diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi')
113 files changed, 17752 insertions, 8462 deletions
diff --git a/drivers/net/wireless/iwlwifi/Kconfig b/drivers/net/wireless/iwlwifi/Kconfig index 56c2040a955..7fd50428b93 100644 --- a/drivers/net/wireless/iwlwifi/Kconfig +++ b/drivers/net/wireless/iwlwifi/Kconfig @@ -2,10 +2,6 @@ config IWLWIFI tristate "Intel Wireless WiFi Next Gen AGN - Wireless-N/Advanced-N/Ultimate-N (iwlwifi) " depends on PCI && MAC80211 && HAS_IOMEM select FW_LOADER - select NEW_LEDS - select LEDS_CLASS - select LEDS_TRIGGERS - select MAC80211_LEDS ---help--- Select to build the driver supporting the: @@ -22,6 +18,8 @@ config IWLWIFI Intel Wireless WiFi Link 6150BGN 2 Adapter Intel 100 Series Wi-Fi Adapters (100BGN and 130BGN) Intel 2000 Series Wi-Fi Adapters + Intel 7260 Wi-Fi Adapter + Intel 3160 Wi-Fi Adapter This driver uses the kernel's mac80211 subsystem. @@ -41,22 +39,29 @@ config IWLWIFI say M here and read <file:Documentation/kbuild/modules.txt>. The module will be called iwlwifi. +config IWLWIFI_LEDS + bool + depends on IWLWIFI + depends on LEDS_CLASS=y || LEDS_CLASS=IWLWIFI + select LEDS_TRIGGERS + select MAC80211_LEDS + default y + config IWLDVM tristate "Intel Wireless WiFi DVM Firmware support" depends on IWLWIFI default IWLWIFI help - This is the driver supporting the DVM firmware which is - currently the only firmware available for existing devices. + This is the driver that supports the DVM firmware which is + used by most existing devices (with the exception of 7260 + and 3160). config IWLMVM tristate "Intel Wireless WiFi MVM Firmware support" depends on IWLWIFI help - This is the driver supporting the MVM firmware which is - currently only available for 7000 series devices. - - Say yes if you have such a device. + This is the driver that supports the MVM firmware which is + currently only available for 7260 and 3160 devices. # don't call it _MODULE -- will confuse Kconfig/fixdep/... config IWLWIFI_OPMODE_MODULAR @@ -67,6 +72,19 @@ config IWLWIFI_OPMODE_MODULAR comment "WARNING: iwlwifi is useless without IWLDVM or IWLMVM" depends on IWLWIFI && IWLDVM=n && IWLMVM=n +config IWLWIFI_BCAST_FILTERING + bool "Enable broadcast filtering" + depends on IWLMVM + help + Say Y here to enable default bcast filtering configuration. + + Enabling broadcast filtering will drop any incoming wireless + broadcast frames, except some very specific predefined + patterns (e.g. incoming arp requests). + + If unsure, don't enable this option, as some programs might + expect incoming broadcasts for their normal operations. + menu "Debugging Options" depends on IWLWIFI @@ -127,30 +145,3 @@ config IWLWIFI_DEVICE_TRACING If unsure, say Y so we can help you better when problems occur. endmenu - -config IWLWIFI_DEVICE_TESTMODE - def_bool y - depends on IWLWIFI - depends on NL80211_TESTMODE - help - This option enables the testmode support for iwlwifi device through - NL80211_TESTMODE. This provide the capabilities of enable user space - validation applications to interacts with the device through the - generic netlink message via NL80211_TESTMODE channel. - -config IWLWIFI_P2P - def_bool y - bool "iwlwifi experimental P2P support" - depends on IWLWIFI - help - This option enables experimental P2P support for some devices - based on microcode support. Since P2P support is still under - development, this option may even enable it for some devices - now that turn out to not support it in the future due to - microcode restrictions. - - To determine if your microcode supports the experimental P2P - offered by this option, check if the driver advertises AP - support when it is loaded. - - Say Y only if you want to experiment with P2P. diff --git a/drivers/net/wireless/iwlwifi/Makefile b/drivers/net/wireless/iwlwifi/Makefile index 3b5613ea458..3d32f412017 100644 --- a/drivers/net/wireless/iwlwifi/Makefile +++ b/drivers/net/wireless/iwlwifi/Makefile @@ -7,14 +7,15 @@ iwlwifi-objs += iwl-notif-wait.o iwlwifi-objs += iwl-eeprom-read.o iwl-eeprom-parse.o iwlwifi-objs += iwl-phy-db.o iwl-nvm-parse.o iwlwifi-objs += pcie/drv.o pcie/rx.o pcie/tx.o pcie/trans.o -iwlwifi-objs += iwl-1000.o iwl-2000.o iwl-5000.o iwl-6000.o iwl-7000.o +iwlwifi-$(CONFIG_IWLDVM) += iwl-1000.o iwl-2000.o iwl-5000.o iwl-6000.o +iwlwifi-$(CONFIG_IWLMVM) += iwl-7000.o iwl-8000.o + +iwlwifi-objs += $(iwlwifi-m) iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TRACING) += iwl-devtrace.o -iwlwifi-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += iwl-test.o ccflags-y += -D__CHECK_ENDIAN__ -I$(src) - obj-$(CONFIG_IWLDVM) += dvm/ obj-$(CONFIG_IWLMVM) += mvm/ diff --git a/drivers/net/wireless/iwlwifi/dvm/Makefile b/drivers/net/wireless/iwlwifi/dvm/Makefile index 5ff76b20414..4d19685f31c 100644 --- a/drivers/net/wireless/iwlwifi/dvm/Makefile +++ b/drivers/net/wireless/iwlwifi/dvm/Makefile @@ -4,10 +4,10 @@ iwldvm-objs += main.o rs.o mac80211.o ucode.o tx.o iwldvm-objs += lib.o calib.o tt.o sta.o rx.o iwldvm-objs += power.o -iwldvm-objs += scan.o led.o +iwldvm-objs += scan.o iwldvm-objs += rxon.o devices.o +iwldvm-$(CONFIG_IWLWIFI_LEDS) += led.o iwldvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o -iwldvm-$(CONFIG_IWLWIFI_DEVICE_TESTMODE) += testmode.o ccflags-y += -D__CHECK_ENDIAN__ -I$(src)/../ diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h index 48545ab0031..c160dad0303 100644 --- a/drivers/net/wireless/iwlwifi/dvm/agn.h +++ b/drivers/net/wireless/iwlwifi/dvm/agn.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -76,13 +76,16 @@ #define IWL_INVALID_STATION 255 /* device operations */ -extern struct iwl_lib_ops iwl1000_lib; -extern struct iwl_lib_ops iwl2000_lib; -extern struct iwl_lib_ops iwl2030_lib; -extern struct iwl_lib_ops iwl5000_lib; -extern struct iwl_lib_ops iwl5150_lib; -extern struct iwl_lib_ops iwl6000_lib; -extern struct iwl_lib_ops iwl6030_lib; +extern const struct iwl_dvm_cfg iwl_dvm_1000_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_2000_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_105_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_2030_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_5000_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_5150_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_6000_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_6005_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_6050_cfg; +extern const struct iwl_dvm_cfg iwl_dvm_6030_cfg; #define TIME_UNIT 1024 @@ -103,11 +106,10 @@ extern struct iwl_lib_ops iwl6030_lib; #define STATUS_CHANNEL_SWITCH_PENDING 11 #define STATUS_SCAN_COMPLETE 12 #define STATUS_POWER_PMI 13 -#define STATUS_SCAN_ROC_EXPIRED 14 struct iwl_ucode_capabilities; -extern struct ieee80211_ops iwlagn_hw_ops; +extern const struct ieee80211_ops iwlagn_hw_ops; static inline void iwl_set_calib_hdr(struct iwl_calib_hdr *hdr, u8 cmd) { @@ -247,7 +249,6 @@ u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant_idx, u8 valid); /* scan */ void iwlagn_post_scan(struct iwl_priv *priv); -void iwlagn_disable_roc(struct iwl_priv *priv); int iwl_force_rf_reset(struct iwl_priv *priv, bool external); void iwl_init_scan_params(struct iwl_priv *priv); int iwl_scan_cancel(struct iwl_priv *priv); @@ -262,10 +263,6 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv, enum iwl_scan_type scan_type, enum ieee80211_band band); -void iwl_scan_roc_expired(struct iwl_priv *priv); -void iwl_scan_offchannel_skb(struct iwl_priv *priv); -void iwl_scan_offchannel_skb_status(struct iwl_priv *priv); - /* For faster active scanning, scan will move to the next channel if fewer than * PLCP_QUIET_THRESH packets are heard on this channel within * ACTIVE_QUIET_TIME after sending probe request. This shortens the dwell @@ -291,8 +288,8 @@ void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena); static inline bool iwl_advanced_bt_coexist(struct iwl_priv *priv) { - return priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist; + return priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist; } #ifdef CONFIG_IWLWIFI_DEBUG @@ -400,44 +397,7 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags) return cpu_to_le32(flags|(u32)rate); } -extern int iwl_alive_start(struct iwl_priv *priv); - -/* testmode support */ -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - -extern int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, - int len); -extern int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, - struct sk_buff *skb, - struct netlink_callback *cb, - void *data, int len); -extern void iwl_testmode_init(struct iwl_priv *priv); -extern void iwl_testmode_free(struct iwl_priv *priv); - -#else - -static inline -int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) -{ - return -ENOSYS; -} - -static inline -int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, - struct netlink_callback *cb, - void *data, int len) -{ - return -ENOSYS; -} - -static inline void iwl_testmode_init(struct iwl_priv *priv) -{ -} - -static inline void iwl_testmode_free(struct iwl_priv *priv) -{ -} -#endif +int iwl_alive_start(struct iwl_priv *priv); #ifdef CONFIG_IWLWIFI_DEBUG void iwl_print_rx_config_cmd(struct iwl_priv *priv, @@ -520,7 +480,7 @@ do { \ } while (0) #endif /* CONFIG_IWLWIFI_DEBUG */ -extern const char *iwl_dvm_cmd_strings[REPLY_MAX]; +extern const char *const iwl_dvm_cmd_strings[REPLY_MAX]; static inline const char *iwl_dvm_get_cmd_string(u8 cmd) { diff --git a/drivers/net/wireless/iwlwifi/dvm/calib.c b/drivers/net/wireless/iwlwifi/dvm/calib.c index d6c4cf2ad7c..20e6aa91070 100644 --- a/drivers/net/wireless/iwlwifi/dvm/calib.c +++ b/drivers/net/wireless/iwlwifi/dvm/calib.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -94,7 +94,6 @@ int iwl_send_calib_results(struct iwl_priv *priv) { struct iwl_host_cmd hcmd = { .id = REPLY_PHY_CALIBRATION_CMD, - .flags = CMD_SYNC, }; struct iwl_calib_result *res; @@ -521,7 +520,7 @@ static int iwl_enhance_sensitivity_write(struct iwl_priv *priv) iwl_prepare_legacy_sensitivity_tbl(priv, data, &cmd.enhance_table[0]); - if (priv->cfg->base_params->hd_v2) { + if (priv->lib->hd_v2) { cmd.enhance_table[HD_INA_NON_SQUARE_DET_OFDM_INDEX] = HD_INA_NON_SQUARE_DET_OFDM_DATA_V2; cmd.enhance_table[HD_INA_NON_SQUARE_DET_CCK_INDEX] = @@ -895,7 +894,7 @@ static void iwlagn_gain_computation(struct iwl_priv *priv, continue; } - delta_g = (priv->cfg->base_params->chain_noise_scale * + delta_g = (priv->lib->chain_noise_scale * ((s32)average_noise[default_chain] - (s32)average_noise[i])) / 1500; @@ -1051,8 +1050,8 @@ void iwl_chain_noise_calibration(struct iwl_priv *priv) return; /* Analyze signal for disconnected antenna */ - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { /* Disable disconnected antenna algorithm for advanced bt coex, assuming valid antennas are connected */ data->active_chains = priv->nvm_data->valid_rx_ant; diff --git a/drivers/net/wireless/iwlwifi/dvm/calib.h b/drivers/net/wireless/iwlwifi/dvm/calib.h index cfddde19494..aeae4e80ea4 100644 --- a/drivers/net/wireless/iwlwifi/dvm/calib.h +++ b/drivers/net/wireless/iwlwifi/dvm/calib.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/dvm/commands.h b/drivers/net/wireless/iwlwifi/dvm/commands.h index 95ca026ecc9..751ae1d10b7 100644 --- a/drivers/net/wireless/iwlwifi/dvm/commands.h +++ b/drivers/net/wireless/iwlwifi/dvm/commands.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -838,10 +838,6 @@ struct iwl_qosparam_cmd { #define STA_MODIFY_DELBA_TID_MSK 0x10 #define STA_MODIFY_SLEEP_TX_COUNT_MSK 0x20 -/* Receiver address (actually, Rx station's index into station table), - * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ -#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) - /* agn */ struct iwl_keyinfo { __le16 key_flags; @@ -1225,14 +1221,6 @@ struct iwl_rx_mpdu_res_start { #define TX_CMD_SEC_KEY128 0x08 /* - * security overhead sizes - */ -#define WEP_IV_LEN 4 -#define WEP_ICV_LEN 4 -#define CCMP_MIC_LEN 8 -#define TKIP_ICV_LEN 4 - -/* * REPLY_TX = 0x1c (command) */ diff --git a/drivers/net/wireless/iwlwifi/dvm/debugfs.c b/drivers/net/wireless/iwlwifi/dvm/debugfs.c index d5329489245..0ffb6ff1a25 100644 --- a/drivers/net/wireless/iwlwifi/dvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/dvm/debugfs.c @@ -2,7 +2,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -69,19 +69,7 @@ } while (0) /* file operation */ -#define DEBUGFS_READ_FUNC(name) \ -static ssize_t iwl_dbgfs_##name##_read(struct file *file, \ - char __user *user_buf, \ - size_t count, loff_t *ppos); - -#define DEBUGFS_WRITE_FUNC(name) \ -static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ - const char __user *user_buf, \ - size_t count, loff_t *ppos); - - #define DEBUGFS_READ_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .read = iwl_dbgfs_##name##_read, \ .open = simple_open, \ @@ -89,7 +77,6 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ }; #define DEBUGFS_WRITE_FILE_OPS(name) \ - DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .open = simple_open, \ @@ -98,8 +85,6 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name); \ - DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .read = iwl_dbgfs_##name##_read, \ @@ -367,12 +352,12 @@ static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf, channels[i].max_power, channels[i].flags & IEEE80211_CHAN_RADAR ? " (IEEE 802.11h required)" : "", - ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) + ((channels[i].flags & IEEE80211_CHAN_NO_IR) || (channels[i].flags & IEEE80211_CHAN_RADAR)) ? "" : ", IBSS", channels[i].flags & - IEEE80211_CHAN_PASSIVE_SCAN ? + IEEE80211_CHAN_NO_IR ? "passive only" : "active/passive"); } supp_band = iwl_get_hw_mode(priv, IEEE80211_BAND_5GHZ); @@ -390,12 +375,12 @@ static ssize_t iwl_dbgfs_channels_read(struct file *file, char __user *user_buf, channels[i].max_power, channels[i].flags & IEEE80211_CHAN_RADAR ? " (IEEE 802.11h required)" : "", - ((channels[i].flags & IEEE80211_CHAN_NO_IBSS) + ((channels[i].flags & IEEE80211_CHAN_NO_IR) || (channels[i].flags & IEEE80211_CHAN_RADAR)) ? "" : ", IBSS", channels[i].flags & - IEEE80211_CHAN_PASSIVE_SCAN ? + IEEE80211_CHAN_NO_IR ? "passive only" : "active/passive"); } ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); @@ -1496,7 +1481,7 @@ static ssize_t iwl_dbgfs_ucode_bt_stats_read(struct file *file, /* make request to uCode to retrieve statistics information */ mutex_lock(&priv->mutex); - ret = iwl_send_statistics_request(priv, CMD_SYNC, false); + ret = iwl_send_statistics_request(priv, 0, false); mutex_unlock(&priv->mutex); if (ret) @@ -1883,7 +1868,7 @@ static ssize_t iwl_dbgfs_clear_ucode_statistics_write(struct file *file, /* make request to uCode to retrieve statistics information */ mutex_lock(&priv->mutex); - iwl_send_statistics_request(priv, CMD_SYNC, true); + iwl_send_statistics_request(priv, 0, true); mutex_unlock(&priv->mutex); return count; @@ -2203,7 +2188,6 @@ static int iwl_cmd_echo_test(struct iwl_priv *priv) struct iwl_host_cmd cmd = { .id = REPLY_ECHO, .len = { 0 }, - .flags = CMD_SYNC, }; ret = iwl_dvm_send_cmd(priv, &cmd); @@ -2335,7 +2319,7 @@ static ssize_t iwl_dbgfs_fw_restart_write(struct file *file, mutex_lock(&priv->mutex); /* take the return value to make compiler happy - it will fail anyway */ - ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, CMD_SYNC, 0, NULL); + ret = iwl_dvm_send_cmd_pdu(priv, REPLY_ERROR, 0, 0, NULL); mutex_unlock(&priv->mutex); diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h index 71ea77576d2..a6f22c32a27 100644 --- a/drivers/net/wireless/iwlwifi/dvm/dev.h +++ b/drivers/net/wireless/iwlwifi/dvm/dev.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -52,8 +52,6 @@ #include "rs.h" #include "tt.h" -#include "iwl-test.h" - /* CT-KILL constants */ #define CT_KILL_THRESHOLD_LEGACY 110 /* in Celsius */ #define CT_KILL_THRESHOLD 114 /* in Celsius */ @@ -272,7 +270,7 @@ struct iwl_sensitivity_ranges { * iwlXXXX_ <-- Hardware specific (implemented in iwl-XXXX.c for XXXX) * ****************************************************************************/ -extern void iwl_update_chain_flags(struct iwl_priv *priv); +void iwl_update_chain_flags(struct iwl_priv *priv); extern const u8 iwl_bcast_addr[ETH_ALEN]; #define IWL_OPERATION_MODE_AUTO 0 @@ -542,7 +540,6 @@ struct iwl_rxon_context { enum iwl_scan_type { IWL_SCAN_NORMAL, IWL_SCAN_RADIO_RESET, - IWL_SCAN_ROC, }; /** @@ -568,16 +565,61 @@ struct iwl_hw_params { const struct iwl_sensitivity_ranges *sens; }; -struct iwl_lib_ops { - /* set hw dependent parameters */ +/** + * struct iwl_dvm_bt_params - DVM specific BT (coex) parameters + * @advanced_bt_coexist: support advanced bt coexist + * @bt_init_traffic_load: specify initial bt traffic load + * @bt_prio_boost: default bt priority boost value + * @agg_time_limit: maximum number of uSec in aggregation + * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode + */ +struct iwl_dvm_bt_params { + bool advanced_bt_coexist; + u8 bt_init_traffic_load; + u32 bt_prio_boost; + u16 agg_time_limit; + bool bt_sco_disable; + bool bt_session_2; +}; + +/** + * struct iwl_dvm_cfg - DVM firmware specific device configuration + * @set_hw_params: set hardware parameters + * @set_channel_switch: send channel switch command + * @nic_config: apply device specific configuration + * @temperature: read temperature + * @adv_thermal_throttle: support advance thermal throttle + * @support_ct_kill_exit: support ct kill exit condition + * @plcp_delta_threshold: plcp error rate threshold used to trigger + * radio tuning when there is a high receiving plcp error rate + * @chain_noise_scale: default chain noise scale used for gain computation + * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up + * @no_idle_support: do not support idle mode + * @bt_params: pointer to BT parameters + * @need_temp_offset_calib: need to perform temperature offset calibration + * @no_xtal_calib: some devices do not need crystal calibration data, + * don't send it to those + * @temp_offset_v2: support v2 of temperature offset calibration + * @adv_pm: advanced power management + */ +struct iwl_dvm_cfg { void (*set_hw_params)(struct iwl_priv *priv); int (*set_channel_switch)(struct iwl_priv *priv, struct ieee80211_channel_switch *ch_switch); - /* device specific configuration */ void (*nic_config)(struct iwl_priv *priv); - - /* temperature */ void (*temperature)(struct iwl_priv *priv); + + const struct iwl_dvm_bt_params *bt_params; + s32 chain_noise_scale; + u8 plcp_delta_threshold; + bool adv_thermal_throttle; + bool support_ct_kill_exit; + bool hd_v2; + bool no_idle_support; + bool need_temp_offset_calib; + bool no_xtal_calib; + bool temp_offset_v2; + bool adv_pm; }; struct iwl_wipan_noa_data { @@ -610,7 +652,7 @@ struct iwl_priv { struct device *dev; /* for debug prints only */ const struct iwl_cfg *cfg; const struct iwl_fw *fw; - const struct iwl_lib_ops *lib; + const struct iwl_dvm_cfg *lib; unsigned long status; spinlock_t sta_lock; @@ -646,10 +688,6 @@ struct iwl_priv { struct iwl_spectrum_notification measure_report; u8 measurement_status; -#define IWL_OWNERSHIP_DRIVER 0 -#define IWL_OWNERSHIP_TM 1 - u8 ucode_owner; - /* ucode beacon time */ u32 ucode_beacon_time; int missed_beacon_threshold; @@ -786,12 +824,6 @@ struct iwl_priv { struct reply_tx_error_statistics reply_tx_stats; struct reply_agg_tx_error_statistics reply_agg_tx_stats; - /* remain-on-channel offload support */ - struct ieee80211_channel *hw_roc_channel; - struct delayed_work hw_roc_disable_work; - int hw_roc_duration; - bool hw_roc_setup, hw_roc_start_notified; - /* bt coex */ u8 bt_enable_flag; u8 bt_status; @@ -844,7 +876,7 @@ struct iwl_priv { #endif /* CONFIG_IWLWIFI_DEBUGFS */ struct iwl_nvm_data *nvm_data; - /* eeprom blob for debugfs/testmode */ + /* eeprom blob for debugfs */ u8 *eeprom_blob; size_t eeprom_blob_size; @@ -856,13 +888,10 @@ struct iwl_priv { struct iwl_event_log event_log; +#ifdef CONFIG_IWLWIFI_LEDS struct led_classdev led; unsigned long blink_on, blink_off; bool led_registered; - -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - struct iwl_test tst; - u32 tm_fixed_rate; #endif /* WoWLAN GTK rekey data */ @@ -870,6 +899,9 @@ struct iwl_priv { __le64 replay_ctr; __le16 last_seq_ctl; bool have_rekey_data; +#ifdef CONFIG_PM_SLEEP + struct wiphy_wowlan_support wowlan_support; +#endif /* device_pointers: pointers to ucode event tables */ struct { diff --git a/drivers/net/wireless/iwlwifi/dvm/devices.c b/drivers/net/wireless/iwlwifi/dvm/devices.c index c48907c8ab4..34b41e5f7cf 100644 --- a/drivers/net/wireless/iwlwifi/dvm/devices.c +++ b/drivers/net/wireless/iwlwifi/dvm/devices.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -174,10 +174,13 @@ static void iwl1000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.sens = &iwl1000_sensitivity; } -struct iwl_lib_ops iwl1000_lib = { +const struct iwl_dvm_cfg iwl_dvm_1000_cfg = { .set_hw_params = iwl1000_hw_set_hw_params, .nic_config = iwl1000_nic_config, .temperature = iwlagn_temperature, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, }; @@ -232,16 +235,56 @@ static void iwl2000_hw_set_hw_params(struct iwl_priv *priv) priv->hw_params.sens = &iwl2000_sensitivity; } -struct iwl_lib_ops iwl2000_lib = { +const struct iwl_dvm_cfg iwl_dvm_2000_cfg = { .set_hw_params = iwl2000_hw_set_hw_params, .nic_config = iwl2000_nic_config, .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .hd_v2 = true, + .need_temp_offset_calib = true, + .temp_offset_v2 = true, }; -struct iwl_lib_ops iwl2030_lib = { +const struct iwl_dvm_cfg iwl_dvm_105_cfg = { .set_hw_params = iwl2000_hw_set_hw_params, .nic_config = iwl2000_nic_config, .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .hd_v2 = true, + .need_temp_offset_calib = true, + .temp_offset_v2 = true, + .adv_pm = true, +}; + +static const struct iwl_dvm_bt_params iwl2030_bt_params = { + /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */ + .advanced_bt_coexist = true, + .agg_time_limit = BT_AGG_THRESHOLD_DEF, + .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE, + .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT32, + .bt_sco_disable = true, + .bt_session_2 = true, +}; + +const struct iwl_dvm_cfg iwl_dvm_2030_cfg = { + .set_hw_params = iwl2000_hw_set_hw_params, + .nic_config = iwl2000_nic_config, + .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .hd_v2 = true, + .bt_params = &iwl2030_bt_params, + .need_temp_offset_calib = true, + .temp_offset_v2 = true, + .adv_pm = true, }; /* @@ -274,7 +317,7 @@ static const struct iwl_sensitivity_ranges iwl5000_sensitivity = { .nrg_th_cca = 62, }; -static struct iwl_sensitivity_ranges iwl5150_sensitivity = { +static const struct iwl_sensitivity_ranges iwl5150_sensitivity = { .min_nrg_cck = 95, .auto_corr_min_ofdm = 90, .auto_corr_min_ofdm_mrc = 170, @@ -374,7 +417,6 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv, struct iwl_host_cmd hcmd = { .id = REPLY_CHANNEL_SWITCH, .len = { sizeof(cmd), }, - .flags = CMD_SYNC, .data = { &cmd, }, }; @@ -420,16 +462,23 @@ static int iwl5000_hw_channel_switch(struct iwl_priv *priv, return iwl_dvm_send_cmd(priv, &hcmd); } -struct iwl_lib_ops iwl5000_lib = { +const struct iwl_dvm_cfg iwl_dvm_5000_cfg = { .set_hw_params = iwl5000_hw_set_hw_params, .set_channel_switch = iwl5000_hw_channel_switch, .temperature = iwlagn_temperature, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .no_idle_support = true, }; -struct iwl_lib_ops iwl5150_lib = { +const struct iwl_dvm_cfg iwl_dvm_5150_cfg = { .set_hw_params = iwl5150_hw_set_hw_params, .set_channel_switch = iwl5000_hw_channel_switch, .temperature = iwl5150_temperature, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .no_idle_support = true, + .no_xtal_calib = true, }; @@ -529,7 +578,6 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv, struct iwl_host_cmd hcmd = { .id = REPLY_CHANNEL_SWITCH, .len = { sizeof(*cmd), }, - .flags = CMD_SYNC, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, }; int err; @@ -584,16 +632,59 @@ static int iwl6000_hw_channel_switch(struct iwl_priv *priv, return err; } -struct iwl_lib_ops iwl6000_lib = { +const struct iwl_dvm_cfg iwl_dvm_6000_cfg = { .set_hw_params = iwl6000_hw_set_hw_params, .set_channel_switch = iwl6000_hw_channel_switch, .nic_config = iwl6000_nic_config, .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, +}; + +const struct iwl_dvm_cfg iwl_dvm_6005_cfg = { + .set_hw_params = iwl6000_hw_set_hw_params, + .set_channel_switch = iwl6000_hw_channel_switch, + .nic_config = iwl6000_nic_config, + .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .need_temp_offset_calib = true, +}; + +const struct iwl_dvm_cfg iwl_dvm_6050_cfg = { + .set_hw_params = iwl6000_hw_set_hw_params, + .set_channel_switch = iwl6000_hw_channel_switch, + .nic_config = iwl6000_nic_config, + .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1500, +}; + +static const struct iwl_dvm_bt_params iwl6000_bt_params = { + /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */ + .advanced_bt_coexist = true, + .agg_time_limit = BT_AGG_THRESHOLD_DEF, + .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE, + .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT, + .bt_sco_disable = true, }; -struct iwl_lib_ops iwl6030_lib = { +const struct iwl_dvm_cfg iwl_dvm_6030_cfg = { .set_hw_params = iwl6000_hw_set_hw_params, .set_channel_switch = iwl6000_hw_channel_switch, .nic_config = iwl6000_nic_config, .temperature = iwlagn_temperature, + .adv_thermal_throttle = true, + .support_ct_kill_exit = true, + .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, + .chain_noise_scale = 1000, + .bt_params = &iwl6000_bt_params, + .need_temp_offset_calib = true, + .adv_pm = true, }; diff --git a/drivers/net/wireless/iwlwifi/dvm/led.c b/drivers/net/wireless/iwlwifi/dvm/led.c index 33c7e15d24f..ca4d6692cc4 100644 --- a/drivers/net/wireless/iwlwifi/dvm/led.c +++ b/drivers/net/wireless/iwlwifi/dvm/led.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -27,7 +27,6 @@ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> #include <linux/delay.h> #include <linux/skbuff.h> #include <linux/netdevice.h> diff --git a/drivers/net/wireless/iwlwifi/dvm/led.h b/drivers/net/wireless/iwlwifi/dvm/led.h index 8749dcfe695..1c6b2252d0f 100644 --- a/drivers/net/wireless/iwlwifi/dvm/led.h +++ b/drivers/net/wireless/iwlwifi/dvm/led.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -36,8 +36,20 @@ struct iwl_priv; #define IWL_LED_ACTIVITY (0<<1) #define IWL_LED_LINK (1<<1) +#ifdef CONFIG_IWLWIFI_LEDS void iwlagn_led_enable(struct iwl_priv *priv); void iwl_leds_init(struct iwl_priv *priv); void iwl_leds_exit(struct iwl_priv *priv); +#else +static inline void iwlagn_led_enable(struct iwl_priv *priv) +{ +} +static inline void iwl_leds_init(struct iwl_priv *priv) +{ +} +static inline void iwl_leds_exit(struct iwl_priv *priv) +{ +} +#endif #endif /* __iwl_leds_h__ */ diff --git a/drivers/net/wireless/iwlwifi/dvm/lib.c b/drivers/net/wireless/iwlwifi/dvm/lib.c index 54f553380aa..2191621d69c 100644 --- a/drivers/net/wireless/iwlwifi/dvm/lib.c +++ b/drivers/net/wireless/iwlwifi/dvm/lib.c @@ -2,7 +2,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -29,7 +29,6 @@ #include <linux/etherdevice.h> #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> #include <linux/sched.h> #include <net/mac80211.h> @@ -82,7 +81,7 @@ int iwlagn_send_tx_power(struct iwl_priv *priv) else tx_ant_cfg_cmd = REPLY_TX_POWER_DBM_CMD; - return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, CMD_SYNC, + return iwl_dvm_send_cmd_pdu(priv, tx_ant_cfg_cmd, 0, sizeof(tx_power_cmd), &tx_power_cmd); } @@ -142,7 +141,6 @@ int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk) struct iwl_host_cmd cmd = { .id = REPLY_TXFIFO_FLUSH, .len = { sizeof(struct iwl_txfifo_flush_cmd), }, - .flags = CMD_SYNC, .data = { &flush_cmd, }, }; @@ -181,7 +179,7 @@ void iwlagn_dev_txfifo_flush(struct iwl_priv *priv) goto done; } IWL_DEBUG_INFO(priv, "wait transmit/flush all frames\n"); - iwl_trans_wait_tx_queue_empty(priv->trans); + iwl_trans_wait_tx_queue_empty(priv->trans, 0xffffffff); done: ieee80211_wake_queues(priv->hw); mutex_unlock(&priv->mutex); @@ -254,23 +252,23 @@ void iwlagn_send_advance_bt_config(struct iwl_priv *priv) BUILD_BUG_ON(sizeof(iwlagn_def_3w_lookup) != sizeof(basic.bt3_lookup_table)); - if (priv->cfg->bt_params) { + if (priv->lib->bt_params) { /* * newer generation of devices (2000 series and newer) * use the version 2 of the bt command * we need to make sure sending the host command * with correct data structure to avoid uCode assert */ - if (priv->cfg->bt_params->bt_session_2) { + if (priv->lib->bt_params->bt_session_2) { bt_cmd_v2.prio_boost = cpu_to_le32( - priv->cfg->bt_params->bt_prio_boost); + priv->lib->bt_params->bt_prio_boost); bt_cmd_v2.tx_prio_boost = 0; bt_cmd_v2.rx_prio_boost = 0; } else { /* older version only has 8 bits */ - WARN_ON(priv->cfg->bt_params->bt_prio_boost & ~0xFF); + WARN_ON(priv->lib->bt_params->bt_prio_boost & ~0xFF); bt_cmd_v1.prio_boost = - priv->cfg->bt_params->bt_prio_boost; + priv->lib->bt_params->bt_prio_boost; bt_cmd_v1.tx_prio_boost = 0; bt_cmd_v1.rx_prio_boost = 0; } @@ -330,16 +328,16 @@ void iwlagn_send_advance_bt_config(struct iwl_priv *priv) priv->bt_full_concurrent ? "full concurrency" : "3-wire"); - if (priv->cfg->bt_params->bt_session_2) { + if (priv->lib->bt_params->bt_session_2) { memcpy(&bt_cmd_v2.basic, &basic, sizeof(basic)); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, - CMD_SYNC, sizeof(bt_cmd_v2), &bt_cmd_v2); + 0, sizeof(bt_cmd_v2), &bt_cmd_v2); } else { memcpy(&bt_cmd_v1.basic, &basic, sizeof(basic)); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, - CMD_SYNC, sizeof(bt_cmd_v1), &bt_cmd_v1); + 0, sizeof(bt_cmd_v1), &bt_cmd_v1); } if (ret) IWL_ERR(priv, "failed to send BT Coex Config\n"); @@ -758,8 +756,8 @@ static bool is_single_rx_stream(struct iwl_priv *priv) */ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv) { - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist && + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist && (priv->bt_full_concurrent || priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { /* @@ -830,8 +828,8 @@ void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx) else active_chains = priv->nvm_data->valid_rx_ant; - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist && + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist && (priv->bt_full_concurrent || priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH)) { /* @@ -1045,7 +1043,6 @@ int iwlagn_send_patterns(struct iwl_priv *priv, struct iwl_host_cmd cmd = { .id = REPLY_WOWLAN_PATTERNS, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, - .flags = CMD_SYNC, }; int i, err; @@ -1202,7 +1199,6 @@ int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan) if (key_data.use_rsc_tsc) { struct iwl_host_cmd rsc_tsc_cmd = { .id = REPLY_WOWLAN_TSC_RSC_PARAMS, - .flags = CMD_SYNC, .data[0] = key_data.rsc_tsc, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, .len[0] = sizeof(*key_data.rsc_tsc), @@ -1216,7 +1212,7 @@ int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan) if (key_data.use_tkip) { ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_TKIP_PARAMS, - CMD_SYNC, sizeof(tkip_cmd), + 0, sizeof(tkip_cmd), &tkip_cmd); if (ret) goto out; @@ -1232,20 +1228,20 @@ int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan) ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_KEK_KCK_MATERIAL, - CMD_SYNC, sizeof(kek_kck_cmd), + 0, sizeof(kek_kck_cmd), &kek_kck_cmd); if (ret) goto out; } } - ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, CMD_SYNC, + ret = iwl_dvm_send_cmd_pdu(priv, REPLY_D3_CONFIG, 0, sizeof(d3_cfg_cmd), &d3_cfg_cmd); if (ret) goto out; ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WOWLAN_WAKEUP_FILTER, - CMD_SYNC, sizeof(wakeup_filter_cmd), + 0, sizeof(wakeup_filter_cmd), &wakeup_filter_cmd); if (ret) goto out; @@ -1288,12 +1284,6 @@ int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd) if (!(cmd->flags & CMD_ASYNC)) lockdep_assert_held(&priv->mutex); - if (priv->ucode_owner == IWL_OWNERSHIP_TM && - !(cmd->flags & CMD_ON_DEMAND)) { - IWL_DEBUG_HC(priv, "tm own the uCode, no regular hcmd send\n"); - return -EIO; - } - return iwl_trans_send_cmd(priv->trans, cmd); } diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c index cab23af0be9..29af7b51e37 100644 --- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -28,7 +28,6 @@ *****************************************************************************/ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> #include <linux/slab.h> #include <linux/dma-mapping.h> #include <linux/delay.h> @@ -76,29 +75,6 @@ static const struct ieee80211_iface_limit iwlagn_2sta_limits[] = { }, }; -static const struct ieee80211_iface_limit iwlagn_p2p_sta_go_limits[] = { - { - .max = 1, - .types = BIT(NL80211_IFTYPE_STATION), - }, - { - .max = 1, - .types = BIT(NL80211_IFTYPE_P2P_GO) | - BIT(NL80211_IFTYPE_AP), - }, -}; - -static const struct ieee80211_iface_limit iwlagn_p2p_2sta_limits[] = { - { - .max = 2, - .types = BIT(NL80211_IFTYPE_STATION), - }, - { - .max = 1, - .types = BIT(NL80211_IFTYPE_P2P_CLIENT), - }, -}; - static const struct ieee80211_iface_combination iwlagn_iface_combinations_dualmode[] = { { .num_different_channels = 1, @@ -114,21 +90,6 @@ iwlagn_iface_combinations_dualmode[] = { }, }; -static const struct ieee80211_iface_combination -iwlagn_iface_combinations_p2p[] = { - { .num_different_channels = 1, - .max_interfaces = 2, - .beacon_int_infra_match = true, - .limits = iwlagn_p2p_sta_go_limits, - .n_limits = ARRAY_SIZE(iwlagn_p2p_sta_go_limits), - }, - { .num_different_channels = 1, - .max_interfaces = 2, - .limits = iwlagn_p2p_2sta_limits, - .n_limits = ARRAY_SIZE(iwlagn_p2p_2sta_limits), - }, -}; - /* * Not a mac80211 entry point function, but it fits in with all the * other mac80211 functions grouped here. @@ -186,42 +147,37 @@ int iwlagn_mac_setup_register(struct iwl_priv *priv, BUILD_BUG_ON(NUM_IWL_RXON_CTX != 2); - if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT)) { - hw->wiphy->iface_combinations = iwlagn_iface_combinations_p2p; - hw->wiphy->n_iface_combinations = - ARRAY_SIZE(iwlagn_iface_combinations_p2p); - } else if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { + if (hw->wiphy->interface_modes & BIT(NL80211_IFTYPE_AP)) { hw->wiphy->iface_combinations = iwlagn_iface_combinations_dualmode; hw->wiphy->n_iface_combinations = ARRAY_SIZE(iwlagn_iface_combinations_dualmode); } - hw->wiphy->max_remain_on_channel_duration = 500; - - hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | - WIPHY_FLAG_DISABLE_BEACON_HINTS | - WIPHY_FLAG_IBSS_RSN; + hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; + hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | + REGULATORY_DISABLE_BEACON_HINTS; #ifdef CONFIG_PM_SLEEP if (priv->fw->img[IWL_UCODE_WOWLAN].sec[0].len && priv->trans->ops->d3_suspend && priv->trans->ops->d3_resume && device_can_wakeup(priv->trans->dev)) { - hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | - WIPHY_WOWLAN_DISCONNECT | - WIPHY_WOWLAN_EAP_IDENTITY_REQ | - WIPHY_WOWLAN_RFKILL_RELEASE; + priv->wowlan_support.flags = WIPHY_WOWLAN_MAGIC_PKT | + WIPHY_WOWLAN_DISCONNECT | + WIPHY_WOWLAN_EAP_IDENTITY_REQ | + WIPHY_WOWLAN_RFKILL_RELEASE; if (!iwlwifi_mod_params.sw_crypto) - hw->wiphy->wowlan.flags |= + priv->wowlan_support.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | WIPHY_WOWLAN_GTK_REKEY_FAILURE; - hw->wiphy->wowlan.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; - hw->wiphy->wowlan.pattern_min_len = + priv->wowlan_support.n_patterns = IWLAGN_WOWLAN_MAX_PATTERNS; + priv->wowlan_support.pattern_min_len = IWLAGN_WOWLAN_MIN_PATTERN_LEN; - hw->wiphy->wowlan.pattern_max_len = + priv->wowlan_support.pattern_max_len = IWLAGN_WOWLAN_MAX_PATTERN_LEN; + hw->wiphy->wowlan = &priv->wowlan_support; } #endif @@ -365,12 +321,6 @@ static void iwlagn_mac_stop(struct ieee80211_hw *hw) flush_workqueue(priv->workqueue); - /* User space software may expect getting rfkill changes - * even if interface is down, trans->down will leave the RF - * kill interrupt enabled - */ - iwl_trans_stop_hw(priv->trans, false); - IWL_DEBUG_MAC80211(priv, "leave\n"); } @@ -426,7 +376,11 @@ static int iwlagn_mac_suspend(struct ieee80211_hw *hw, if (ret) goto error; - iwl_trans_d3_suspend(priv->trans); + /* let the ucode operate on its own */ + iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_SET, + CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); + + iwl_trans_d3_suspend(priv->trans, false); goto out; @@ -452,9 +406,8 @@ static bool iwl_resume_status_fn(struct iwl_notif_wait_data *notif_wait, { struct iwl_resume_data *resume_data = data; struct iwl_priv *priv = resume_data->priv; - u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - if (len - 4 != sizeof(*resume_data->cmd)) { + if (iwl_rx_packet_payload_len(pkt) != sizeof(*resume_data->cmd)) { IWL_ERR(priv, "rx wrong size data\n"); return true; } @@ -500,7 +453,7 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw) /* we'll clear ctx->vif during iwlagn_prepare_restart() */ vif = ctx->vif; - ret = iwl_trans_d3_resume(priv->trans, &d3_status); + ret = iwl_trans_d3_resume(priv->trans, &d3_status, false); if (ret) goto out_unlock; @@ -509,6 +462,10 @@ static int iwlagn_mac_resume(struct ieee80211_hw *hw) goto out_unlock; } + /* uCode is no longer operating by itself */ + iwl_write32(priv->trans, CSR_UCODE_DRV_GP1_CLR, + CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); + base = priv->device_pointers.error_event_table; if (!iwlagn_hw_valid_rtc_data_addr(base)) { IWL_WARN(priv, "Invalid error table during resume!\n"); @@ -739,6 +696,24 @@ static int iwlagn_mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd, return ret; } +static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) +{ + if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) + return false; + return true; +} + +static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) +{ + if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) + return false; + if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) + return true; + + /* disabled by default */ + return false; +} + static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, @@ -760,7 +735,7 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, switch (action) { case IEEE80211_AMPDU_RX_START: - if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) + if (!iwl_enable_rx_ampdu(priv->cfg)) break; IWL_DEBUG_HT(priv, "start Rx\n"); ret = iwl_sta_rx_agg_start(priv, sta, tid, *ssn); @@ -772,7 +747,7 @@ static int iwlagn_mac_ampdu_action(struct ieee80211_hw *hw, case IEEE80211_AMPDU_TX_START: if (!priv->trans->ops->txq_enable) break; - if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) + if (!iwl_enable_tx_ampdu(priv->cfg)) break; IWL_DEBUG_HT(priv, "start Tx\n"); ret = iwlagn_tx_agg_start(priv, vif, sta, tid, ssn); @@ -1059,7 +1034,10 @@ void iwl_chswitch_done(struct iwl_priv *priv, bool is_success) if (test_bit(STATUS_EXIT_PENDING, &priv->status)) return; - if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) + if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status)) + return; + + if (ctx->vif) ieee80211_chswitch_done(ctx->vif, is_success); } @@ -1113,7 +1091,8 @@ static void iwlagn_configure_filter(struct ieee80211_hw *hw, FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL; } -static void iwlagn_mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop) +static void iwlagn_mac_flush(struct ieee80211_hw *hw, struct ieee80211_vif *vif, + u32 queues, bool drop) { struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); @@ -1141,132 +1120,12 @@ static void iwlagn_mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop) } } IWL_DEBUG_MAC80211(priv, "wait transmit/flush all frames\n"); - iwl_trans_wait_tx_queue_empty(priv->trans); + iwl_trans_wait_tx_queue_empty(priv->trans, 0xffffffff); done: mutex_unlock(&priv->mutex); IWL_DEBUG_MAC80211(priv, "leave\n"); } -static int iwlagn_mac_remain_on_channel(struct ieee80211_hw *hw, - struct ieee80211_vif *vif, - struct ieee80211_channel *channel, - int duration, - enum ieee80211_roc_type type) -{ - struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; - int err = 0; - - if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) - return -EOPNOTSUPP; - - if (!(ctx->interface_modes & BIT(NL80211_IFTYPE_P2P_CLIENT))) - return -EOPNOTSUPP; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - mutex_lock(&priv->mutex); - - if (test_bit(STATUS_SCAN_HW, &priv->status)) { - /* mac80211 should not scan while ROC or ROC while scanning */ - if (WARN_ON_ONCE(priv->scan_type != IWL_SCAN_RADIO_RESET)) { - err = -EBUSY; - goto out; - } - - iwl_scan_cancel_timeout(priv, 100); - - if (test_bit(STATUS_SCAN_HW, &priv->status)) { - err = -EBUSY; - goto out; - } - } - - priv->hw_roc_channel = channel; - /* convert from ms to TU */ - priv->hw_roc_duration = DIV_ROUND_UP(1000 * duration, 1024); - priv->hw_roc_start_notified = false; - cancel_delayed_work(&priv->hw_roc_disable_work); - - if (!ctx->is_active) { - static const struct iwl_qos_info default_qos_data = { - .def_qos_parm = { - .ac[0] = { - .cw_min = cpu_to_le16(3), - .cw_max = cpu_to_le16(7), - .aifsn = 2, - .edca_txop = cpu_to_le16(1504), - }, - .ac[1] = { - .cw_min = cpu_to_le16(7), - .cw_max = cpu_to_le16(15), - .aifsn = 2, - .edca_txop = cpu_to_le16(3008), - }, - .ac[2] = { - .cw_min = cpu_to_le16(15), - .cw_max = cpu_to_le16(1023), - .aifsn = 3, - }, - .ac[3] = { - .cw_min = cpu_to_le16(15), - .cw_max = cpu_to_le16(1023), - .aifsn = 7, - }, - }, - }; - - ctx->is_active = true; - ctx->qos_data = default_qos_data; - ctx->staging.dev_type = RXON_DEV_TYPE_P2P; - memcpy(ctx->staging.node_addr, - priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, - ETH_ALEN); - memcpy(ctx->staging.bssid_addr, - priv->contexts[IWL_RXON_CTX_BSS].staging.node_addr, - ETH_ALEN); - err = iwlagn_commit_rxon(priv, ctx); - if (err) - goto out; - ctx->staging.filter_flags |= RXON_FILTER_ASSOC_MSK | - RXON_FILTER_PROMISC_MSK | - RXON_FILTER_CTL2HOST_MSK; - - err = iwlagn_commit_rxon(priv, ctx); - if (err) { - iwlagn_disable_roc(priv); - goto out; - } - priv->hw_roc_setup = true; - } - - err = iwl_scan_initiate(priv, ctx->vif, IWL_SCAN_ROC, channel->band); - if (err) - iwlagn_disable_roc(priv); - - out: - mutex_unlock(&priv->mutex); - IWL_DEBUG_MAC80211(priv, "leave\n"); - - return err; -} - -static int iwlagn_mac_cancel_remain_on_channel(struct ieee80211_hw *hw) -{ - struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - - if (!(priv->valid_contexts & BIT(IWL_RXON_CTX_PAN))) - return -EOPNOTSUPP; - - IWL_DEBUG_MAC80211(priv, "enter\n"); - mutex_lock(&priv->mutex); - iwl_scan_cancel_timeout(priv, priv->hw_roc_duration); - iwlagn_disable_roc(priv); - mutex_unlock(&priv->mutex); - IWL_DEBUG_MAC80211(priv, "leave\n"); - - return 0; -} - static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum ieee80211_rssi_event rssi_event) @@ -1276,8 +1135,8 @@ static void iwlagn_mac_rssi_callback(struct ieee80211_hw *hw, IWL_DEBUG_MAC80211(priv, "enter\n"); mutex_lock(&priv->mutex); - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { if (rssi_event == RSSI_EVENT_LOW) priv->bt_enable_pspoll = true; else if (rssi_event == RSSI_EVENT_HIGH) @@ -1387,7 +1246,7 @@ static int iwl_setup_interface(struct iwl_priv *priv, return err; } - if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist && + if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist && vif->type == NL80211_IFTYPE_ADHOC) { /* * pretend to have high BT traffic as long as we @@ -1422,12 +1281,8 @@ static int iwlagn_mac_add_interface(struct ieee80211_hw *hw, IWL_DEBUG_MAC80211(priv, "enter: type %d, addr %pM\n", viftype, vif->addr); - cancel_delayed_work_sync(&priv->hw_roc_disable_work); - mutex_lock(&priv->mutex); - iwlagn_disable_roc(priv); - if (!iwl_is_ready_rf(priv)) { IWL_WARN(priv, "Try to add interface when device not ready\n"); err = -EINVAL; @@ -1728,7 +1583,7 @@ static void iwlagn_mac_sta_notify(struct ieee80211_hw *hw, IWL_DEBUG_MAC80211(priv, "leave\n"); } -struct ieee80211_ops iwlagn_hw_ops = { +const struct ieee80211_ops iwlagn_hw_ops = { .tx = iwlagn_mac_tx, .start = iwlagn_mac_start, .stop = iwlagn_mac_stop, @@ -1754,11 +1609,7 @@ struct ieee80211_ops iwlagn_hw_ops = { .channel_switch = iwlagn_mac_channel_switch, .flush = iwlagn_mac_flush, .tx_last_beacon = iwlagn_mac_tx_last_beacon, - .remain_on_channel = iwlagn_mac_remain_on_channel, - .cancel_remain_on_channel = iwlagn_mac_cancel_remain_on_channel, .rssi_callback = iwlagn_mac_rssi_callback, - CFG80211_TESTMODE_CMD(iwlagn_mac_testmode_cmd) - CFG80211_TESTMODE_DUMP(iwlagn_mac_testmode_dump) .set_tim = iwlagn_mac_set_tim, }; diff --git a/drivers/net/wireless/iwlwifi/dvm/main.c b/drivers/net/wireless/iwlwifi/dvm/main.c index 74d7572e709..0b7f46f0b07 100644 --- a/drivers/net/wireless/iwlwifi/dvm/main.c +++ b/drivers/net/wireless/iwlwifi/dvm/main.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -128,7 +128,6 @@ int iwlagn_send_beacon_cmd(struct iwl_priv *priv) struct iwl_tx_beacon_cmd *tx_beacon_cmd; struct iwl_host_cmd cmd = { .id = REPLY_TX_BEACON, - .flags = CMD_SYNC, }; struct ieee80211_tx_info *info; u32 frame_size; @@ -252,13 +251,17 @@ static void iwl_bg_bt_runtime_config(struct work_struct *work) struct iwl_priv *priv = container_of(work, struct iwl_priv, bt_runtime_config); + mutex_lock(&priv->mutex); if (test_bit(STATUS_EXIT_PENDING, &priv->status)) - return; + goto out; /* dont send host command if rf-kill is on */ if (!iwl_is_ready_rf(priv)) - return; + goto out; + iwlagn_send_advance_bt_config(priv); +out: + mutex_unlock(&priv->mutex); } static void iwl_bg_bt_full_concurrency(struct work_struct *work) @@ -307,8 +310,7 @@ int iwl_send_statistics_request(struct iwl_priv *priv, u8 flags, bool clear) sizeof(struct iwl_statistics_cmd), &statistics_cmd); else - return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, - CMD_SYNC, + return iwl_dvm_send_cmd_pdu(priv, REPLY_STATISTICS_CMD, 0, sizeof(struct iwl_statistics_cmd), &statistics_cmd); } @@ -587,11 +589,6 @@ static void iwl_init_context(struct iwl_priv *priv, u32 ucode_flags) priv->contexts[IWL_RXON_CTX_PAN].interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_AP); - if (ucode_flags & IWL_UCODE_TLV_FLAGS_P2P) - priv->contexts[IWL_RXON_CTX_PAN].interface_modes |= - BIT(NL80211_IFTYPE_P2P_CLIENT) | - BIT(NL80211_IFTYPE_P2P_GO); - priv->contexts[IWL_RXON_CTX_PAN].ap_devtype = RXON_DEV_TYPE_CP; priv->contexts[IWL_RXON_CTX_PAN].station_devtype = RXON_DEV_TYPE_2STA; priv->contexts[IWL_RXON_CTX_PAN].unused_devtype = RXON_DEV_TYPE_P2P; @@ -615,7 +612,7 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv) priv->thermal_throttle.ct_kill_toggle = false; - if (priv->cfg->base_params->support_ct_kill_exit) { + if (priv->lib->support_ct_kill_exit) { adv_cmd.critical_temperature_enter = cpu_to_le32(priv->hw_params.ct_kill_threshold); adv_cmd.critical_temperature_exit = @@ -623,7 +620,7 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv) ret = iwl_dvm_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - CMD_SYNC, sizeof(adv_cmd), &adv_cmd); + 0, sizeof(adv_cmd), &adv_cmd); if (ret) IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); else @@ -638,7 +635,7 @@ static void iwl_rf_kill_ct_config(struct iwl_priv *priv) ret = iwl_dvm_send_cmd_pdu(priv, REPLY_CT_KILL_CONFIG_CMD, - CMD_SYNC, sizeof(cmd), &cmd); + 0, sizeof(cmd), &cmd); if (ret) IWL_ERR(priv, "REPLY_CT_KILL_CONFIG_CMD failed\n"); else @@ -674,9 +671,7 @@ static int iwlagn_send_tx_ant_config(struct iwl_priv *priv, u8 valid_tx_ant) if (IWL_UCODE_API(priv->fw->ucode_ver) > 1) { IWL_DEBUG_HC(priv, "select valid tx ant: %u\n", valid_tx_ant); - return iwl_dvm_send_cmd_pdu(priv, - TX_ANT_CONFIGURATION_CMD, - CMD_SYNC, + return iwl_dvm_send_cmd_pdu(priv, TX_ANT_CONFIGURATION_CMD, 0, sizeof(struct iwl_tx_ant_config_cmd), &tx_ant_cmd); } else { @@ -704,7 +699,7 @@ static void iwl_send_bt_config(struct iwl_priv *priv) (bt_cmd.flags == BT_COEX_DISABLE) ? "disable" : "active"); if (iwl_dvm_send_cmd_pdu(priv, REPLY_BT_CONFIG, - CMD_SYNC, sizeof(struct iwl_bt_cmd), &bt_cmd)) + 0, sizeof(struct iwl_bt_cmd), &bt_cmd)) IWL_ERR(priv, "failed to send BT Coex Config\n"); } @@ -732,10 +727,10 @@ int iwl_alive_start(struct iwl_priv *priv) } /* download priority table before any calibration request */ - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { /* Configure Bluetooth device coexistence support */ - if (priv->cfg->bt_params->bt_sco_disable) + if (priv->lib->bt_params->bt_sco_disable) priv->bt_enable_pspoll = false; else priv->bt_enable_pspoll = true; @@ -758,7 +753,7 @@ int iwl_alive_start(struct iwl_priv *priv) BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); if (ret) return ret; - } else { + } else if (priv->lib->bt_params) { /* * default is 2-wire BT coexexistence support */ @@ -854,14 +849,6 @@ void iwl_down(struct iwl_priv *priv) iwl_scan_cancel_timeout(priv, 200); - /* - * If active, scanning won't cancel it, so say it expired. - * No race since we hold the mutex here and a new one - * can't come in at this time. - */ - if (priv->ucode_loaded && priv->cur_ucode != IWL_UCODE_INIT) - ieee80211_remain_on_channel_expired(priv->hw); - exit_pending = test_and_set_bit(STATUS_EXIT_PENDING, &priv->status); @@ -873,9 +860,9 @@ void iwl_down(struct iwl_priv *priv) priv->bt_status = 0; priv->cur_rssi_ctx = NULL; priv->bt_is_sco = 0; - if (priv->cfg->bt_params) + if (priv->lib->bt_params) priv->bt_traffic_load = - priv->cfg->bt_params->bt_init_traffic_load; + priv->lib->bt_params->bt_init_traffic_load; else priv->bt_traffic_load = 0; priv->bt_full_concurrent = false; @@ -996,47 +983,12 @@ static void iwl_bg_restart(struct work_struct *data) ieee80211_restart_hw(priv->hw); else IWL_ERR(priv, - "Cannot request restart before registrating with mac80211"); + "Cannot request restart before registrating with mac80211\n"); } else { WARN_ON(1); } } - - - -void iwlagn_disable_roc(struct iwl_priv *priv) -{ - struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_PAN]; - - lockdep_assert_held(&priv->mutex); - - if (!priv->hw_roc_setup) - return; - - ctx->staging.dev_type = RXON_DEV_TYPE_P2P; - ctx->staging.filter_flags &= ~RXON_FILTER_ASSOC_MSK; - - priv->hw_roc_channel = NULL; - - memset(ctx->staging.node_addr, 0, ETH_ALEN); - - iwlagn_commit_rxon(priv, ctx); - - ctx->is_active = false; - priv->hw_roc_setup = false; -} - -static void iwlagn_disable_roc_work(struct work_struct *work) -{ - struct iwl_priv *priv = container_of(work, struct iwl_priv, - hw_roc_disable_work.work); - - mutex_lock(&priv->mutex); - iwlagn_disable_roc(priv); - mutex_unlock(&priv->mutex); -} - /***************************************************************************** * * driver setup and teardown @@ -1053,12 +1005,10 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) INIT_WORK(&priv->tx_flush, iwl_bg_tx_flush); INIT_WORK(&priv->bt_full_concurrency, iwl_bg_bt_full_concurrency); INIT_WORK(&priv->bt_runtime_config, iwl_bg_bt_runtime_config); - INIT_DELAYED_WORK(&priv->hw_roc_disable_work, - iwlagn_disable_roc_work); iwl_setup_scan_deferred_work(priv); - if (priv->cfg->bt_params) + if (priv->lib->bt_params) iwlagn_bt_setup_deferred_work(priv); init_timer(&priv->statistics_periodic); @@ -1072,7 +1022,7 @@ static void iwl_setup_deferred_work(struct iwl_priv *priv) void iwl_cancel_deferred_work(struct iwl_priv *priv) { - if (priv->cfg->bt_params) + if (priv->lib->bt_params) iwlagn_bt_cancel_deferred_work(priv); cancel_work_sync(&priv->run_time_calib_work); @@ -1082,7 +1032,6 @@ void iwl_cancel_deferred_work(struct iwl_priv *priv) cancel_work_sync(&priv->bt_full_concurrency); cancel_work_sync(&priv->bt_runtime_config); - cancel_delayed_work_sync(&priv->hw_roc_disable_work); del_timer_sync(&priv->statistics_periodic); del_timer_sync(&priv->ucode_trace); @@ -1098,16 +1047,13 @@ static int iwl_init_drv(struct iwl_priv *priv) priv->band = IEEE80211_BAND_2GHZ; - priv->plcp_delta_threshold = - priv->cfg->base_params->plcp_delta_threshold; + priv->plcp_delta_threshold = priv->lib->plcp_delta_threshold; priv->iw_mode = NL80211_IFTYPE_STATION; priv->current_ht_config.smps = IEEE80211_SMPS_STATIC; priv->missed_beacon_threshold = IWL_MISSED_BEACON_THRESHOLD_DEF; priv->agg_tids_count = 0; - priv->ucode_owner = IWL_OWNERSHIP_DRIVER; - priv->rx_statistics_jiffies = jiffies; /* Choose which receivers/antennas to use */ @@ -1116,8 +1062,8 @@ static int iwl_init_drv(struct iwl_priv *priv) iwl_init_scan_params(priv); /* init bt coex */ - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { priv->kill_ack_mask = IWLAGN_BT_KILL_ACK_MASK_DEFAULT; priv->kill_cts_mask = IWLAGN_BT_KILL_CTS_MASK_DEFAULT; priv->bt_valid = IWLAGN_BT_ALL_VALID_MSK; @@ -1172,24 +1118,11 @@ static void iwl_option_config(struct iwl_priv *priv) #else IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TRACING disabled\n"); #endif - -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE enabled\n"); -#else - IWL_INFO(priv, "CONFIG_IWLWIFI_DEVICE_TESTMODE disabled\n"); -#endif - -#ifdef CONFIG_IWLWIFI_P2P - IWL_INFO(priv, "CONFIG_IWLWIFI_P2P enabled\n"); -#else - IWL_INFO(priv, "CONFIG_IWLWIFI_P2P disabled\n"); -#endif } static int iwl_eeprom_init_hw_params(struct iwl_priv *priv) { struct iwl_nvm_data *data = priv->nvm_data; - char *debug_msg; if (data->sku_cap_11n_enable && !priv->cfg->ht_params) { @@ -1203,8 +1136,8 @@ static int iwl_eeprom_init_hw_params(struct iwl_priv *priv) return -EINVAL; } - debug_msg = "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n"; - IWL_DEBUG_INFO(priv, debug_msg, + IWL_DEBUG_INFO(priv, + "Device SKU: 24GHz %s %s, 52GHz %s %s, 11.n %s %s\n", data->sku_cap_band_24GHz_enable ? "" : "NOT", "enabled", data->sku_cap_band_52GHz_enable ? "" : "NOT", "enabled", data->sku_cap_11n_enable ? "" : "NOT", "enabled"); @@ -1264,31 +1197,37 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, switch (priv->cfg->device_family) { case IWL_DEVICE_FAMILY_1000: case IWL_DEVICE_FAMILY_100: - priv->lib = &iwl1000_lib; + priv->lib = &iwl_dvm_1000_cfg; break; case IWL_DEVICE_FAMILY_2000: + priv->lib = &iwl_dvm_2000_cfg; + break; case IWL_DEVICE_FAMILY_105: - priv->lib = &iwl2000_lib; + priv->lib = &iwl_dvm_105_cfg; break; case IWL_DEVICE_FAMILY_2030: case IWL_DEVICE_FAMILY_135: - priv->lib = &iwl2030_lib; + priv->lib = &iwl_dvm_2030_cfg; break; case IWL_DEVICE_FAMILY_5000: - priv->lib = &iwl5000_lib; + priv->lib = &iwl_dvm_5000_cfg; break; case IWL_DEVICE_FAMILY_5150: - priv->lib = &iwl5150_lib; + priv->lib = &iwl_dvm_5150_cfg; break; case IWL_DEVICE_FAMILY_6000: - case IWL_DEVICE_FAMILY_6005: case IWL_DEVICE_FAMILY_6000i: + priv->lib = &iwl_dvm_6000_cfg; + break; + case IWL_DEVICE_FAMILY_6005: + priv->lib = &iwl_dvm_6005_cfg; + break; case IWL_DEVICE_FAMILY_6050: case IWL_DEVICE_FAMILY_6150: - priv->lib = &iwl6000_lib; + priv->lib = &iwl_dvm_6050_cfg; break; case IWL_DEVICE_FAMILY_6030: - priv->lib = &iwl6030_lib; + priv->lib = &iwl_dvm_6030_cfg; break; default: break; @@ -1318,10 +1257,6 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, ucode_flags = fw->ucode_capa.flags; -#ifndef CONFIG_IWLWIFI_P2P - ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P; -#endif - if (ucode_flags & IWL_UCODE_TLV_FLAGS_PAN) { priv->sta_key_max_num = STA_KEY_MAX_NUM_PAN; trans_cfg.cmd_queue = IWL_IPAN_CMD_QUEUE_NUM; @@ -1350,8 +1285,8 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, IWL_BT_ANTENNA_COUPLING_THRESHOLD) ? true : false; - /* enable/disable bt channel inhibition */ - priv->bt_ch_announce = iwlwifi_mod_params.bt_ch_announce; + /* bt channel inhibition enabled*/ + priv->bt_ch_announce = true; IWL_DEBUG_INFO(priv, "BT channel inhibition is %s\n", (priv->bt_ch_announce) ? "On" : "Off"); @@ -1377,7 +1312,7 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, } /* Reset chip to save power until we load uCode during "up". */ - iwl_trans_stop_hw(priv->trans, false); + iwl_trans_stop_device(priv->trans); priv->nvm_data = iwl_parse_eeprom_data(priv->trans->dev, priv->cfg, priv->eeprom_blob, @@ -1410,13 +1345,12 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, iwl_set_hw_params(priv); if (!(priv->nvm_data->sku_cap_ipan_enable)) { - IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN"); + IWL_DEBUG_INFO(priv, "Your EEPROM disabled PAN\n"); ucode_flags &= ~IWL_UCODE_TLV_FLAGS_PAN; /* * if not PAN, then don't support P2P -- might be a uCode * packaging bug or due to the eeprom check above */ - ucode_flags &= ~IWL_UCODE_TLV_FLAGS_P2P; priv->sta_key_max_num = STA_KEY_MAX_NUM; trans_cfg.cmd_queue = IWL_DEFAULT_CMD_QUEUE_NUM; @@ -1446,7 +1380,6 @@ static struct iwl_op_mode *iwl_op_mode_dvm_start(struct iwl_trans *trans, ********************/ iwl_setup_deferred_work(priv); iwl_setup_rx_handlers(priv); - iwl_testmode_init(priv); iwl_power_initialize(priv); iwl_tt_initialize(priv); @@ -1483,7 +1416,6 @@ out_mac80211_unregister: iwlagn_mac_unregister(priv); out_destroy_workqueue: iwl_tt_exit(priv); - iwl_testmode_free(priv); iwl_cancel_deferred_work(priv); destroy_workqueue(priv->workqueue); priv->workqueue = NULL; @@ -1505,7 +1437,6 @@ static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode) IWL_DEBUG_INFO(priv, "*** UNLOAD DRIVER ***\n"); - iwl_testmode_free(priv); iwlagn_mac_unregister(priv); iwl_tt_exit(priv); @@ -1526,7 +1457,7 @@ static void iwl_op_mode_dvm_stop(struct iwl_op_mode *op_mode) dev_kfree_skb(priv->beacon_skb); - iwl_trans_stop_hw(priv->trans, true); + iwl_trans_op_mode_leave(priv->trans); ieee80211_free_hw(priv->hw); } @@ -1854,14 +1785,9 @@ int iwl_dump_nic_event_log(struct iwl_priv *priv, bool full_log, return pos; } -#ifdef CONFIG_IWLWIFI_DEBUG if (!(iwl_have_debug_level(IWL_DL_FW_ERRORS)) && !full_log) size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; -#else - size = (size > DEFAULT_DUMP_EVENT_LOG_ENTRIES) - ? DEFAULT_DUMP_EVENT_LOG_ENTRIES : size; -#endif IWL_ERR(priv, "Start IWL Event Log Dump: display last %u entries\n", size); @@ -1905,10 +1831,8 @@ static void iwlagn_fw_error(struct iwl_priv *priv, bool ondemand) unsigned int reload_msec; unsigned long reload_jiffies; -#ifdef CONFIG_IWLWIFI_DEBUG if (iwl_have_debug_level(IWL_DL_FW_ERRORS)) iwl_print_rx_config_cmd(priv, IWL_RXON_CTX_BSS); -#endif /* uCode is no longer loaded. */ priv->ucode_loaded = false; @@ -2090,10 +2014,10 @@ void iwlagn_lift_passive_no_rx(struct iwl_priv *priv) for (mq = 0; mq < IWLAGN_FIRST_AMPDU_QUEUE; mq++) { if (!test_bit(mq, &priv->transport_queue_stop)) { - IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d", mq); + IWL_DEBUG_TX_QUEUES(priv, "Wake queue %d\n", mq); ieee80211_wake_queue(priv->hw, mq); } else { - IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d", mq); + IWL_DEBUG_TX_QUEUES(priv, "Don't wake queue %d\n", mq); } } @@ -2110,7 +2034,7 @@ static void iwl_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) ieee80211_free_txskb(priv->hw, skb); } -static void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) +static bool iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) { struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); @@ -2120,6 +2044,19 @@ static void iwl_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) clear_bit(STATUS_RF_KILL_HW, &priv->status); wiphy_rfkill_set_hw_state(priv->hw->wiphy, state); + + return false; +} + +static void iwl_napi_add(struct iwl_op_mode *op_mode, + struct napi_struct *napi, + struct net_device *napi_dev, + int (*poll)(struct napi_struct *, int), + int weight) +{ + struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); + + ieee80211_napi_add(priv->hw, napi, napi_dev, poll, weight); } static const struct iwl_op_mode_ops iwl_dvm_ops = { @@ -2134,6 +2071,7 @@ static const struct iwl_op_mode_ops iwl_dvm_ops = { .cmd_queue_full = iwl_cmd_queue_full, .nic_config = iwl_nic_config, .wimax_active = iwl_wimax_active, + .napi_add = iwl_napi_add, }; /***************************************************************************** diff --git a/drivers/net/wireless/iwlwifi/dvm/power.c b/drivers/net/wireless/iwlwifi/dvm/power.c index bd69018d07a..f2c1439566b 100644 --- a/drivers/net/wireless/iwlwifi/dvm/power.c +++ b/drivers/net/wireless/iwlwifi/dvm/power.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -30,7 +30,6 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/init.h> #include <net/mac80211.h> #include "iwl-io.h" #include "iwl-debug.h" @@ -163,7 +162,7 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv, u8 skip; u32 slp_itrvl; - if (priv->cfg->adv_pm) { + if (priv->lib->adv_pm) { table = apm_range_2; if (period <= IWL_DTIM_RANGE_1_MAX) table = apm_range_1; @@ -217,7 +216,7 @@ static void iwl_static_sleep_cmd(struct iwl_priv *priv, cmd->flags &= ~IWL_POWER_SHADOW_REG_ENA; if (iwl_advanced_bt_coexist(priv)) { - if (!priv->cfg->bt_params->bt_sco_disable) + if (!priv->lib->bt_params->bt_sco_disable) cmd->flags |= IWL_POWER_BT_SCO_ENA; else cmd->flags &= ~IWL_POWER_BT_SCO_ENA; @@ -279,7 +278,7 @@ static int iwl_set_power(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd) le32_to_cpu(cmd->sleep_interval[3]), le32_to_cpu(cmd->sleep_interval[4])); - return iwl_dvm_send_cmd_pdu(priv, POWER_TABLE_CMD, CMD_SYNC, + return iwl_dvm_send_cmd_pdu(priv, POWER_TABLE_CMD, 0, sizeof(struct iwl_powertable_cmd), cmd); } @@ -293,7 +292,7 @@ static void iwl_power_build_cmd(struct iwl_priv *priv, if (priv->wowlan) iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, dtimper); - else if (!priv->cfg->base_params->no_idle_support && + else if (!priv->lib->no_idle_support && priv->hw->conf.flags & IEEE80211_CONF_IDLE) iwl_static_sleep_cmd(priv, cmd, IWL_POWER_INDEX_5, 20); else if (iwl_tt_is_low_power_state(priv)) { @@ -362,7 +361,7 @@ int iwl_power_set_mode(struct iwl_priv *priv, struct iwl_powertable_cmd *cmd, memcpy(&priv->power_data.sleep_cmd, cmd, sizeof(*cmd)); } else - IWL_ERR(priv, "set power fail, ret = %d", ret); + IWL_ERR(priv, "set power fail, ret = %d\n", ret); return ret; } diff --git a/drivers/net/wireless/iwlwifi/dvm/power.h b/drivers/net/wireless/iwlwifi/dvm/power.h index 7b03e1342d4..570d3a5e467 100644 --- a/drivers/net/wireless/iwlwifi/dvm/power.h +++ b/drivers/net/wireless/iwlwifi/dvm/power.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.c b/drivers/net/wireless/iwlwifi/dvm/rs.c index 907bd6e50aa..32b78a66536 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rs.c +++ b/drivers/net/wireless/iwlwifi/dvm/rs.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -24,7 +24,6 @@ * *****************************************************************************/ #include <linux/kernel.h> -#include <linux/init.h> #include <linux/skbuff.h> #include <linux/slab.h> #include <net/mac80211.h> @@ -177,46 +176,46 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, * (2.4 GHz) band. */ -static s32 expected_tpt_legacy[IWL_RATE_COUNT] = { +static const u16 expected_tpt_legacy[IWL_RATE_COUNT] = { 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0 }; -static s32 expected_tpt_siso20MHz[4][IWL_RATE_COUNT] = { +static const u16 expected_tpt_siso20MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 42, 0, 76, 102, 124, 159, 183, 193, 202}, /* Norm */ {0, 0, 0, 0, 46, 0, 82, 110, 132, 168, 192, 202, 210}, /* SGI */ {0, 0, 0, 0, 47, 0, 91, 133, 171, 242, 305, 334, 362}, /* AGG */ {0, 0, 0, 0, 52, 0, 101, 145, 187, 264, 330, 361, 390}, /* AGG+SGI */ }; -static s32 expected_tpt_siso40MHz[4][IWL_RATE_COUNT] = { +static const u16 expected_tpt_siso40MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */ {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */ {0, 0, 0, 0, 94, 0, 177, 249, 313, 423, 512, 550, 586}, /* AGG */ {0, 0, 0, 0, 104, 0, 193, 270, 338, 454, 545, 584, 620}, /* AGG+SGI */ }; -static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = { +static const u16 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 74, 0, 123, 155, 179, 214, 236, 244, 251}, /* Norm */ {0, 0, 0, 0, 81, 0, 131, 164, 188, 223, 243, 251, 257}, /* SGI */ {0, 0, 0, 0, 89, 0, 167, 235, 296, 402, 488, 526, 560}, /* AGG */ {0, 0, 0, 0, 97, 0, 182, 255, 320, 431, 520, 558, 593}, /* AGG+SGI*/ }; -static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = { +static const u16 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */ {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */ {0, 0, 0, 0, 171, 0, 305, 410, 496, 634, 731, 771, 805}, /* AGG */ {0, 0, 0, 0, 186, 0, 329, 439, 527, 667, 764, 803, 838}, /* AGG+SGI */ }; -static s32 expected_tpt_mimo3_20MHz[4][IWL_RATE_COUNT] = { +static const u16 expected_tpt_mimo3_20MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 99, 0, 153, 186, 208, 239, 256, 263, 268}, /* Norm */ {0, 0, 0, 0, 106, 0, 162, 194, 215, 246, 262, 268, 273}, /* SGI */ {0, 0, 0, 0, 134, 0, 249, 346, 431, 574, 685, 732, 775}, /* AGG */ {0, 0, 0, 0, 148, 0, 272, 376, 465, 614, 727, 775, 818}, /* AGG+SGI */ }; -static s32 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = { +static const u16 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = { {0, 0, 0, 0, 152, 0, 211, 239, 255, 279, 290, 294, 297}, /* Norm */ {0, 0, 0, 0, 160, 0, 219, 245, 261, 284, 294, 297, 300}, /* SGI */ {0, 0, 0, 0, 254, 0, 443, 584, 695, 868, 984, 1030, 1070}, /* AGG */ @@ -351,12 +350,6 @@ static void rs_program_fix_rate(struct iwl_priv *priv, lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - /* testmode has higher priority to overwirte the fixed rate */ - if (priv->tm_fixed_rate) - lq_sta->dbg_fixed_rate = priv->tm_fixed_rate; -#endif - IWL_DEBUG_RATE(priv, "sta_id %d rate 0x%X\n", lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate); @@ -419,23 +412,18 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_priv *priv, load = rs_tl_get_load(lq_data, tid); - if ((iwlwifi_mod_params.auto_agg) || (load > IWL_AGG_LOAD_THRESHOLD)) { - IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n", - sta->addr, tid); - ret = ieee80211_start_tx_ba_session(sta, tid, 5000); - if (ret == -EAGAIN) { - /* - * driver and mac80211 is out of sync - * this might be cause by reloading firmware - * stop the tx ba session here - */ - IWL_ERR(priv, "Fail start Tx agg on tid: %d\n", - tid); - ieee80211_stop_tx_ba_session(sta, tid); - } - } else { - IWL_DEBUG_HT(priv, "Aggregation not enabled for tid %d " - "because load = %u\n", tid, load); + IWL_DEBUG_HT(priv, "Starting Tx agg: STA: %pM tid: %d\n", + sta->addr, tid); + ret = ieee80211_start_tx_ba_session(sta, tid, 5000); + if (ret == -EAGAIN) { + /* + * driver and mac80211 is out of sync + * this might be cause by reloading firmware + * stop the tx ba session here + */ + IWL_ERR(priv, "Fail start Tx agg on tid: %d\n", + tid); + ieee80211_stop_tx_ba_session(sta, tid); } return ret; } @@ -1083,12 +1071,7 @@ done: if (sta && sta->supp_rates[sband->band]) rs_rate_scale_perform(priv, skb, sta, lq_sta); -#if defined(CONFIG_MAC80211_DEBUGFS) && defined(CONFIG_IWLWIFI_DEVICE_TESTMODE) - if ((priv->tm_fixed_rate) && - (priv->tm_fixed_rate != lq_sta->dbg_fixed_rate)) - rs_program_fix_rate(priv, lq_sta); -#endif - if (priv->cfg->bt_params && priv->cfg->bt_params->advanced_bt_coexist) + if (priv->lib->bt_params && priv->lib->bt_params->advanced_bt_coexist) rs_bt_update_lq(priv, ctx, lq_sta); } @@ -1128,7 +1111,7 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta, struct iwl_scale_tbl_info *tbl) { /* Used to choose among HT tables */ - s32 (*ht_tbl_pointer)[IWL_RATE_COUNT]; + const u16 (*ht_tbl_pointer)[IWL_RATE_COUNT]; /* Check for invalid LQ type */ if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) { @@ -1190,9 +1173,8 @@ static s32 rs_get_best_rate(struct iwl_priv *priv, &(lq_sta->lq_info[lq_sta->active_tbl]); s32 active_sr = active_tbl->win[index].success_ratio; s32 active_tpt = active_tbl->expected_tpt[index]; - /* expected "search" throughput */ - s32 *tpt_tbl = tbl->expected_tpt; + const u16 *tpt_tbl = tbl->expected_tpt; s32 new_rate, high, low, start_hi; u16 high_low; @@ -1471,7 +1453,7 @@ static int rs_move_legacy_other(struct iwl_priv *priv, tbl->action = IWL_LEGACY_SWITCH_SISO; break; default: - IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + IWL_ERR(priv, "Invalid BT load %d\n", priv->bt_traffic_load); break; } @@ -1646,7 +1628,7 @@ static int rs_move_siso_to_other(struct iwl_priv *priv, tbl->action = IWL_SISO_SWITCH_ANTENNA1; break; default: - IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + IWL_ERR(priv, "Invalid BT load %d\n", priv->bt_traffic_load); break; } @@ -1817,7 +1799,7 @@ static int rs_move_mimo2_to_other(struct iwl_priv *priv, tbl->action = IWL_MIMO2_SWITCH_SISO_A; break; default: - IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + IWL_ERR(priv, "Invalid BT load %d\n", priv->bt_traffic_load); break; } @@ -1987,7 +1969,7 @@ static int rs_move_mimo3_to_other(struct iwl_priv *priv, tbl->action = IWL_MIMO3_SWITCH_SISO_A; break; default: - IWL_ERR(priv, "Invalid BT load %d", priv->bt_traffic_load); + IWL_ERR(priv, "Invalid BT load %d\n", priv->bt_traffic_load); break; } @@ -2727,7 +2709,7 @@ static void rs_initialize_lq(struct iwl_priv *priv, rs_set_expected_tpt_table(lq_sta, tbl); rs_fill_link_cmd(NULL, lq_sta, rate); priv->stations[lq_sta->lq.sta_id].lq = &lq_sta->lq; - iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, CMD_SYNC, true); + iwl_send_lq_cmd(priv, ctx, &lq_sta->lq, 0, true); } static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, @@ -2799,7 +2781,7 @@ static void rs_get_rate(void *priv_r, struct ieee80211_sta *sta, void *priv_sta, info->control.rates[0].flags = 0; } info->control.rates[0].idx = rate_idx; - + info->control.rates[0].count = 1; } static void *rs_alloc_sta(void *priv_rate, struct ieee80211_sta *sta, @@ -2842,9 +2824,6 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i lq_sta->flush_timer = 0; lq_sta->supp_rates = sta->supp_rates[sband->band]; - for (j = 0; j < LQ_SIZE; j++) - for (i = 0; i < IWL_RATE_COUNT; i++) - rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]); IWL_DEBUG_RATE(priv, "LQ: *** rate scale station global init for station %d ***\n", sta_id); @@ -2913,9 +2892,6 @@ void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, u8 sta_i if (sband->band == IEEE80211_BAND_5GHZ) lq_sta->last_txrate_idx += IWL_FIRST_OFDM_RATE; lq_sta->is_agg = 0; -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - priv->tm_fixed_rate = 0; -#endif #ifdef CONFIG_MAC80211_DEBUGFS lq_sta->dbg_fixed_rate = 0; #endif @@ -3064,11 +3040,11 @@ static void rs_fill_link_cmd(struct iwl_priv *priv, * overwrite if needed, pass aggregation time limit * to uCode in uSec */ - if (priv && priv->cfg->bt_params && - priv->cfg->bt_params->agg_time_limit && + if (priv && priv->lib->bt_params && + priv->lib->bt_params->agg_time_limit && priv->bt_traffic_load >= IWL_BT_COEX_TRAFFIC_LOAD_HIGH) lq_cmd->agg_params.agg_time_limit = - cpu_to_le16(priv->cfg->bt_params->agg_time_limit); + cpu_to_le16(priv->lib->bt_params->agg_time_limit); } static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) @@ -3338,11 +3314,12 @@ static void rs_remove_debugfs(void *priv, void *priv_sta) * station is added we ignore it. */ static void rs_rate_init_stub(void *priv_r, struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *priv_sta) + struct cfg80211_chan_def *chandef, + struct ieee80211_sta *sta, void *priv_sta) { } -static struct rate_control_ops rs_ops = { - .module = NULL, + +static const struct rate_control_ops rs_ops = { .name = RS_NAME, .tx_status = rs_tx_status, .get_rate = rs_get_rate, diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.h b/drivers/net/wireless/iwlwifi/dvm/rs.h index 5d83cab22d6..f6bd25cad20 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rs.h +++ b/drivers/net/wireless/iwlwifi/dvm/rs.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -315,7 +315,7 @@ struct iwl_scale_tbl_info { u8 is_dup; /* 1 = duplicated data streams */ u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */ u8 max_search; /* maximun number of tables we can search */ - s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ + const u16 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ u32 current_rate; /* rate_n_flags, uCode API format */ struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ }; @@ -389,13 +389,6 @@ struct iwl_lq_sta { u8 last_bt_traffic; }; -static inline u8 num_of_ant(u8 mask) -{ - return !!((mask) & ANT_A) + - !!((mask) & ANT_B) + - !!((mask) & ANT_C); -} - static inline u8 first_antenna(u8 mask) { if (mask & ANT_A) @@ -407,8 +400,8 @@ static inline u8 first_antenna(u8 mask) /* Initialize station's rate scaling information after adding station */ -extern void iwl_rs_rate_init(struct iwl_priv *priv, - struct ieee80211_sta *sta, u8 sta_id); +void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta, + u8 sta_id); /** * iwl_rate_control_register - Register the rate control algorithm callbacks @@ -420,7 +413,7 @@ extern void iwl_rs_rate_init(struct iwl_priv *priv, * ieee80211_register_hw * */ -extern int iwlagn_rate_control_register(void); +int iwlagn_rate_control_register(void); /** * iwl_rate_control_unregister - Unregister the rate control callbacks @@ -428,6 +421,6 @@ extern int iwlagn_rate_control_register(void); * This should be called after calling ieee80211_unregister_hw, but before * the driver is unloaded. */ -extern void iwlagn_rate_control_unregister(void); +void iwlagn_rate_control_unregister(void); #endif /* __iwl_agn__rs__ */ diff --git a/drivers/net/wireless/iwlwifi/dvm/rx.c b/drivers/net/wireless/iwlwifi/dvm/rx.c index a4eed2055fd..debec963c61 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rx.c +++ b/drivers/net/wireless/iwlwifi/dvm/rx.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portionhelp of the ieee80211 subsystem header files. @@ -39,7 +39,7 @@ #define IWL_CMD_ENTRY(x) [x] = #x -const char *iwl_dvm_cmd_strings[REPLY_MAX] = { +const char *const iwl_dvm_cmd_strings[REPLY_MAX] = { IWL_CMD_ENTRY(REPLY_ALIVE), IWL_CMD_ENTRY(REPLY_ERROR), IWL_CMD_ENTRY(REPLY_ECHO), @@ -205,8 +205,7 @@ static int iwlagn_rx_pm_debug_statistics_notif(struct iwl_priv *priv, struct iwl_device_cmd *cmd) { struct iwl_rx_packet *pkt = rxb_addr(rxb); - u32 __maybe_unused len = - le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; + u32 __maybe_unused len = iwl_rx_packet_len(pkt); IWL_DEBUG_RADIO(priv, "Dumping %d bytes of unhandled " "notification for PM_DEBUG_STATISTIC_NOTIFIC:\n", len); iwl_print_hex_dump(priv, IWL_DL_RADIO, pkt->data, len); @@ -335,8 +334,7 @@ static void iwlagn_recover_from_statistics(struct iwl_priv *priv, if (msecs < 99) return; - if (iwlwifi_mod_params.plcp_check && - !iwlagn_good_plcp_health(priv, cur_ofdm, cur_ofdm_ht, msecs)) + if (!iwlagn_good_plcp_health(priv, cur_ofdm, cur_ofdm_ht, msecs)) iwl_force_rf_reset(priv, false); } @@ -458,7 +456,7 @@ static int iwlagn_rx_statistics(struct iwl_priv *priv, const int reg_recalib_period = 60; int change; struct iwl_rx_packet *pkt = rxb_addr(rxb); - u32 len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; + u32 len = iwl_rx_packet_payload_len(pkt); __le32 *flag; struct statistics_general_common *common; struct statistics_rx_non_phy *rx_non_phy; @@ -468,8 +466,6 @@ static int iwlagn_rx_statistics(struct iwl_priv *priv, struct statistics_tx *tx; struct statistics_bt_activity *bt_activity; - len -= sizeof(struct iwl_cmd_header); /* skip header */ - IWL_DEBUG_RX(priv, "Statistics notification received (%d bytes).\n", len); @@ -790,7 +786,7 @@ static void iwlagn_pass_packet_to_mac80211(struct iwl_priv *priv, memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); - ieee80211_rx_ni(priv->hw, skb); + ieee80211_rx(priv->hw, skb); } static u32 iwlagn_translate_rx_status(struct iwl_priv *priv, u32 decrypt_in) @@ -1102,7 +1098,7 @@ void iwl_setup_rx_handlers(struct iwl_priv *priv) iwl_notification_wait_init(&priv->notif_wait); /* Set up BT Rx handlers */ - if (priv->cfg->bt_params) + if (priv->lib->bt_params) iwlagn_bt_rx_handler_setup(priv); } @@ -1120,32 +1116,17 @@ int iwl_rx_dispatch(struct iwl_op_mode *op_mode, struct iwl_rx_cmd_buffer *rxb, */ iwl_notification_wait_notify(&priv->notif_wait, pkt); -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - /* - * RX data may be forwarded to userspace in one - * of two cases: the user owns the fw through testmode or when - * the user requested to monitor the rx w/o affecting the regular flow. - * In these cases the iwl_test object will handle forwarding the rx - * data to user space. - * Note that if the ownership flag != IWL_OWNERSHIP_TM the flow - * continues. - */ - iwl_test_rx(&priv->tst, rxb); -#endif - - if (priv->ucode_owner != IWL_OWNERSHIP_TM) { - /* Based on type of command response or notification, - * handle those that need handling via function in - * rx_handlers table. See iwl_setup_rx_handlers() */ - if (priv->rx_handlers[pkt->hdr.cmd]) { - priv->rx_handlers_stats[pkt->hdr.cmd]++; - err = priv->rx_handlers[pkt->hdr.cmd] (priv, rxb, cmd); - } else { - /* No handling needed */ - IWL_DEBUG_RX(priv, "No handler needed for %s, 0x%02x\n", - iwl_dvm_get_cmd_string(pkt->hdr.cmd), - pkt->hdr.cmd); - } + /* Based on type of command response or notification, + * handle those that need handling via function in + * rx_handlers table. See iwl_setup_rx_handlers() */ + if (priv->rx_handlers[pkt->hdr.cmd]) { + priv->rx_handlers_stats[pkt->hdr.cmd]++; + err = priv->rx_handlers[pkt->hdr.cmd] (priv, rxb, cmd); + } else { + /* No handling needed */ + IWL_DEBUG_RX(priv, "No handler needed for %s, 0x%02x\n", + iwl_dvm_get_cmd_string(pkt->hdr.cmd), + pkt->hdr.cmd); } return err; } diff --git a/drivers/net/wireless/iwlwifi/dvm/rxon.c b/drivers/net/wireless/iwlwifi/dvm/rxon.c index 707446fa00b..6dc5dd3ced4 100644 --- a/drivers/net/wireless/iwlwifi/dvm/rxon.c +++ b/drivers/net/wireless/iwlwifi/dvm/rxon.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -104,7 +104,7 @@ static int iwlagn_disable_bss(struct iwl_priv *priv, send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, - CMD_SYNC, sizeof(*send), send); + 0, sizeof(*send), send); send->filter_flags = old_filter; @@ -134,7 +134,7 @@ static int iwlagn_disable_pan(struct iwl_priv *priv, send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; send->dev_type = RXON_DEV_TYPE_P2P; ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, - CMD_SYNC, sizeof(*send), send); + 0, sizeof(*send), send); send->filter_flags = old_filter; send->dev_type = old_dev_type; @@ -160,7 +160,7 @@ static int iwlagn_disconn_pan(struct iwl_priv *priv, int ret; send->filter_flags &= ~RXON_FILTER_ASSOC_MSK; - ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC, + ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, 0, sizeof(*send), send); send->filter_flags = old_filter; @@ -189,7 +189,7 @@ static void iwlagn_update_qos(struct iwl_priv *priv, ctx->qos_data.qos_active, ctx->qos_data.def_qos_parm.qos_flags); - ret = iwl_dvm_send_cmd_pdu(priv, ctx->qos_cmd, CMD_SYNC, + ret = iwl_dvm_send_cmd_pdu(priv, ctx->qos_cmd, 0, sizeof(struct iwl_qosparam_cmd), &ctx->qos_data.def_qos_parm); if (ret) @@ -353,7 +353,7 @@ static int iwl_send_rxon_timing(struct iwl_priv *priv, le16_to_cpu(ctx->timing.atim_window)); return iwl_dvm_send_cmd_pdu(priv, ctx->rxon_timing_cmd, - CMD_SYNC, sizeof(ctx->timing), &ctx->timing); + 0, sizeof(ctx->timing), &ctx->timing); } static int iwlagn_rxon_disconn(struct iwl_priv *priv, @@ -495,7 +495,7 @@ static int iwlagn_rxon_connect(struct iwl_priv *priv, * Associated RXON doesn't clear the station table in uCode, * so we don't need to restore stations etc. after this. */ - ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, CMD_SYNC, + ret = iwl_dvm_send_cmd_pdu(priv, ctx->rxon_cmd, 0, sizeof(struct iwl_rxon_cmd), &ctx->staging); if (ret) { IWL_ERR(priv, "Error setting new RXON (%d)\n", ret); @@ -564,11 +564,7 @@ int iwlagn_set_pan_params(struct iwl_priv *priv) cmd.slots[0].type = 0; /* BSS */ cmd.slots[1].type = 1; /* PAN */ - if (priv->hw_roc_setup) { - /* both contexts must be used for this to happen */ - slot1 = IWL_MIN_SLOT_TIME; - slot0 = 3000; - } else if (ctx_bss->vif && ctx_pan->vif) { + if (ctx_bss->vif && ctx_pan->vif) { int bcnint = ctx_pan->beacon_int; int dtim = ctx_pan->vif->bss_conf.dtim_period ?: 1; @@ -614,7 +610,7 @@ int iwlagn_set_pan_params(struct iwl_priv *priv) cmd.slots[0].width = cpu_to_le16(slot0); cmd.slots[1].width = cpu_to_le16(slot1); - ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WIPAN_PARAMS, CMD_SYNC, + ret = iwl_dvm_send_cmd_pdu(priv, REPLY_WIPAN_PARAMS, 0, sizeof(cmd), &cmd); if (ret) IWL_ERR(priv, "Error setting PAN parameters (%d)\n", ret); @@ -827,7 +823,7 @@ static int iwl_check_rxon_cmd(struct iwl_priv *priv, if ((rxon->flags & (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) == (RXON_FLG_CCK_MSK | RXON_FLG_AUTO_DETECT_MSK)) { - IWL_WARN(priv, "CCK and auto detect"); + IWL_WARN(priv, "CCK and auto detect\n"); errors |= BIT(8); } @@ -1072,13 +1068,6 @@ int iwlagn_commit_rxon(struct iwl_priv *priv, struct iwl_rxon_context *ctx) /* recalculate basic rates */ iwl_calc_basic_rates(priv, ctx); - /* - * force CTS-to-self frames protection if RTS-CTS is not preferred - * one aggregation protection method - */ - if (!priv->hw_params.use_rts_for_aggregation) - ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; - if ((ctx->vif && ctx->vif->bss_conf.use_short_slot) || !(ctx->staging.flags & RXON_FLG_BAND_24G_MSK)) ctx->staging.flags |= RXON_FLG_SHORT_SLOT_MSK; @@ -1378,7 +1367,7 @@ static void iwlagn_chain_noise_reset(struct iwl_priv *priv) struct iwl_chain_noise_data *data = &priv->chain_noise_data; int ret; - if (!(priv->calib_disabled & IWL_CHAIN_NOISE_CALIB_DISABLED)) + if (priv->calib_disabled & IWL_CHAIN_NOISE_CALIB_DISABLED) return; if ((data->state == IWL_CHAIN_NOISE_ALIVE) && @@ -1399,7 +1388,7 @@ static void iwlagn_chain_noise_reset(struct iwl_priv *priv) priv->phy_calib_chain_noise_reset_cmd); ret = iwl_dvm_send_cmd_pdu(priv, REPLY_PHY_CALIBRATION_CMD, - CMD_SYNC, sizeof(cmd), &cmd); + 0, sizeof(cmd), &cmd); if (ret) IWL_ERR(priv, "Could not send REPLY_PHY_CALIBRATION_CMD\n"); @@ -1484,11 +1473,6 @@ void iwlagn_bss_info_changed(struct ieee80211_hw *hw, else ctx->staging.flags &= ~RXON_FLG_TGG_PROTECT_MSK; - if (bss_conf->use_cts_prot) - ctx->staging.flags |= RXON_FLG_SELF_CTS_EN; - else - ctx->staging.flags &= ~RXON_FLG_SELF_CTS_EN; - memcpy(ctx->staging.bssid_addr, bss_conf->bssid, ETH_ALEN); if (vif->type == NL80211_IFTYPE_AP || diff --git a/drivers/net/wireless/iwlwifi/dvm/scan.c b/drivers/net/wireless/iwlwifi/dvm/scan.c index d69b5586671..43bef901e8f 100644 --- a/drivers/net/wireless/iwlwifi/dvm/scan.c +++ b/drivers/net/wireless/iwlwifi/dvm/scan.c @@ -2,7 +2,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -59,7 +59,7 @@ static int iwl_send_scan_abort(struct iwl_priv *priv) int ret; struct iwl_host_cmd cmd = { .id = REPLY_SCAN_ABORT_CMD, - .flags = CMD_SYNC | CMD_WANT_SKB, + .flags = CMD_WANT_SKB, }; __le32 *status; @@ -100,9 +100,6 @@ static void iwl_complete_scan(struct iwl_priv *priv, bool aborted) ieee80211_scan_completed(priv->hw, aborted); } - if (priv->scan_type == IWL_SCAN_ROC) - iwl_scan_roc_expired(priv); - priv->scan_type = IWL_SCAN_NORMAL; priv->scan_vif = NULL; priv->scan_request = NULL; @@ -130,9 +127,6 @@ static void iwl_process_scan_complete(struct iwl_priv *priv) goto out_settings; } - if (priv->scan_type == IWL_SCAN_ROC) - iwl_scan_roc_expired(priv); - if (priv->scan_type != IWL_SCAN_NORMAL && !aborted) { int err; @@ -284,12 +278,6 @@ static int iwl_rx_scan_start_notif(struct iwl_priv *priv, le32_to_cpu(notif->tsf_low), notif->status, notif->beacon_timer); - if (priv->scan_type == IWL_SCAN_ROC && - !priv->hw_roc_start_notified) { - ieee80211_ready_on_channel(priv->hw); - priv->hw_roc_start_notified = true; - } - return 0; } @@ -556,7 +544,7 @@ static int iwl_get_channels_for_scan(struct iwl_priv *priv, channel = chan->hw_value; scan_ch->channel = cpu_to_le16(channel); - if (!is_active || (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)) + if (!is_active || (chan->flags & IEEE80211_CHAN_NO_IR)) scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; else scan_ch->type = SCAN_CHANNEL_TYPE_ACTIVE; @@ -651,7 +639,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) struct iwl_host_cmd cmd = { .id = REPLY_SCAN_CMD, .len = { sizeof(struct iwl_scan_cmd), }, - .flags = CMD_SYNC, }; struct iwl_scan_cmd *scan; struct iwl_rxon_context *ctx = &priv->contexts[IWL_RXON_CTX_BSS]; @@ -697,8 +684,7 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) scan->quiet_plcp_th = IWL_PLCP_QUIET_THRESH; scan->quiet_time = IWL_ACTIVE_QUIET_TIME; - if (priv->scan_type != IWL_SCAN_ROC && - iwl_is_any_associated(priv)) { + if (iwl_is_any_associated(priv)) { u16 interval = 0; u32 extra; u32 suspend_time = 100; @@ -706,9 +692,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) IWL_DEBUG_INFO(priv, "Scanning while associated...\n"); switch (priv->scan_type) { - case IWL_SCAN_ROC: - WARN_ON(1); - break; case IWL_SCAN_RADIO_RESET: interval = 0; break; @@ -728,11 +711,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) scan->suspend_time = cpu_to_le32(scan_suspend_time); IWL_DEBUG_SCAN(priv, "suspend_time 0x%X beacon interval %d\n", scan_suspend_time, interval); - } else if (priv->scan_type == IWL_SCAN_ROC) { - scan->suspend_time = 0; - scan->max_out_time = 0; - scan->quiet_time = 0; - scan->quiet_plcp_th = 0; } switch (priv->scan_type) { @@ -774,9 +752,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) } else IWL_DEBUG_SCAN(priv, "Start passive scan.\n"); break; - case IWL_SCAN_ROC: - IWL_DEBUG_SCAN(priv, "Start ROC scan.\n"); - break; } scan->tx_cmd.tx_flags = TX_CMD_FLG_SEQ_CTL_MSK; @@ -801,8 +776,8 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) * Internal scans are passive, so we can indiscriminately set * the BT ignore flag on 2.4 GHz since it applies to TX only. */ - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) scan->tx_cmd.tx_flags |= TX_CMD_FLG_IGNORE_BT; break; case IEEE80211_BAND_5GHZ: @@ -844,8 +819,8 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) band = priv->scan_band; if (band == IEEE80211_BAND_2GHZ && - priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { /* transmit 2.4 GHz probes only on first antenna */ scan_tx_antennas = first_antenna(scan_tx_antennas); } @@ -873,8 +848,8 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) rx_ant = first_antenna(active_chains); } - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist && + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist && priv->bt_full_concurrent) { /* operated as 1x1 in full concurrency mode */ rx_ant = first_antenna(rx_ant); @@ -898,7 +873,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) scan_cmd_size - sizeof(*scan)); break; case IWL_SCAN_RADIO_RESET: - case IWL_SCAN_ROC: /* use bcast addr, will not be transmitted but must be valid */ cmd_len = iwl_fill_probe_req( (struct ieee80211_mgmt *)scan->data, @@ -926,46 +900,6 @@ static int iwlagn_request_scan(struct iwl_priv *priv, struct ieee80211_vif *vif) is_active, n_probes, (void *)&scan->data[cmd_len]); break; - case IWL_SCAN_ROC: { - struct iwl_scan_channel *scan_ch; - int n_chan, i; - u16 dwell; - - dwell = iwl_limit_dwell(priv, priv->hw_roc_duration); - n_chan = DIV_ROUND_UP(priv->hw_roc_duration, dwell); - - scan->channel_count = n_chan; - - scan_ch = (void *)&scan->data[cmd_len]; - - for (i = 0; i < n_chan; i++) { - scan_ch->type = SCAN_CHANNEL_TYPE_PASSIVE; - scan_ch->channel = - cpu_to_le16(priv->hw_roc_channel->hw_value); - - if (i == n_chan - 1) - dwell = priv->hw_roc_duration - i * dwell; - - scan_ch->active_dwell = - scan_ch->passive_dwell = cpu_to_le16(dwell); - - /* Set txpower levels to defaults */ - scan_ch->dsp_atten = 110; - - /* NOTE: if we were doing 6Mb OFDM for scans we'd use - * power level: - * scan_ch->tx_gain = ((1 << 5) | (2 << 3)) | 3; - */ - if (priv->hw_roc_channel->band == IEEE80211_BAND_5GHZ) - scan_ch->tx_gain = ((1 << 5) | (3 << 3)) | 3; - else - scan_ch->tx_gain = ((1 << 5) | (5 << 3)); - - scan_ch++; - } - } - - break; } if (scan->channel_count == 0) { @@ -1035,7 +969,6 @@ int __must_check iwl_scan_initiate(struct iwl_priv *priv, IWL_DEBUG_SCAN(priv, "Starting %sscan...\n", scan_type == IWL_SCAN_NORMAL ? "" : - scan_type == IWL_SCAN_ROC ? "remain-on-channel " : "internal short "); set_bit(STATUS_SCANNING, &priv->status); @@ -1149,40 +1082,3 @@ void iwl_cancel_scan_deferred_work(struct iwl_priv *priv) mutex_unlock(&priv->mutex); } } - -void iwl_scan_roc_expired(struct iwl_priv *priv) -{ - /* - * The status bit should be set here, to prevent a race - * where the atomic_read returns 1, but before the execution continues - * iwl_scan_offchannel_skb_status() checks if the status bit is set - */ - set_bit(STATUS_SCAN_ROC_EXPIRED, &priv->status); - - if (atomic_read(&priv->num_aux_in_flight) == 0) { - ieee80211_remain_on_channel_expired(priv->hw); - priv->hw_roc_channel = NULL; - schedule_delayed_work(&priv->hw_roc_disable_work, - 10 * HZ); - - clear_bit(STATUS_SCAN_ROC_EXPIRED, &priv->status); - } else { - IWL_DEBUG_SCAN(priv, "ROC done with %d frames in aux\n", - atomic_read(&priv->num_aux_in_flight)); - } -} - -void iwl_scan_offchannel_skb(struct iwl_priv *priv) -{ - WARN_ON(!priv->hw_roc_start_notified); - atomic_inc(&priv->num_aux_in_flight); -} - -void iwl_scan_offchannel_skb_status(struct iwl_priv *priv) -{ - if (atomic_dec_return(&priv->num_aux_in_flight) == 0 && - test_bit(STATUS_SCAN_ROC_EXPIRED, &priv->status)) { - IWL_DEBUG_SCAN(priv, "0 aux frames. Calling ROC expired\n"); - iwl_scan_roc_expired(priv); - } -} diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c index c3c13ce96eb..6ec86adbe4a 100644 --- a/drivers/net/wireless/iwlwifi/dvm/sta.c +++ b/drivers/net/wireless/iwlwifi/dvm/sta.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -39,7 +39,7 @@ static int iwl_sta_ucode_activate(struct iwl_priv *priv, u8 sta_id) lockdep_assert_held(&priv->sta_lock); if (sta_id >= IWLAGN_STATION_COUNT) { - IWL_ERR(priv, "invalid sta_id %u", sta_id); + IWL_ERR(priv, "invalid sta_id %u\n", sta_id); return -EINVAL; } if (!(priv->stations[sta_id].used & IWL_STA_DRIVER_ACTIVE)) @@ -165,7 +165,7 @@ int iwl_send_add_sta(struct iwl_priv *priv, iwl_free_resp(&cmd); if (cmd.handler_status) - IWL_ERR(priv, "%s - error in the CMD response %d", __func__, + IWL_ERR(priv, "%s - error in the CMD response %d\n", __func__, cmd.handler_status); return cmd.handler_status; @@ -261,7 +261,7 @@ int iwl_sta_update_ht(struct iwl_priv *priv, struct iwl_rxon_context *ctx, cmd.station_flags = flags; cmd.sta.sta_id = sta_id; - return iwl_send_add_sta(priv, &cmd, CMD_SYNC); + return iwl_send_add_sta(priv, &cmd, 0); } static void iwl_set_ht_add_station(struct iwl_priv *priv, u8 index, @@ -413,7 +413,7 @@ int iwl_add_station_common(struct iwl_priv *priv, struct iwl_rxon_context *ctx, spin_unlock_bh(&priv->sta_lock); /* Add station to device's station table */ - ret = iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + ret = iwl_send_add_sta(priv, &sta_cmd, 0); if (ret) { spin_lock_bh(&priv->sta_lock); IWL_ERR(priv, "Adding station %pM failed.\n", @@ -456,7 +456,6 @@ static int iwl_send_remove_station(struct iwl_priv *priv, struct iwl_host_cmd cmd = { .id = REPLY_REMOVE_STA, .len = { sizeof(struct iwl_rem_sta_cmd), }, - .flags = CMD_SYNC, .data = { &rm_sta_cmd, }, }; @@ -590,6 +589,7 @@ void iwl_deactivate_station(struct iwl_priv *priv, const u8 sta_id, sizeof(priv->tid_data[sta_id][tid])); priv->stations[sta_id].used &= ~IWL_STA_DRIVER_ACTIVE; + priv->stations[sta_id].used &= ~IWL_STA_UCODE_INPROGRESS; priv->num_stations--; @@ -739,7 +739,7 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) send_lq = true; } spin_unlock_bh(&priv->sta_lock); - ret = iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + ret = iwl_send_add_sta(priv, &sta_cmd, 0); if (ret) { spin_lock_bh(&priv->sta_lock); IWL_ERR(priv, "Adding station %pM failed.\n", @@ -755,8 +755,7 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx) * current LQ command */ if (send_lq) - iwl_send_lq_cmd(priv, ctx, &lq, - CMD_SYNC, true); + iwl_send_lq_cmd(priv, ctx, &lq, 0, true); spin_lock_bh(&priv->sta_lock); priv->stations[i].used &= ~IWL_STA_UCODE_INPROGRESS; } @@ -967,7 +966,7 @@ int iwlagn_add_bssid_station(struct iwl_priv *priv, return -ENOMEM; } - ret = iwl_send_lq_cmd(priv, ctx, link_cmd, CMD_SYNC, true); + ret = iwl_send_lq_cmd(priv, ctx, link_cmd, 0, true); if (ret) IWL_ERR(priv, "Link quality command failed (%d)\n", ret); @@ -998,7 +997,6 @@ static int iwl_send_static_wepkey_cmd(struct iwl_priv *priv, struct iwl_host_cmd cmd = { .id = ctx->wep_key_cmd, .data = { wep_cmd, }, - .flags = CMD_SYNC, }; might_sleep(); @@ -1247,7 +1245,7 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv, sta_cmd.sta.modify_mask = STA_MODIFY_KEY_MASK; sta_cmd.mode = STA_CONTROL_MODIFY_MSK; - return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + return iwl_send_add_sta(priv, &sta_cmd, 0); } int iwl_set_dynamic_key(struct iwl_priv *priv, @@ -1283,13 +1281,13 @@ int iwl_set_dynamic_key(struct iwl_priv *priv, ieee80211_get_key_rx_seq(keyconf, 0, &seq); ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); ret = iwlagn_send_sta_key(priv, keyconf, sta_id, - seq.tkip.iv32, p1k, CMD_SYNC); + seq.tkip.iv32, p1k, 0); break; case WLAN_CIPHER_SUITE_CCMP: case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP104: ret = iwlagn_send_sta_key(priv, keyconf, sta_id, - 0, NULL, CMD_SYNC); + 0, NULL, 0); break; default: IWL_ERR(priv, "Unknown cipher %x\n", keyconf->cipher); @@ -1408,7 +1406,7 @@ int iwl_sta_tx_modify_enable_tid(struct iwl_priv *priv, int sta_id, int tid) memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); spin_unlock_bh(&priv->sta_lock); - return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + return iwl_send_add_sta(priv, &sta_cmd, 0); } int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, @@ -1432,7 +1430,7 @@ int iwl_sta_rx_agg_start(struct iwl_priv *priv, struct ieee80211_sta *sta, memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); spin_unlock_bh(&priv->sta_lock); - return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + return iwl_send_add_sta(priv, &sta_cmd, 0); } int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, @@ -1457,7 +1455,7 @@ int iwl_sta_rx_agg_stop(struct iwl_priv *priv, struct ieee80211_sta *sta, memcpy(&sta_cmd, &priv->stations[sta_id].sta, sizeof(struct iwl_addsta_cmd)); spin_unlock_bh(&priv->sta_lock); - return iwl_send_add_sta(priv, &sta_cmd, CMD_SYNC); + return iwl_send_add_sta(priv, &sta_cmd, 0); } diff --git a/drivers/net/wireless/iwlwifi/dvm/testmode.c b/drivers/net/wireless/iwlwifi/dvm/testmode.c deleted file mode 100644 index b89b9d9b996..00000000000 --- a/drivers/net/wireless/iwlwifi/dvm/testmode.c +++ /dev/null @@ -1,471 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/dma-mapping.h> -#include <net/net_namespace.h> -#include <linux/netdevice.h> -#include <net/cfg80211.h> -#include <net/mac80211.h> -#include <net/netlink.h> - -#include "iwl-debug.h" -#include "iwl-trans.h" -#include "dev.h" -#include "agn.h" -#include "iwl-test.h" -#include "iwl-testmode.h" - -static int iwl_testmode_send_cmd(struct iwl_op_mode *op_mode, - struct iwl_host_cmd *cmd) -{ - struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); - return iwl_dvm_send_cmd(priv, cmd); -} - -static bool iwl_testmode_valid_hw_addr(u32 addr) -{ - if (iwlagn_hw_valid_rtc_data_addr(addr)) - return true; - - if (IWLAGN_RTC_INST_LOWER_BOUND <= addr && - addr < IWLAGN_RTC_INST_UPPER_BOUND) - return true; - - return false; -} - -static u32 iwl_testmode_get_fw_ver(struct iwl_op_mode *op_mode) -{ - struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); - return priv->fw->ucode_ver; -} - -static struct sk_buff* -iwl_testmode_alloc_reply(struct iwl_op_mode *op_mode, int len) -{ - struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); - return cfg80211_testmode_alloc_reply_skb(priv->hw->wiphy, len); -} - -static int iwl_testmode_reply(struct iwl_op_mode *op_mode, struct sk_buff *skb) -{ - return cfg80211_testmode_reply(skb); -} - -static struct sk_buff *iwl_testmode_alloc_event(struct iwl_op_mode *op_mode, - int len) -{ - struct iwl_priv *priv = IWL_OP_MODE_GET_DVM(op_mode); - return cfg80211_testmode_alloc_event_skb(priv->hw->wiphy, len, - GFP_ATOMIC); -} - -static void iwl_testmode_event(struct iwl_op_mode *op_mode, struct sk_buff *skb) -{ - return cfg80211_testmode_event(skb, GFP_ATOMIC); -} - -static struct iwl_test_ops tst_ops = { - .send_cmd = iwl_testmode_send_cmd, - .valid_hw_addr = iwl_testmode_valid_hw_addr, - .get_fw_ver = iwl_testmode_get_fw_ver, - .alloc_reply = iwl_testmode_alloc_reply, - .reply = iwl_testmode_reply, - .alloc_event = iwl_testmode_alloc_event, - .event = iwl_testmode_event, -}; - -void iwl_testmode_init(struct iwl_priv *priv) -{ - iwl_test_init(&priv->tst, priv->trans, &tst_ops); -} - -void iwl_testmode_free(struct iwl_priv *priv) -{ - iwl_test_free(&priv->tst); -} - -static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv) -{ - struct iwl_notification_wait calib_wait; - static const u8 calib_complete[] = { - CALIBRATION_COMPLETE_NOTIFICATION - }; - int ret; - - iwl_init_notification_wait(&priv->notif_wait, &calib_wait, - calib_complete, ARRAY_SIZE(calib_complete), - NULL, NULL); - ret = iwl_init_alive_start(priv); - if (ret) { - IWL_ERR(priv, "Fail init calibration: %d\n", ret); - goto cfg_init_calib_error; - } - - ret = iwl_wait_notification(&priv->notif_wait, &calib_wait, 2 * HZ); - if (ret) - IWL_ERR(priv, "Error detecting" - " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret); - return ret; - -cfg_init_calib_error: - iwl_remove_notification(&priv->notif_wait, &calib_wait); - return ret; -} - -/* - * This function handles the user application commands for driver. - * - * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the - * handlers respectively. - * - * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned - * value of the actual command execution is replied to the user application. - * - * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP - * is used for carry the message while IWL_TM_ATTR_COMMAND must set to - * IWL_TM_CMD_DEV2APP_SYNC_RSP. - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - struct iwl_trans *trans = priv->trans; - struct sk_buff *skb; - unsigned char *rsp_data_ptr = NULL; - int status = 0, rsp_data_len = 0; - u32 inst_size = 0, data_size = 0; - const struct fw_img *img; - - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: - rsp_data_ptr = (unsigned char *)priv->cfg->name; - rsp_data_len = strlen(priv->cfg->name); - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, - rsp_data_len + 20); - if (!skb) { - IWL_ERR(priv, "Memory allocation fail\n"); - return -ENOMEM; - } - if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, - IWL_TM_CMD_DEV2APP_SYNC_RSP) || - nla_put(skb, IWL_TM_ATTR_SYNC_RSP, - rsp_data_len, rsp_data_ptr)) - goto nla_put_failure; - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_ERR(priv, "Error sending msg : %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: - status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT); - if (status) - IWL_ERR(priv, "Error loading init ucode: %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: - iwl_testmode_cfg_init_calib(priv); - priv->ucode_loaded = false; - iwl_trans_stop_device(trans); - break; - - case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: - status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); - if (status) { - IWL_ERR(priv, - "Error loading runtime ucode: %d\n", status); - break; - } - status = iwl_alive_start(priv); - if (status) - IWL_ERR(priv, - "Error starting the device: %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: - iwl_scan_cancel_timeout(priv, 200); - priv->ucode_loaded = false; - iwl_trans_stop_device(trans); - status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); - if (status) { - IWL_ERR(priv, - "Error loading WOWLAN ucode: %d\n", status); - break; - } - status = iwl_alive_start(priv); - if (status) - IWL_ERR(priv, - "Error starting the device: %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_GET_EEPROM: - if (priv->eeprom_blob) { - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, - priv->eeprom_blob_size + 20); - if (!skb) { - IWL_ERR(priv, "Memory allocation fail\n"); - return -ENOMEM; - } - if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, - IWL_TM_CMD_DEV2APP_EEPROM_RSP) || - nla_put(skb, IWL_TM_ATTR_EEPROM, - priv->eeprom_blob_size, - priv->eeprom_blob)) - goto nla_put_failure; - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_ERR(priv, "Error sending msg : %d\n", - status); - } else - return -ENODATA; - break; - - case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: - if (!tb[IWL_TM_ATTR_FIXRATE]) { - IWL_ERR(priv, "Missing fixrate setting\n"); - return -ENOMSG; - } - priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]); - break; - - case IWL_TM_CMD_APP2DEV_GET_FW_INFO: - skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8); - if (!skb) { - IWL_ERR(priv, "Memory allocation fail\n"); - return -ENOMEM; - } - if (!priv->ucode_loaded) { - IWL_ERR(priv, "No uCode has not been loaded\n"); - return -EINVAL; - } else { - img = &priv->fw->img[priv->cur_ucode]; - inst_size = img->sec[IWL_UCODE_SECTION_INST].len; - data_size = img->sec[IWL_UCODE_SECTION_DATA].len; - } - if (nla_put_u32(skb, IWL_TM_ATTR_FW_TYPE, priv->cur_ucode) || - nla_put_u32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size) || - nla_put_u32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size)) - goto nla_put_failure; - status = cfg80211_testmode_reply(skb); - if (status < 0) - IWL_ERR(priv, "Error sending msg : %d\n", status); - break; - - default: - IWL_ERR(priv, "Unknown testmode driver command ID\n"); - return -ENOSYS; - } - return status; - -nla_put_failure: - kfree_skb(skb); - return -EMSGSIZE; -} - -/* - * This function handles the user application switch ucode ownership. - * - * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and - * decide who the current owner of the uCode - * - * If the current owner is OWNERSHIP_TM, then the only host command - * can deliver to uCode is from testmode, all the other host commands - * will dropped. - * - * default driver is the owner of uCode in normal operational mode - * - * @hw: ieee80211_hw object that represents the device - * @tb: gnl message fields from the user space - */ -static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) -{ - struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - u8 owner; - - if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { - IWL_ERR(priv, "Missing ucode owner\n"); - return -ENOMSG; - } - - owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); - if (owner == IWL_OWNERSHIP_DRIVER) { - priv->ucode_owner = owner; - iwl_test_enable_notifications(&priv->tst, false); - } else if (owner == IWL_OWNERSHIP_TM) { - priv->ucode_owner = owner; - iwl_test_enable_notifications(&priv->tst, true); - } else { - IWL_ERR(priv, "Invalid owner\n"); - return -EINVAL; - } - return 0; -} - -/* The testmode gnl message handler that takes the gnl message from the - * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then - * invoke the corresponding handlers. - * - * This function is invoked when there is user space application sending - * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated - * by nl80211. - * - * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before - * dispatching it to the corresponding handler. - * - * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application; - * -ENOSYS is replied to the user application if the command is unknown; - * Otherwise, the command is dispatched to the respective handler. - * - * @hw: ieee80211_hw object that represents the device - * @data: pointer to user space message - * @len: length in byte of @data - */ -int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) -{ - struct nlattr *tb[IWL_TM_ATTR_MAX]; - struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - int result; - - result = iwl_test_parse(&priv->tst, tb, data, len); - if (result) - return result; - - /* in case multiple accesses to the device happens */ - mutex_lock(&priv->mutex); - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_UCODE: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: - case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: - case IWL_TM_CMD_APP2DEV_END_TRACE: - case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ: - case IWL_TM_CMD_APP2DEV_NOTIFICATIONS: - case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: - case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: - case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE: - result = iwl_test_handle_cmd(&priv->tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: - case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: - case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: - case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: - case IWL_TM_CMD_APP2DEV_GET_EEPROM: - case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: - case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: - case IWL_TM_CMD_APP2DEV_GET_FW_INFO: - IWL_DEBUG_INFO(priv, "testmode cmd to driver\n"); - result = iwl_testmode_driver(hw, tb); - break; - - case IWL_TM_CMD_APP2DEV_OWNERSHIP: - IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); - result = iwl_testmode_ownership(hw, tb); - break; - - default: - IWL_ERR(priv, "Unknown testmode command\n"); - result = -ENOSYS; - break; - } - mutex_unlock(&priv->mutex); - - if (result) - IWL_ERR(priv, "Test cmd failed result=%d\n", result); - return result; -} - -int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, - struct netlink_callback *cb, - void *data, int len) -{ - struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); - int result; - u32 cmd; - - if (cb->args[3]) { - /* offset by 1 since commands start at 0 */ - cmd = cb->args[3] - 1; - } else { - struct nlattr *tb[IWL_TM_ATTR_MAX]; - - result = iwl_test_parse(&priv->tst, tb, data, len); - if (result) - return result; - - cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); - cb->args[3] = cmd + 1; - } - - /* in case multiple accesses to the device happens */ - mutex_lock(&priv->mutex); - result = iwl_test_dump(&priv->tst, cmd, skb, cb); - mutex_unlock(&priv->mutex); - return result; -} diff --git a/drivers/net/wireless/iwlwifi/dvm/tt.c b/drivers/net/wireless/iwlwifi/dvm/tt.c index 03f9bc01c0c..acb981a0a0a 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tt.c +++ b/drivers/net/wireless/iwlwifi/dvm/tt.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -30,7 +30,6 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/init.h> #include <net/mac80211.h> #include "iwl-io.h" #include "iwl-modparams.h" @@ -237,7 +236,7 @@ static void iwl_prepare_ct_kill_task(struct iwl_priv *priv) { IWL_DEBUG_TEMP(priv, "Prepare to enter IWL_TI_CT_KILL\n"); /* make request to retrieve statistics information */ - iwl_send_statistics_request(priv, CMD_SYNC, false); + iwl_send_statistics_request(priv, 0, false); /* Reschedule the ct_kill wait timer */ mod_timer(&priv->thermal_throttle.ct_kill_waiting_tm, jiffies + msecs_to_jiffies(CT_KILL_WAITING_DURATION)); @@ -627,7 +626,7 @@ void iwl_tt_initialize(struct iwl_priv *priv) INIT_WORK(&priv->ct_enter, iwl_bg_ct_enter); INIT_WORK(&priv->ct_exit, iwl_bg_ct_exit); - if (priv->cfg->base_params->adv_thermal_throttle) { + if (priv->lib->adv_thermal_throttle) { IWL_DEBUG_TEMP(priv, "Advanced Thermal Throttling\n"); tt->restriction = kcalloc(IWL_TI_STATE_MAX, sizeof(struct iwl_tt_restriction), diff --git a/drivers/net/wireless/iwlwifi/dvm/tt.h b/drivers/net/wireless/iwlwifi/dvm/tt.h index 9356c4b908c..507726534b8 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tt.h +++ b/drivers/net/wireless/iwlwifi/dvm/tt.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c index a900aaf4779..3255a1723d1 100644 --- a/drivers/net/wireless/iwlwifi/dvm/tx.c +++ b/drivers/net/wireless/iwlwifi/dvm/tx.c @@ -2,7 +2,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -29,7 +29,6 @@ #include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> #include <linux/sched.h> #include <linux/ieee80211.h> #include "iwl-io.h" @@ -83,11 +82,11 @@ static void iwlagn_tx_cmd_build_basic(struct iwl_priv *priv, else if (ieee80211_is_back_req(fc)) tx_flags |= TX_CMD_FLG_ACK_MSK | TX_CMD_FLG_IMM_BA_RSP_MASK; else if (info->band == IEEE80211_BAND_2GHZ && - priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist && + priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist && (ieee80211_is_auth(fc) || ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc) || - skb->protocol == cpu_to_be16(ETH_P_PAE))) + info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO)) tx_flags |= TX_CMD_FLG_IGNORE_BT; @@ -162,18 +161,6 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv, if (ieee80211_is_data(fc)) { tx_cmd->initial_rate_index = 0; tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK; -#ifdef CONFIG_IWLWIFI_DEVICE_TESTMODE - if (priv->tm_fixed_rate) { - /* - * rate overwrite by testmode - * we not only send lq command to change rate - * we also re-enforce per data pkt base. - */ - tx_cmd->tx_flags &= ~TX_CMD_FLG_STA_RATE_MSK; - memcpy(&tx_cmd->rate_n_flags, &priv->tm_fixed_rate, - sizeof(tx_cmd->rate_n_flags)); - } -#endif return; } else if (ieee80211_is_back_req(fc)) tx_cmd->tx_flags |= TX_CMD_FLG_STA_RATE_MSK; @@ -202,8 +189,8 @@ static void iwlagn_tx_cmd_build_rate(struct iwl_priv *priv, rate_flags |= RATE_MCS_CCK_MSK; /* Set up antennas */ - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist && + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist && priv->bt_full_concurrent) { /* operated as 1x1 in full concurrency mode */ priv->mgmt_tx_ant = iwl_toggle_tx_ant(priv, priv->mgmt_tx_ant, @@ -380,6 +367,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, goto drop_unlock_priv; memset(dev_cmd, 0, sizeof(*dev_cmd)); + dev_cmd->hdr.cmd = REPLY_TX; tx_cmd = (struct iwl_tx_cmd *) dev_cmd->payload; /* Total # bytes to be transmitted */ @@ -414,10 +402,10 @@ int iwlagn_tx_skb(struct iwl_priv *priv, /* aggregation is on for this <sta,tid> */ if (info->flags & IEEE80211_TX_CTL_AMPDU && tid_data->agg.state != IWL_AGG_ON) { - IWL_ERR(priv, "TX_CTL_AMPDU while not in AGG:" - " Tx flags = 0x%08x, agg.state = %d", + IWL_ERR(priv, + "TX_CTL_AMPDU while not in AGG: Tx flags = 0x%08x, agg.state = %d\n", info->flags, tid_data->agg.state); - IWL_ERR(priv, "sta_id = %d, tid = %d seq_num = %d", + IWL_ERR(priv, "sta_id = %d, tid = %d seq_num = %d\n", sta_id, tid, IEEE80211_SEQ_TO_SN(tid_data->seq_number)); goto drop_unlock_sta; @@ -428,7 +416,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, */ if (WARN_ONCE(tid_data->agg.state != IWL_AGG_ON && tid_data->agg.state != IWL_AGG_OFF, - "Tx while agg.state = %d", tid_data->agg.state)) + "Tx while agg.state = %d\n", tid_data->agg.state)) goto drop_unlock_sta; seq_number = tid_data->seq_number; @@ -445,27 +433,19 @@ int iwlagn_tx_skb(struct iwl_priv *priv, /* Copy MAC header from skb into command buffer */ memcpy(tx_cmd->hdr, hdr, hdr_len); + txq_id = info->hw_queue; + if (is_agg) txq_id = priv->tid_data[sta_id][tid].agg.txq_id; else if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) { /* - * Send this frame after DTIM -- there's a special queue - * reserved for this for contexts that support AP mode. - */ - txq_id = ctx->mcast_queue; - - /* * The microcode will clear the more data * bit in the last frame it transmits. */ hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); - } else if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) - txq_id = IWL_AUX_QUEUE; - else - txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)]; + } - WARN_ON_ONCE(!is_agg && txq_id != info->hw_queue); WARN_ON_ONCE(is_agg && priv->queue_to_mac80211[txq_id] != info->hw_queue); @@ -490,9 +470,6 @@ int iwlagn_tx_skb(struct iwl_priv *priv, if (sta_priv && sta_priv->client && !is_agg) atomic_inc(&sta_priv->pending_frames); - if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) - iwl_scan_offchannel_skb(priv); - return 0; drop_unlock_sta: @@ -801,8 +778,8 @@ static void iwlagn_check_ratid_empty(struct iwl_priv *priv, int sta_id, u8 tid) /* There are no packets for this RA / TID in the HW any more */ if (tid_data->agg.ssn == tid_data->next_reclaimed) { IWL_DEBUG_TX_QUEUES(priv, - "Can continue DELBA flow ssn = next_recl =" - " %d", tid_data->next_reclaimed); + "Can continue DELBA flow ssn = next_recl = %d\n", + tid_data->next_reclaimed); iwl_trans_txq_disable(priv->trans, tid_data->agg.txq_id); iwlagn_dealloc_agg_txq(priv, tid_data->agg.txq_id); @@ -814,8 +791,8 @@ static void iwlagn_check_ratid_empty(struct iwl_priv *priv, int sta_id, u8 tid) /* There are no packets for this RA / TID in the HW any more */ if (tid_data->agg.ssn == tid_data->next_reclaimed) { IWL_DEBUG_TX_QUEUES(priv, - "Can continue ADDBA flow ssn = next_recl =" - " %d", tid_data->next_reclaimed); + "Can continue ADDBA flow ssn = next_recl = %d\n", + tid_data->next_reclaimed); tid_data->agg.state = IWL_AGG_STARTING; ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid); } @@ -986,8 +963,8 @@ static void iwl_rx_reply_tx_agg(struct iwl_priv *priv, * notification again. */ if (tx_resp->bt_kill_count && tx_resp->frame_count == 1 && - priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { IWL_DEBUG_COEX(priv, "receive reply tx w/ bt_kill\n"); } @@ -1170,7 +1147,6 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, struct sk_buff *skb; struct iwl_rxon_context *ctx; bool is_agg = (txq_id >= IWLAGN_FIRST_AMPDU_QUEUE); - bool is_offchannel_skb; tid = (tx_resp->ra_tid & IWLAGN_TX_RES_TID_MSK) >> IWLAGN_TX_RES_TID_POS; @@ -1190,8 +1166,6 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, __skb_queue_head_init(&skbs); - is_offchannel_skb = false; - if (tx_resp->frame_count == 1) { u16 next_reclaimed = le16_to_cpu(tx_resp->seq_ctl); next_reclaimed = IEEE80211_SEQ_TO_SN(next_reclaimed + 0x10); @@ -1242,8 +1216,8 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, ctx->vif->type == NL80211_IFTYPE_STATION) { /* block and stop all queues */ priv->passive_no_rx = true; - IWL_DEBUG_TX_QUEUES(priv, "stop all queues: " - "passive channel"); + IWL_DEBUG_TX_QUEUES(priv, + "stop all queues: passive channel\n"); ieee80211_stop_queues(priv->hw); IWL_DEBUG_TX_REPLY(priv, @@ -1268,8 +1242,6 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, if (!is_agg) iwlagn_non_agg_tx_status(priv, ctx, hdr->addr1); - is_offchannel_skb = - (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN); freed++; } @@ -1283,14 +1255,6 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, if (!is_agg && freed != 1) IWL_ERR(priv, "Q: %d, freed %d\n", txq_id, freed); - /* - * An offchannel frame can be send only on the AUX queue, where - * there is no aggregation (and reordering) so it only is single - * skb is expected to be processed. - */ - if (is_offchannel_skb && freed != 1) - IWL_ERR(priv, "OFFCHANNEL SKB freed %d\n", freed); - IWL_DEBUG_TX_REPLY(priv, "TXQ %d status %s (0x%08x)\n", txq_id, iwl_get_tx_fail_reason(status), status); @@ -1307,12 +1271,9 @@ int iwlagn_rx_reply_tx(struct iwl_priv *priv, struct iwl_rx_cmd_buffer *rxb, while (!skb_queue_empty(&skbs)) { skb = __skb_dequeue(&skbs); - ieee80211_tx_status_ni(priv->hw, skb); + ieee80211_tx_status(priv->hw, skb); } - if (is_offchannel_skb) - iwl_scan_offchannel_skb_status(priv); - return 0; } @@ -1330,8 +1291,6 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, struct iwl_compressed_ba_resp *ba_resp = (void *)pkt->data; struct iwl_ht_agg *agg; struct sk_buff_head reclaimed_skbs; - struct ieee80211_tx_info *info; - struct ieee80211_hdr *hdr; struct sk_buff *skb; int sta_id; int tid; @@ -1418,22 +1377,28 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, freed = 0; skb_queue_walk(&reclaimed_skbs, skb) { - hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_hdr *hdr = (void *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (ieee80211_is_data_qos(hdr->frame_control)) freed++; else WARN_ON_ONCE(1); - info = IEEE80211_SKB_CB(skb); iwl_trans_free_tx_cmd(priv->trans, info->driver_data[1]); + memset(&info->status, 0, sizeof(info->status)); + /* Packet was transmitted successfully, failures come as single + * frames because before failing a frame the firmware transmits + * it without aggregation at least once. + */ + info->flags |= IEEE80211_TX_STAT_ACK; + if (freed == 1) { /* this is the first skb we deliver in this batch */ /* put the rate scaling data there */ info = IEEE80211_SKB_CB(skb); memset(&info->status, 0, sizeof(info->status)); - info->flags |= IEEE80211_TX_STAT_ACK; info->flags |= IEEE80211_TX_STAT_AMPDU; info->status.ampdu_ack_len = ba_resp->txed_2_done; info->status.ampdu_len = ba_resp->txed; @@ -1446,7 +1411,7 @@ int iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv, while (!skb_queue_empty(&reclaimed_skbs)) { skb = __skb_dequeue(&reclaimed_skbs); - ieee80211_tx_status_ni(priv->hw, skb); + ieee80211_tx_status(priv->hw, skb); } return 0; diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c index 0a1cdc5e856..d5cee153059 100644 --- a/drivers/net/wireless/iwlwifi/dvm/ucode.c +++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c @@ -2,7 +2,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -28,7 +28,6 @@ *****************************************************************************/ #include <linux/kernel.h> -#include <linux/init.h> #include "iwl-io.h" #include "iwl-agn-hw.h" @@ -132,8 +131,8 @@ int iwl_init_alive_start(struct iwl_priv *priv) { int ret; - if (priv->cfg->bt_params && - priv->cfg->bt_params->advanced_bt_coexist) { + if (priv->lib->bt_params && + priv->lib->bt_params->advanced_bt_coexist) { /* * Tell uCode we are ready to perform calibration * need to perform this before any calibration @@ -155,8 +154,8 @@ int iwl_init_alive_start(struct iwl_priv *priv) * temperature offset calibration is only needed for runtime ucode, * so prepare the value now. */ - if (priv->cfg->need_temp_offset_calib) { - if (priv->cfg->temp_offset_v2) + if (priv->lib->need_temp_offset_calib) { + if (priv->lib->temp_offset_v2) return iwl_set_temperature_offset_calib_v2(priv); else return iwl_set_temperature_offset_calib(priv); @@ -173,7 +172,7 @@ static int iwl_send_wimax_coex(struct iwl_priv *priv) memset(&coex_cmd, 0, sizeof(coex_cmd)); return iwl_dvm_send_cmd_pdu(priv, - COEX_PRIORITY_TABLE_CMD, CMD_SYNC, + COEX_PRIORITY_TABLE_CMD, 0, sizeof(coex_cmd), &coex_cmd); } @@ -206,7 +205,7 @@ void iwl_send_prio_tbl(struct iwl_priv *priv) memcpy(prio_tbl_cmd.prio_tbl, iwl_bt_prio_tbl, sizeof(iwl_bt_prio_tbl)); if (iwl_dvm_send_cmd_pdu(priv, - REPLY_BT_COEX_PRIO_TABLE, CMD_SYNC, + REPLY_BT_COEX_PRIO_TABLE, 0, sizeof(prio_tbl_cmd), &prio_tbl_cmd)) IWL_ERR(priv, "failed to send BT prio tbl command\n"); } @@ -219,7 +218,7 @@ int iwl_send_bt_env(struct iwl_priv *priv, u8 action, u8 type) env_cmd.action = action; env_cmd.type = type; ret = iwl_dvm_send_cmd_pdu(priv, - REPLY_BT_COEX_PROT_ENV, CMD_SYNC, + REPLY_BT_COEX_PROT_ENV, 0, sizeof(env_cmd), &env_cmd); if (ret) IWL_ERR(priv, "failed to send BT env command\n"); @@ -277,7 +276,7 @@ static int iwl_alive_notify(struct iwl_priv *priv) if (ret) return ret; - if (!priv->cfg->no_xtal_calib) { + if (!priv->lib->no_xtal_calib) { ret = iwl_set_Xtal_calib(priv); if (ret) return ret; @@ -330,15 +329,14 @@ int iwl_load_ucode_wait_alive(struct iwl_priv *priv, enum iwl_ucode_type old_type; static const u8 alive_cmd[] = { REPLY_ALIVE }; - old_type = priv->cur_ucode; - priv->cur_ucode = ucode_type; fw = iwl_get_ucode_image(priv, ucode_type); + if (WARN_ON(!fw)) + return -EINVAL; + old_type = priv->cur_ucode; + priv->cur_ucode = ucode_type; priv->ucode_loaded = false; - if (!fw) - return -EINVAL; - iwl_init_notification_wait(&priv->notif_wait, &alive_wait, alive_cmd, ARRAY_SIZE(alive_cmd), iwl_alive_fn, &alive_data); @@ -390,7 +388,6 @@ static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait, { struct iwl_priv *priv = data; struct iwl_calib_hdr *hdr; - int len; if (pkt->hdr.cmd != CALIBRATION_RES_NOTIFICATION) { WARN_ON(pkt->hdr.cmd != CALIBRATION_COMPLETE_NOTIFICATION); @@ -398,12 +395,8 @@ static bool iwlagn_wait_calib(struct iwl_notif_wait_data *notif_wait, } hdr = (struct iwl_calib_hdr *)pkt->data; - len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - - /* reduce the size by the length field itself */ - len -= sizeof(__le32); - if (iwl_calib_set(priv, hdr, len)) + if (iwl_calib_set(priv, hdr, iwl_rx_packet_payload_len(pkt))) IWL_ERR(priv, "Failed to record calibration data %d\n", hdr->op_code); diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index c080ae3070b..c3817fae16c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -60,11 +60,9 @@ static const struct iwl_base_params iwl1000_base_params = { .max_ll_items = OTP_MAX_LL_ITEMS_1000, .shadow_ram_support = false, .led_compensation = 51, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_EXT_LONG_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_WATCHDOG_DISABLED, .max_event_log_size = 128, + .scd_chain_ext_wa = true, }; static const struct iwl_ht_params iwl1000_ht_params = { diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c index a6ddd2f9fba..21e5d0843a6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-2000.c +++ b/drivers/net/wireless/iwlwifi/iwl-2000.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -72,14 +72,10 @@ static const struct iwl_base_params iwl2000_base_params = { .max_ll_items = OTP_MAX_LL_ITEMS_2x00, .shadow_ram_support = true, .led_compensation = 51, - .adv_thermal_throttle = true, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_DEF_WD_TIMEOUT, .max_event_log_size = 512, .shadow_reg_enable = false, /* TODO: fix bugs using this feature */ - .hd_v2 = true, + .scd_chain_ext_wa = true, }; @@ -90,14 +86,10 @@ static const struct iwl_base_params iwl2030_base_params = { .max_ll_items = OTP_MAX_LL_ITEMS_2x00, .shadow_ram_support = true, .led_compensation = 57, - .adv_thermal_throttle = true, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_LONG_WD_TIMEOUT, .max_event_log_size = 512, .shadow_reg_enable = false, /* TODO: fix bugs using this feature */ - .hd_v2 = true, + .scd_chain_ext_wa = true, }; static const struct iwl_ht_params iwl2000_ht_params = { @@ -106,16 +98,6 @@ static const struct iwl_ht_params iwl2000_ht_params = { .ht40_bands = BIT(IEEE80211_BAND_2GHZ), }; -static const struct iwl_bt_params iwl2030_bt_params = { - /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */ - .advanced_bt_coexist = true, - .agg_time_limit = BT_AGG_THRESHOLD_DEF, - .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE, - .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT32, - .bt_sco_disable = true, - .bt_session_2 = true, -}; - static const struct iwl_eeprom_params iwl20x0_eeprom_params = { .regulatory_bands = { EEPROM_REG_BAND_1_CHANNELS, @@ -137,12 +119,10 @@ static const struct iwl_eeprom_params iwl20x0_eeprom_params = { .device_family = IWL_DEVICE_FAMILY_2000, \ .max_inst_size = IWL60_RTC_INST_SIZE, \ .max_data_size = IWL60_RTC_DATA_SIZE, \ - .nvm_ver = EEPROM_2000_EEPROM_VERSION, \ - .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ + .nvm_ver = EEPROM_2000_EEPROM_VERSION, \ + .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .base_params = &iwl2000_base_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ - .need_temp_offset_calib = true, \ - .temp_offset_v2 = true, \ .led_mode = IWL_LED_RF_STATE const struct iwl_cfg iwl2000_2bgn_cfg = { @@ -168,12 +148,8 @@ const struct iwl_cfg iwl2000_2bgn_d_cfg = { .nvm_ver = EEPROM_2000_EEPROM_VERSION, \ .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .base_params = &iwl2030_base_params, \ - .bt_params = &iwl2030_bt_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ - .need_temp_offset_calib = true, \ - .temp_offset_v2 = true, \ - .led_mode = IWL_LED_RF_STATE, \ - .adv_pm = true + .led_mode = IWL_LED_RF_STATE const struct iwl_cfg iwl2030_2bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 2230 BGN", @@ -193,10 +169,7 @@ const struct iwl_cfg iwl2030_2bgn_cfg = { .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .base_params = &iwl2000_base_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ - .need_temp_offset_calib = true, \ - .temp_offset_v2 = true, \ .led_mode = IWL_LED_RF_STATE, \ - .adv_pm = true, \ .rx_with_siso_diversity = true const struct iwl_cfg iwl105_bgn_cfg = { @@ -222,12 +195,8 @@ const struct iwl_cfg iwl105_bgn_d_cfg = { .nvm_ver = EEPROM_2000_EEPROM_VERSION, \ .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .base_params = &iwl2030_base_params, \ - .bt_params = &iwl2030_bt_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ - .need_temp_offset_calib = true, \ - .temp_offset_v2 = true, \ .led_mode = IWL_LED_RF_STATE, \ - .adv_pm = true, \ .rx_with_siso_diversity = true const struct iwl_cfg iwl135_bgn_cfg = { diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 403f3f224bf..332bbede39e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -59,11 +59,9 @@ static const struct iwl_base_params iwl5000_base_params = { .num_of_queues = IWLAGN_NUM_QUEUES, .pll_cfg_val = CSR50_ANA_PLL_CFG_VAL, .led_compensation = 51, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_LONG_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_WATCHDOG_DISABLED, .max_event_log_size = 512, - .no_idle_support = true, + .scd_chain_ext_wa = true, }; static const struct iwl_ht_params iwl5000_ht_params = { @@ -159,7 +157,6 @@ const struct iwl_cfg iwl5350_agn_cfg = { .nvm_calib_ver = EEPROM_5050_TX_POWER_VERSION, \ .base_params = &iwl5000_base_params, \ .eeprom_params = &iwl5000_eeprom_params, \ - .no_xtal_calib = true, \ .led_mode = IWL_LED_BLINK, \ .internal_wimax_coex = true diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index b5ab8d1bcac..8f2c3c8c6b8 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -82,13 +82,10 @@ static const struct iwl_base_params iwl6000_base_params = { .max_ll_items = OTP_MAX_LL_ITEMS_6x00, .shadow_ram_support = true, .led_compensation = 51, - .adv_thermal_throttle = true, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_DEF_WD_TIMEOUT, .max_event_log_size = 512, .shadow_reg_enable = false, /* TODO: fix bugs using this feature */ + .scd_chain_ext_wa = true, }; static const struct iwl_base_params iwl6050_base_params = { @@ -98,13 +95,10 @@ static const struct iwl_base_params iwl6050_base_params = { .max_ll_items = OTP_MAX_LL_ITEMS_6x50, .shadow_ram_support = true, .led_compensation = 51, - .adv_thermal_throttle = true, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, - .chain_noise_scale = 1500, .wd_timeout = IWL_DEF_WD_TIMEOUT, .max_event_log_size = 1024, .shadow_reg_enable = false, /* TODO: fix bugs using this feature */ + .scd_chain_ext_wa = true, }; static const struct iwl_base_params iwl6000_g2_base_params = { @@ -114,13 +108,10 @@ static const struct iwl_base_params iwl6000_g2_base_params = { .max_ll_items = OTP_MAX_LL_ITEMS_6x00, .shadow_ram_support = true, .led_compensation = 57, - .adv_thermal_throttle = true, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_LONG_WD_TIMEOUT, .max_event_log_size = 512, .shadow_reg_enable = false, /* TODO: fix bugs using this feature */ + .scd_chain_ext_wa = true, }; static const struct iwl_ht_params iwl6000_ht_params = { @@ -129,15 +120,6 @@ static const struct iwl_ht_params iwl6000_ht_params = { .ht40_bands = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ), }; -static const struct iwl_bt_params iwl6000_bt_params = { - /* Due to bluetooth, we transmit 2.4 GHz probes only on antenna A */ - .advanced_bt_coexist = true, - .agg_time_limit = BT_AGG_THRESHOLD_DEF, - .bt_init_traffic_load = IWL_BT_COEX_TRAFFIC_LOAD_NONE, - .bt_prio_boost = IWLAGN_BT_PRIO_BOOST_DEFAULT, - .bt_sco_disable = true, -}; - static const struct iwl_eeprom_params iwl6000_eeprom_params = { .regulatory_bands = { EEPROM_REG_BAND_1_CHANNELS, @@ -163,7 +145,6 @@ static const struct iwl_eeprom_params iwl6000_eeprom_params = { .nvm_calib_ver = EEPROM_6005_TX_POWER_VERSION, \ .base_params = &iwl6000_g2_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .need_temp_offset_calib = true, \ .led_mode = IWL_LED_RF_STATE const struct iwl_cfg iwl6005_2agn_cfg = { @@ -217,11 +198,8 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = { .nvm_ver = EEPROM_6030_EEPROM_VERSION, \ .nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION, \ .base_params = &iwl6000_g2_base_params, \ - .bt_params = &iwl6000_bt_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .need_temp_offset_calib = true, \ - .led_mode = IWL_LED_RF_STATE, \ - .adv_pm = true \ + .led_mode = IWL_LED_RF_STATE const struct iwl_cfg iwl6030_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N 6230 AGN", @@ -256,11 +234,8 @@ const struct iwl_cfg iwl6030_2bg_cfg = { .nvm_ver = EEPROM_6030_EEPROM_VERSION, \ .nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION, \ .base_params = &iwl6000_g2_base_params, \ - .bt_params = &iwl6000_bt_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .need_temp_offset_calib = true, \ - .led_mode = IWL_LED_RF_STATE, \ - .adv_pm = true + .led_mode = IWL_LED_RF_STATE const struct iwl_cfg iwl6035_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N 6235 AGN", @@ -268,6 +243,12 @@ const struct iwl_cfg iwl6035_2agn_cfg = { .ht_params = &iwl6000_ht_params, }; +const struct iwl_cfg iwl6035_2agn_sff_cfg = { + .name = "Intel(R) Centrino(R) Ultimate-N 6235 AGN", + IWL_DEVICE_6035, + .ht_params = &iwl6000_ht_params, +}; + const struct iwl_cfg iwl1030_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 1030 BGN", IWL_DEVICE_6030, diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c index 50263e87fe1..48730064da7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-7000.c +++ b/drivers/net/wireless/iwlwifi/iwl-7000.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -67,22 +67,24 @@ #include "iwl-agn-hw.h" /* Highest firmware API version supported */ -#define IWL7260_UCODE_API_MAX 6 -#define IWL3160_UCODE_API_MAX 6 +#define IWL7260_UCODE_API_MAX 9 +#define IWL3160_UCODE_API_MAX 9 /* Oldest version we won't warn about */ -#define IWL7260_UCODE_API_OK 6 -#define IWL3160_UCODE_API_OK 6 +#define IWL7260_UCODE_API_OK 9 +#define IWL3160_UCODE_API_OK 9 /* Lowest firmware API version supported */ -#define IWL7260_UCODE_API_MIN 6 -#define IWL3160_UCODE_API_MIN 6 +#define IWL7260_UCODE_API_MIN 8 +#define IWL3160_UCODE_API_MIN 8 /* NVM versions */ #define IWL7260_NVM_VERSION 0x0a1d #define IWL7260_TX_POWER_VERSION 0xffff /* meaningless */ #define IWL3160_NVM_VERSION 0x709 #define IWL3160_TX_POWER_VERSION 0xffff /* meaningless */ +#define IWL7265_NVM_VERSION 0x0a1d +#define IWL7265_TX_POWER_VERSION 0xffff /* meaningless */ #define IWL7260_FW_PRE "iwlwifi-7260-" #define IWL7260_MODULE_FIRMWARE(api) IWL7260_FW_PRE __stringify(api) ".ucode" @@ -90,23 +92,26 @@ #define IWL3160_FW_PRE "iwlwifi-3160-" #define IWL3160_MODULE_FIRMWARE(api) IWL3160_FW_PRE __stringify(api) ".ucode" +#define IWL7265_FW_PRE "iwlwifi-7265-" +#define IWL7265_MODULE_FIRMWARE(api) IWL7265_FW_PRE __stringify(api) ".ucode" + +#define NVM_HW_SECTION_NUM_FAMILY_7000 0 + static const struct iwl_base_params iwl7000_base_params = { - .eeprom_size = OTP_LOW_IMAGE_SIZE, + .eeprom_size = OTP_LOW_IMAGE_SIZE_FAMILY_7000, .num_of_queues = IWLAGN_NUM_QUEUES, .pll_cfg_val = 0, .shadow_ram_support = true, .led_compensation = 57, - .adv_thermal_throttle = true, - .support_ct_kill_exit = true, - .plcp_delta_threshold = IWL_MAX_PLCP_ERR_THRESHOLD_DEF, - .chain_noise_scale = 1000, .wd_timeout = IWL_LONG_WD_TIMEOUT, .max_event_log_size = 512, - .shadow_reg_enable = false, /* TODO: fix bugs using this feature */ + .shadow_reg_enable = true, + .pcie_l1_allowed = true, + .apmg_wake_up_wa = true, }; static const struct iwl_ht_params iwl7000_ht_params = { - .use_rts_for_aggregation = true, /* use rts/cts protection */ + .stbc = true, .ht40_bands = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ), }; @@ -118,29 +123,126 @@ static const struct iwl_ht_params iwl7000_ht_params = { .max_inst_size = IWL60_RTC_INST_SIZE, \ .max_data_size = IWL60_RTC_DATA_SIZE, \ .base_params = &iwl7000_base_params, \ - /* TODO: .bt_params? */ \ - .need_temp_offset_calib = true, \ .led_mode = IWL_LED_RF_STATE, \ - .adv_pm = true \ + .nvm_hw_section_num = NVM_HW_SECTION_NUM_FAMILY_7000 const struct iwl_cfg iwl7260_2ac_cfg = { - .name = "Intel(R) Dual Band Wireless AC7260", + .name = "Intel(R) Dual Band Wireless AC 7260", + .fw_name_pre = IWL7260_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL7260_NVM_VERSION, + .nvm_calib_ver = IWL7260_TX_POWER_VERSION, + .host_interrupt_operation_mode = true, + .lp_xtal_workaround = true, +}; + +const struct iwl_cfg iwl7260_2ac_cfg_high_temp = { + .name = "Intel(R) Dual Band Wireless AC 7260", + .fw_name_pre = IWL7260_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL7260_NVM_VERSION, + .nvm_calib_ver = IWL7260_TX_POWER_VERSION, + .high_temp = true, + .host_interrupt_operation_mode = true, + .lp_xtal_workaround = true, +}; + +const struct iwl_cfg iwl7260_2n_cfg = { + .name = "Intel(R) Dual Band Wireless N 7260", .fw_name_pre = IWL7260_FW_PRE, IWL_DEVICE_7000, .ht_params = &iwl7000_ht_params, .nvm_ver = IWL7260_NVM_VERSION, .nvm_calib_ver = IWL7260_TX_POWER_VERSION, + .host_interrupt_operation_mode = true, + .lp_xtal_workaround = true, }; -const struct iwl_cfg iwl3160_ac_cfg = { - .name = "Intel(R) Dual Band Wireless AC3160", +const struct iwl_cfg iwl7260_n_cfg = { + .name = "Intel(R) Wireless N 7260", + .fw_name_pre = IWL7260_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL7260_NVM_VERSION, + .nvm_calib_ver = IWL7260_TX_POWER_VERSION, + .host_interrupt_operation_mode = true, + .lp_xtal_workaround = true, +}; + +const struct iwl_cfg iwl3160_2ac_cfg = { + .name = "Intel(R) Dual Band Wireless AC 3160", .fw_name_pre = IWL3160_FW_PRE, IWL_DEVICE_7000, .ht_params = &iwl7000_ht_params, .nvm_ver = IWL3160_NVM_VERSION, .nvm_calib_ver = IWL3160_TX_POWER_VERSION, + .host_interrupt_operation_mode = true, +}; + +const struct iwl_cfg iwl3160_2n_cfg = { + .name = "Intel(R) Dual Band Wireless N 3160", + .fw_name_pre = IWL3160_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL3160_NVM_VERSION, + .nvm_calib_ver = IWL3160_TX_POWER_VERSION, + .host_interrupt_operation_mode = true, +}; + +const struct iwl_cfg iwl3160_n_cfg = { + .name = "Intel(R) Wireless N 3160", + .fw_name_pre = IWL3160_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL3160_NVM_VERSION, + .nvm_calib_ver = IWL3160_TX_POWER_VERSION, + .host_interrupt_operation_mode = true, +}; + +static const struct iwl_pwr_tx_backoff iwl7265_pwr_tx_backoffs[] = { + {.pwr = 1600, .backoff = 0}, + {.pwr = 1300, .backoff = 467}, + {.pwr = 900, .backoff = 1900}, + {.pwr = 800, .backoff = 2630}, + {.pwr = 700, .backoff = 3720}, + {.pwr = 600, .backoff = 5550}, + {.pwr = 500, .backoff = 9350}, + {0}, +}; + +const struct iwl_cfg iwl7265_2ac_cfg = { + .name = "Intel(R) Dual Band Wireless AC 7265", + .fw_name_pre = IWL7265_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL7265_NVM_VERSION, + .nvm_calib_ver = IWL7265_TX_POWER_VERSION, + .pwr_tx_backoffs = iwl7265_pwr_tx_backoffs, +}; + +const struct iwl_cfg iwl7265_2n_cfg = { + .name = "Intel(R) Dual Band Wireless N 7265", + .fw_name_pre = IWL7265_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL7265_NVM_VERSION, + .nvm_calib_ver = IWL7265_TX_POWER_VERSION, + .pwr_tx_backoffs = iwl7265_pwr_tx_backoffs, +}; + +const struct iwl_cfg iwl7265_n_cfg = { + .name = "Intel(R) Wireless N 7265", + .fw_name_pre = IWL7265_FW_PRE, + IWL_DEVICE_7000, + .ht_params = &iwl7000_ht_params, + .nvm_ver = IWL7265_NVM_VERSION, + .nvm_calib_ver = IWL7265_TX_POWER_VERSION, + .pwr_tx_backoffs = iwl7265_pwr_tx_backoffs, }; MODULE_FIRMWARE(IWL7260_MODULE_FIRMWARE(IWL7260_UCODE_API_OK)); MODULE_FIRMWARE(IWL3160_MODULE_FIRMWARE(IWL3160_UCODE_API_OK)); +MODULE_FIRMWARE(IWL7265_MODULE_FIRMWARE(IWL7260_UCODE_API_OK)); diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c new file mode 100644 index 00000000000..51c41531d81 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-8000.c @@ -0,0 +1,135 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +#include <linux/module.h> +#include <linux/stringify.h> +#include "iwl-config.h" +#include "iwl-agn-hw.h" + +/* Highest firmware API version supported */ +#define IWL8000_UCODE_API_MAX 8 + +/* Oldest version we won't warn about */ +#define IWL8000_UCODE_API_OK 8 + +/* Lowest firmware API version supported */ +#define IWL8000_UCODE_API_MIN 8 + +/* NVM versions */ +#define IWL8000_NVM_VERSION 0x0a1d +#define IWL8000_TX_POWER_VERSION 0xffff /* meaningless */ + +#define IWL8000_FW_PRE "iwlwifi-8000-" +#define IWL8000_MODULE_FIRMWARE(api) IWL8000_FW_PRE __stringify(api) ".ucode" + +#define NVM_HW_SECTION_NUM_FAMILY_8000 10 +#define DEFAULT_NVM_FILE_FAMILY_8000 "iwl_nvm_8000.bin" + +static const struct iwl_base_params iwl8000_base_params = { + .eeprom_size = OTP_LOW_IMAGE_SIZE_FAMILY_8000, + .num_of_queues = IWLAGN_NUM_QUEUES, + .pll_cfg_val = 0, + .shadow_ram_support = true, + .led_compensation = 57, + .wd_timeout = IWL_LONG_WD_TIMEOUT, + .max_event_log_size = 512, + .shadow_reg_enable = true, + .pcie_l1_allowed = true, +}; + +static const struct iwl_ht_params iwl8000_ht_params = { + .ht40_bands = BIT(IEEE80211_BAND_2GHZ) | BIT(IEEE80211_BAND_5GHZ), +}; + +#define IWL_DEVICE_8000 \ + .ucode_api_max = IWL8000_UCODE_API_MAX, \ + .ucode_api_ok = IWL8000_UCODE_API_OK, \ + .ucode_api_min = IWL8000_UCODE_API_MIN, \ + .device_family = IWL_DEVICE_FAMILY_8000, \ + .max_inst_size = IWL60_RTC_INST_SIZE, \ + .max_data_size = IWL60_RTC_DATA_SIZE, \ + .base_params = &iwl8000_base_params, \ + .led_mode = IWL_LED_RF_STATE, \ + .nvm_hw_section_num = NVM_HW_SECTION_NUM_FAMILY_8000 + +const struct iwl_cfg iwl8260_2ac_cfg = { + .name = "Intel(R) Dual Band Wireless AC 8260", + .fw_name_pre = IWL8000_FW_PRE, + IWL_DEVICE_8000, + .ht_params = &iwl8000_ht_params, + .nvm_ver = IWL8000_NVM_VERSION, + .nvm_calib_ver = IWL8000_TX_POWER_VERSION, + .default_nvm_file = DEFAULT_NVM_FILE_FAMILY_8000, +}; + +const struct iwl_cfg iwl8260_n_cfg = { + .name = "Intel(R) Dual Band Wireless-AC 8260", + .fw_name_pre = IWL8000_FW_PRE, + IWL_DEVICE_8000, + .ht_params = &iwl8000_ht_params, + .nvm_ver = IWL8000_NVM_VERSION, + .nvm_calib_ver = IWL8000_TX_POWER_VERSION, + .default_nvm_file = DEFAULT_NVM_FILE_FAMILY_8000, +}; + +MODULE_FIRMWARE(IWL8000_MODULE_FIRMWARE(IWL8000_UCODE_API_OK)); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-hw.h b/drivers/net/wireless/iwlwifi/iwl-agn-hw.h index 6d73f943cef..04a483d3865 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn-hw.h +++ b/drivers/net/wireless/iwlwifi/iwl-agn-hw.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -102,9 +102,7 @@ /* EEPROM */ #define IWLAGN_EEPROM_IMG_SIZE 2048 -/* OTP */ -/* lower blocks contain EEPROM image and calibration data */ -#define OTP_LOW_IMAGE_SIZE (2 * 512 * sizeof(u16)) /* 2 KB */ + /* high blocks contain PAPD data */ #define OTP_HIGH_IMAGE_SIZE_6x00 (6 * 512 * sizeof(u16)) /* 6 KB */ #define OTP_HIGH_IMAGE_SIZE_1000 (0x200 * sizeof(u16)) /* 1024 bytes */ diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h index c38aa8f7755..b7047905f41 100644 --- a/drivers/net/wireless/iwlwifi/iwl-config.h +++ b/drivers/net/wireless/iwlwifi/iwl-config.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -84,6 +84,7 @@ enum iwl_device_family { IWL_DEVICE_FAMILY_6050, IWL_DEVICE_FAMILY_6150, IWL_DEVICE_FAMILY_7000, + IWL_DEVICE_FAMILY_8000, }; /* @@ -129,6 +130,12 @@ enum iwl_led_mode { #define ANT_BC (ANT_B | ANT_C) #define ANT_ABC (ANT_A | ANT_B | ANT_C) +static inline u8 num_of_ant(u8 mask) +{ + return !!((mask) & ANT_A) + + !!((mask) & ANT_B) + + !!((mask) & ANT_C); +} /* * @max_ll_items: max number of OTP blocks @@ -136,17 +143,12 @@ enum iwl_led_mode { * @led_compensation: compensate on the led on/off time per HW according * to the deviation to achieve the desired led frequency. * The detail algorithm is described in iwl-led.c - * @chain_noise_num_beacons: number of beacons used to compute chain noise - * @adv_thermal_throttle: support advance thermal throttle - * @support_ct_kill_exit: support ct kill exit condition - * @plcp_delta_threshold: plcp error rate threshold used to trigger - * radio tuning when there is a high receiving plcp error rate - * @chain_noise_scale: default chain noise scale used for gain computation * @wd_timeout: TX queues watchdog timeout * @max_event_log_size: size of event log buffer size for ucode event logging * @shadow_reg_enable: HW shadow register support - * @hd_v2: v2 of enhanced sensitivity value, used for 2000 series and up - * @no_idle_support: do not support idle mode + * @apmg_wake_up_wa: should the MAC access REQ be asserted when a command + * is in flight. This is due to a HW bug in 7260, 3160 and 7265. + * @scd_chain_ext_wa: should the chain extension feature in SCD be disabled. */ struct iwl_base_params { int eeprom_size; @@ -157,40 +159,23 @@ struct iwl_base_params { const u16 max_ll_items; const bool shadow_ram_support; u16 led_compensation; - bool adv_thermal_throttle; - bool support_ct_kill_exit; - u8 plcp_delta_threshold; - s32 chain_noise_scale; unsigned int wd_timeout; u32 max_event_log_size; const bool shadow_reg_enable; - const bool hd_v2; - const bool no_idle_support; -}; - -/* - * @advanced_bt_coexist: support advanced bt coexist - * @bt_init_traffic_load: specify initial bt traffic load - * @bt_prio_boost: default bt priority boost value - * @agg_time_limit: maximum number of uSec in aggregation - * @bt_sco_disable: uCode should not response to BT in SCO/ESCO mode - */ -struct iwl_bt_params { - bool advanced_bt_coexist; - u8 bt_init_traffic_load; - u32 bt_prio_boost; - u16 agg_time_limit; - bool bt_sco_disable; - bool bt_session_2; + const bool pcie_l1_allowed; + const bool apmg_wake_up_wa; + const bool scd_chain_ext_wa; }; /* + * @stbc: support Tx STBC and 1*SS Rx STBC * @use_rts_for_aggregation: use rts/cts protection for HT traffic * @ht40_bands: bitmap of bands (using %IEEE80211_BAND_*) that support HT40 */ struct iwl_ht_params { enum ieee80211_smps_mode smps_mode; const bool ht_greenfield_support; /* if used set to true */ + const bool stbc; bool use_rts_for_aggregation; u8 ht40_bands; }; @@ -208,11 +193,25 @@ struct iwl_ht_params { #define EEPROM_6000_REG_BAND_24_HT40_CHANNELS 0x80 #define EEPROM_REGULATORY_BAND_NO_HT40 0 +/* lower blocks contain EEPROM image and calibration data */ +#define OTP_LOW_IMAGE_SIZE (2 * 512 * sizeof(u16)) /* 2 KB */ +#define OTP_LOW_IMAGE_SIZE_FAMILY_7000 (16 * 512 * sizeof(u16)) /* 16 KB */ +#define OTP_LOW_IMAGE_SIZE_FAMILY_8000 (32 * 512 * sizeof(u16)) /* 32 KB */ + struct iwl_eeprom_params { const u8 regulatory_bands[7]; bool enhanced_txpower; }; +/* Tx-backoff power threshold + * @pwr: The power limit in mw + * @backoff: The tx-backoff in uSec + */ +struct iwl_pwr_tx_backoff { + u32 pwr; + u32 backoff; +}; + /** * struct iwl_cfg * @name: Offical name of the device @@ -231,16 +230,16 @@ struct iwl_eeprom_params { * @nvm_calib_ver: NVM calibration version * @lib: pointer to the lib ops * @base_params: pointer to basic parameters - * @ht_params: point to ht patameters - * @bt_params: pointer to bt parameters - * @need_temp_offset_calib: need to perform temperature offset calibration - * @no_xtal_calib: some devices do not need crystal calibration data, - * don't send it to those + * @ht_params: point to ht parameters * @led_mode: 0=blinking, 1=On(RF On)/Off(RF Off) - * @adv_pm: advance power management * @rx_with_siso_diversity: 1x1 device with rx antenna diversity * @internal_wimax_coex: internal wifi/wimax combo device - * @temp_offset_v2: support v2 of temperature offset calibration + * @high_temp: Is this NIC is designated to be in high temperature. + * @host_interrupt_operation_mode: device needs host interrupt operation + * mode set + * @d0i3: device uses d0i3 instead of d3 + * @nvm_hw_section_num: the ID of the HW NVM section + * @pwr_tx_backoffs: translation table between power limits and backoffs * * We enable the driver to be backward compatible wrt. hardware features. * API differences in uCode shouldn't be handled here but through TLVs @@ -258,26 +257,31 @@ struct iwl_cfg { const u32 max_inst_size; u8 valid_tx_ant; u8 valid_rx_ant; + bool bt_shared_single_ant; u16 nvm_ver; u16 nvm_calib_ver; /* params not likely to change within a device family */ const struct iwl_base_params *base_params; /* params likely to change within a device family */ const struct iwl_ht_params *ht_params; - const struct iwl_bt_params *bt_params; const struct iwl_eeprom_params *eeprom_params; - const bool need_temp_offset_calib; /* if used set to true */ - const bool no_xtal_calib; enum iwl_led_mode led_mode; - const bool adv_pm; const bool rx_with_siso_diversity; const bool internal_wimax_coex; - const bool temp_offset_v2; + const bool host_interrupt_operation_mode; + bool high_temp; + bool d0i3; + u8 nvm_hw_section_num; + bool lp_xtal_workaround; + const struct iwl_pwr_tx_backoff *pwr_tx_backoffs; + bool no_power_up_nic_in_init; + const char *default_nvm_file; }; /* * This list declares the config structures for all devices. */ +#if IS_ENABLED(CONFIG_IWLDVM) extern const struct iwl_cfg iwl5300_agn_cfg; extern const struct iwl_cfg iwl5100_agn_cfg; extern const struct iwl_cfg iwl5350_agn_cfg; @@ -316,10 +320,24 @@ extern const struct iwl_cfg iwl2000_2bgn_cfg; extern const struct iwl_cfg iwl2000_2bgn_d_cfg; extern const struct iwl_cfg iwl2030_2bgn_cfg; extern const struct iwl_cfg iwl6035_2agn_cfg; +extern const struct iwl_cfg iwl6035_2agn_sff_cfg; extern const struct iwl_cfg iwl105_bgn_cfg; extern const struct iwl_cfg iwl105_bgn_d_cfg; extern const struct iwl_cfg iwl135_bgn_cfg; +#endif /* CONFIG_IWLDVM */ +#if IS_ENABLED(CONFIG_IWLMVM) extern const struct iwl_cfg iwl7260_2ac_cfg; -extern const struct iwl_cfg iwl3160_ac_cfg; +extern const struct iwl_cfg iwl7260_2ac_cfg_high_temp; +extern const struct iwl_cfg iwl7260_2n_cfg; +extern const struct iwl_cfg iwl7260_n_cfg; +extern const struct iwl_cfg iwl3160_2ac_cfg; +extern const struct iwl_cfg iwl3160_2n_cfg; +extern const struct iwl_cfg iwl3160_n_cfg; +extern const struct iwl_cfg iwl7265_2ac_cfg; +extern const struct iwl_cfg iwl7265_2n_cfg; +extern const struct iwl_cfg iwl7265_n_cfg; +extern const struct iwl_cfg iwl8260_2ac_cfg; +extern const struct iwl_cfg iwl8260_n_cfg; +#endif /* CONFIG_IWLMVM */ #endif /* __IWL_CONFIG_H__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h index 20e845d4da0..fe129c94ae3 100644 --- a/drivers/net/wireless/iwlwifi/iwl-csr.h +++ b/drivers/net/wireless/iwlwifi/iwl-csr.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -139,6 +139,13 @@ #define CSR_ANA_PLL_CFG (CSR_BASE+0x20c) /* + * CSR HW resources monitor registers + */ +#define CSR_MONITOR_CFG_REG (CSR_BASE+0x214) +#define CSR_MONITOR_STATUS_REG (CSR_BASE+0x228) +#define CSR_MONITOR_XTAL_RESOURCES (0x00000010) + +/* * CSR Hardware Revision Workaround Register. Indicates hardware rev; * "step" determines CCK backoff for txpower calculation. Used for 4965 only. * See also CSR_HW_REV register. @@ -173,6 +180,7 @@ #define CSR_HW_IF_CONFIG_REG_BIT_NIC_READY (0x00400000) /* PCI_OWN_SEM */ #define CSR_HW_IF_CONFIG_REG_BIT_NIC_PREPARE_DONE (0x02000000) /* ME_OWN */ #define CSR_HW_IF_CONFIG_REG_PREPARE (0x08000000) /* WAKE_ME */ +#define CSR_HW_IF_CONFIG_REG_PERSIST_MODE (0x40000000) /* PERSISTENCE */ #define CSR_INT_PERIODIC_DIS (0x00) /* disable periodic int*/ #define CSR_INT_PERIODIC_ENA (0xFF) /* 255*32 usec ~ 8 msec*/ @@ -198,7 +206,8 @@ CSR_INT_BIT_RF_KILL | \ CSR_INT_BIT_SW_RX | \ CSR_INT_BIT_WAKEUP | \ - CSR_INT_BIT_ALIVE) + CSR_INT_BIT_ALIVE | \ + CSR_INT_BIT_RX_PERIODIC) /* interrupt flags in FH (flow handler) (PCI busmaster DMA) */ #define CSR_FH_INT_BIT_ERR (1 << 31) /* Error */ @@ -239,6 +248,7 @@ * 001 -- MAC power-down * 010 -- PHY (radio) power-down * 011 -- Error + * 10: XTAL ON request * 9-6: SYS_CONFIG * Indicates current system configuration, reflecting pins on chip * as forced high/low by device circuit board. @@ -270,6 +280,7 @@ #define CSR_GP_CNTRL_REG_FLAG_INIT_DONE (0x00000004) #define CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ (0x00000008) #define CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP (0x00000010) +#define CSR_GP_CNTRL_REG_FLAG_XTAL_ON (0x00000400) #define CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN (0x00000001) @@ -395,6 +406,34 @@ #define CSR_DRAM_INIT_TBL_WRAP_CHECK (1 << 27) /* + * SHR target access (Shared block memory space) + * + * Shared internal registers can be accessed directly from PCI bus through SHR + * arbiter without need for the MAC HW to be powered up. This is possible due to + * indirect read/write via HEEP_CTRL_WRD_PCIEX_CTRL (0xEC) and + * HEEP_CTRL_WRD_PCIEX_DATA (0xF4) registers. + * + * Use iwl_write32()/iwl_read32() family to access these registers. The MAC HW + * need not be powered up so no "grab inc access" is required. + */ + +/* + * Registers for accessing shared registers (e.g. SHR_APMG_GP1, + * SHR_APMG_XTAL_CFG). For example, to read from SHR_APMG_GP1 register (0x1DC), + * first, write to the control register: + * HEEP_CTRL_WRD_PCIEX_CTRL[15:0] = 0x1DC (offset of the SHR_APMG_GP1 register) + * HEEP_CTRL_WRD_PCIEX_CTRL[29:28] = 2 (read access) + * second, read from the data register HEEP_CTRL_WRD_PCIEX_DATA[31:0]. + * + * To write the register, first, write to the data register + * HEEP_CTRL_WRD_PCIEX_DATA[31:0] and then: + * HEEP_CTRL_WRD_PCIEX_CTRL[15:0] = 0x1DC (offset of the SHR_APMG_GP1 register) + * HEEP_CTRL_WRD_PCIEX_CTRL[29:28] = 3 (write access) + */ +#define HEEP_CTRL_WRD_PCIEX_CTRL_REG (CSR_BASE+0x0ec) +#define HEEP_CTRL_WRD_PCIEX_DATA_REG (CSR_BASE+0x0f4) + +/* * HBUS (Host-side Bus) * * HBUS registers are mapped directly into PCI bus space, but are used @@ -463,13 +502,29 @@ * the CSR_INT_COALESCING is an 8 bit register in 32-usec unit * * default interrupt coalescing timer is 64 x 32 = 2048 usecs - * default interrupt coalescing calibration timer is 16 x 32 = 512 usecs */ #define IWL_HOST_INT_TIMEOUT_MAX (0xFF) #define IWL_HOST_INT_TIMEOUT_DEF (0x40) #define IWL_HOST_INT_TIMEOUT_MIN (0x0) -#define IWL_HOST_INT_CALIB_TIMEOUT_MAX (0xFF) -#define IWL_HOST_INT_CALIB_TIMEOUT_DEF (0x10) -#define IWL_HOST_INT_CALIB_TIMEOUT_MIN (0x0) +#define IWL_HOST_INT_OPER_MODE BIT(31) + +/***************************************************************************** + * 7000/3000 series SHR DTS addresses * + *****************************************************************************/ + +/* Diode Results Register Structure: */ +enum dtd_diode_reg { + DTS_DIODE_REG_DIG_VAL = 0x000000FF, /* bits [7:0] */ + DTS_DIODE_REG_VREF_LOW = 0x0000FF00, /* bits [15:8] */ + DTS_DIODE_REG_VREF_HIGH = 0x00FF0000, /* bits [23:16] */ + DTS_DIODE_REG_VREF_ID = 0x03000000, /* bits [25:24] */ + DTS_DIODE_REG_PASS_ONCE = 0x80000000, /* bits [31:31] */ + DTS_DIODE_REG_FLAGS_MSK = 0xFF000000, /* bits [31:24] */ +/* Those are the masks INSIDE the flags bit-field: */ + DTS_DIODE_REG_FLAGS_VREFS_ID_POS = 0, + DTS_DIODE_REG_FLAGS_VREFS_ID = 0x00000003, /* bits [1:0] */ + DTS_DIODE_REG_FLAGS_PASS_ONCE_POS = 7, + DTS_DIODE_REG_FLAGS_PASS_ONCE = 0x00000080, /* bits [7:7] */ +}; #endif /* !__iwl_csr_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.c b/drivers/net/wireless/iwlwifi/iwl-debug.c index 8a44f594528..09feff4fa22 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.c +++ b/drivers/net/wireless/iwlwifi/iwl-debug.c @@ -61,8 +61,6 @@ * *****************************************************************************/ -#define DEBUG - #include <linux/device.h> #include <linux/interrupt.h> #include <linux/export.h> @@ -128,8 +126,8 @@ void __iwl_dbg(struct device *dev, #ifdef CONFIG_IWLWIFI_DEBUG if (iwl_have_debug_level(level) && (!limit || net_ratelimit())) - dev_dbg(dev, "%c %s %pV", in_interrupt() ? 'I' : 'U', - function, &vaf); + dev_printk(KERN_DEBUG, dev, "%c %s %pV", + in_interrupt() ? 'I' : 'U', function, &vaf); #endif trace_iwlwifi_dbg(level, in_interrupt(), function, &vaf); va_end(args); diff --git a/drivers/net/wireless/iwlwifi/iwl-debug.h b/drivers/net/wireless/iwlwifi/iwl-debug.h index 8cf5db7fb5c..295083510e7 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debug.h +++ b/drivers/net/wireless/iwlwifi/iwl-debug.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project. * @@ -34,7 +34,11 @@ static inline bool iwl_have_debug_level(u32 level) { +#ifdef CONFIG_IWLWIFI_DEBUG return iwlwifi_mod_params.debug_level & level; +#else + return false; +#endif } void __iwl_err(struct device *dev, bool rfkill_prefix, bool only_trace, @@ -43,12 +47,32 @@ void __iwl_warn(struct device *dev, const char *fmt, ...) __printf(2, 3); void __iwl_info(struct device *dev, const char *fmt, ...) __printf(2, 3); void __iwl_crit(struct device *dev, const char *fmt, ...) __printf(2, 3); +/* not all compilers can evaluate strlen() at compile time, so use sizeof() */ +#define CHECK_FOR_NEWLINE(f) BUILD_BUG_ON(f[sizeof(f) - 2] != '\n') + /* No matter what is m (priv, bus, trans), this will work */ -#define IWL_ERR(m, f, a...) __iwl_err((m)->dev, false, false, f, ## a) -#define IWL_ERR_DEV(d, f, a...) __iwl_err((d), false, false, f, ## a) -#define IWL_WARN(m, f, a...) __iwl_warn((m)->dev, f, ## a) -#define IWL_INFO(m, f, a...) __iwl_info((m)->dev, f, ## a) -#define IWL_CRIT(m, f, a...) __iwl_crit((m)->dev, f, ## a) +#define IWL_ERR_DEV(d, f, a...) \ + do { \ + CHECK_FOR_NEWLINE(f); \ + __iwl_err((d), false, false, f, ## a); \ + } while (0) +#define IWL_ERR(m, f, a...) \ + IWL_ERR_DEV((m)->dev, f, ## a) +#define IWL_WARN(m, f, a...) \ + do { \ + CHECK_FOR_NEWLINE(f); \ + __iwl_warn((m)->dev, f, ## a); \ + } while (0) +#define IWL_INFO(m, f, a...) \ + do { \ + CHECK_FOR_NEWLINE(f); \ + __iwl_info((m)->dev, f, ## a); \ + } while (0) +#define IWL_CRIT(m, f, a...) \ + do { \ + CHECK_FOR_NEWLINE(f); \ + __iwl_crit((m)->dev, f, ## a); \ + } while (0) #if defined(CONFIG_IWLWIFI_DEBUG) || defined(CONFIG_IWLWIFI_DEVICE_TRACING) void __iwl_dbg(struct device *dev, @@ -68,12 +92,17 @@ do { \ DUMP_PREFIX_OFFSET, 16, 1, p, len, 1); \ } while (0) +#define __IWL_DEBUG_DEV(dev, level, limit, fmt, args...) \ + do { \ + CHECK_FOR_NEWLINE(fmt); \ + __iwl_dbg(dev, level, limit, __func__, fmt, ##args); \ + } while (0) #define IWL_DEBUG(m, level, fmt, args...) \ - __iwl_dbg((m)->dev, level, false, __func__, fmt, ##args) + __IWL_DEBUG_DEV((m)->dev, level, false, fmt, ##args) #define IWL_DEBUG_DEV(dev, level, fmt, args...) \ - __iwl_dbg((dev), level, false, __func__, fmt, ##args) + __IWL_DEBUG_DEV(dev, level, false, fmt, ##args) #define IWL_DEBUG_LIMIT(m, level, fmt, args...) \ - __iwl_dbg((m)->dev, level, true, __func__, fmt, ##args) + __IWL_DEBUG_DEV((m)->dev, level, true, fmt, ##args) #ifdef CONFIG_IWLWIFI_DEBUG #define iwl_print_hex_dump(m, level, p, len) \ @@ -122,6 +151,7 @@ do { \ /* 0x00000F00 - 0x00000100 */ #define IWL_DL_POWER 0x00000100 #define IWL_DL_TEMP 0x00000200 +#define IWL_DL_RPM 0x00000400 #define IWL_DL_SCAN 0x00000800 /* 0x0000F000 - 0x00001000 */ #define IWL_DL_ASSOC 0x00001000 @@ -141,6 +171,7 @@ do { \ #define IWL_DL_RX 0x01000000 #define IWL_DL_ISR 0x02000000 #define IWL_DL_HT 0x04000000 +#define IWL_DL_EXTERNAL 0x08000000 /* 0xF0000000 - 0x10000000 */ #define IWL_DL_11H 0x10000000 #define IWL_DL_STATS 0x20000000 @@ -149,6 +180,7 @@ do { \ #define IWL_DEBUG_INFO(p, f, a...) IWL_DEBUG(p, IWL_DL_INFO, f, ## a) #define IWL_DEBUG_MAC80211(p, f, a...) IWL_DEBUG(p, IWL_DL_MAC80211, f, ## a) +#define IWL_DEBUG_EXTERNAL(p, f, a...) IWL_DEBUG(p, IWL_DL_EXTERNAL, f, ## a) #define IWL_DEBUG_TEMP(p, f, a...) IWL_DEBUG(p, IWL_DL_TEMP, f, ## a) #define IWL_DEBUG_SCAN(p, f, a...) IWL_DEBUG(p, IWL_DL_SCAN, f, ## a) #define IWL_DEBUG_RX(p, f, a...) IWL_DEBUG(p, IWL_DL_RX, f, ## a) @@ -183,5 +215,6 @@ do { \ #define IWL_DEBUG_RADIO(p, f, a...) IWL_DEBUG(p, IWL_DL_RADIO, f, ## a) #define IWL_DEBUG_POWER(p, f, a...) IWL_DEBUG(p, IWL_DL_POWER, f, ## a) #define IWL_DEBUG_11H(p, f, a...) IWL_DEBUG(p, IWL_DL_11H, f, ## a) +#define IWL_DEBUG_RPM(p, f, a...) IWL_DEBUG(p, IWL_DL_RPM, f, ## a) #endif diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.c b/drivers/net/wireless/iwlwifi/iwl-devtrace.c index 8f61c717f61..23e7351e02d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-devtrace.c +++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2009 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h index 4491c1c72cc..78bd41bf34b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h +++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2009 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2009 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -33,10 +33,11 @@ static inline bool iwl_trace_data(struct sk_buff *skb) { struct ieee80211_hdr *hdr = (void *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - if (ieee80211_is_data(hdr->frame_control)) - return skb->protocol != cpu_to_be16(ETH_P_PAE); - return false; + if (!ieee80211_is_data(hdr->frame_control)) + return false; + return !(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO); } static inline size_t iwl_rx_trace_len(const struct iwl_trans *trans, diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c index 39aad9893e0..f2a5c12269a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/iwlwifi/iwl-drv.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -128,7 +128,7 @@ struct iwl_drv { const struct iwl_cfg *cfg; int fw_index; /* firmware we're trying to load */ - char firmware_name[25]; /* name of firmware file to load */ + char firmware_name[32]; /* name of firmware file to load */ struct completion request_firmware_complete; @@ -237,7 +237,8 @@ static int iwl_request_firmware(struct iwl_drv *drv, bool first) return -ENOENT; } - sprintf(drv->firmware_name, "%s%s%s", name_pre, tag, ".ucode"); + snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode", + name_pre, tag); IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n", (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) @@ -322,6 +323,41 @@ static void set_sec_offset(struct iwl_firmware_pieces *pieces, pieces->img[type].sec[sec].offset = offset; } +static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len) +{ + int i, j; + struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data; + struct iwl_fw_cipher_scheme *fwcs; + struct ieee80211_cipher_scheme *cs; + u32 cipher; + + if (len < sizeof(*l) || + len < sizeof(l->size) + l->size * sizeof(l->cs[0])) + return -EINVAL; + + for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) { + fwcs = &l->cs[j]; + cipher = le32_to_cpu(fwcs->cipher); + + /* we skip schemes with zero cipher suite selector */ + if (!cipher) + continue; + + cs = &fw->cs[j++]; + cs->cipher = cipher; + cs->iftype = BIT(NL80211_IFTYPE_STATION); + cs->hdr_len = fwcs->hdr_len; + cs->pn_len = fwcs->pn_len; + cs->pn_off = fwcs->pn_off; + cs->key_idx_off = fwcs->key_idx_off; + cs->key_idx_mask = fwcs->key_idx_mask; + cs->key_idx_shift = fwcs->key_idx_shift; + cs->mic_len = fwcs->mic_len; + } + + return 0; +} + /* * Gets uCode section from tlv. */ @@ -368,6 +404,38 @@ static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data) return 0; } +static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data, + struct iwl_ucode_capabilities *capa) +{ + const struct iwl_ucode_api *ucode_api = (void *)data; + u32 api_index = le32_to_cpu(ucode_api->api_index); + + if (api_index >= IWL_API_ARRAY_SIZE) { + IWL_ERR(drv, "api_index larger than supported by driver\n"); + return -EINVAL; + } + + capa->api[api_index] = le32_to_cpu(ucode_api->api_flags); + + return 0; +} + +static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data, + struct iwl_ucode_capabilities *capa) +{ + const struct iwl_ucode_capa *ucode_capa = (void *)data; + u32 api_index = le32_to_cpu(ucode_capa->api_index); + + if (api_index >= IWL_CAPABILITIES_ARRAY_SIZE) { + IWL_ERR(drv, "api_index larger than supported by driver\n"); + return -EINVAL; + } + + capa->capa[api_index] = le32_to_cpu(ucode_capa->api_capa); + + return 0; +} + static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv, const struct firmware *ucode_raw, struct iwl_firmware_pieces *pieces) @@ -483,6 +551,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, const u8 *tlv_data; char buildstr[25]; u32 build; + int num_of_cpus; if (len < sizeof(*ucode)) { IWL_ERR(drv, "uCode has invalid length: %zd\n", len); @@ -601,6 +670,18 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, */ capa->flags = le32_to_cpup((__le32 *)tlv_data); break; + case IWL_UCODE_TLV_API_CHANGES_SET: + if (tlv_len != sizeof(struct iwl_ucode_api)) + goto invalid_tlv_len; + if (iwl_set_ucode_api_flags(drv, tlv_data, capa)) + goto tlv_error; + break; + case IWL_UCODE_TLV_ENABLED_CAPABILITIES: + if (tlv_len != sizeof(struct iwl_ucode_capa)) + goto invalid_tlv_len; + if (iwl_set_ucode_capabilities(drv, tlv_data, capa)) + goto tlv_error; + break; case IWL_UCODE_TLV_INIT_EVTLOG_PTR: if (tlv_len != sizeof(u32)) goto invalid_tlv_len; @@ -691,6 +772,52 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv, if (tlv_len != sizeof(u32)) goto invalid_tlv_len; drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data); + drv->fw.valid_tx_ant = (drv->fw.phy_config & + FW_PHY_CFG_TX_CHAIN) >> + FW_PHY_CFG_TX_CHAIN_POS; + drv->fw.valid_rx_ant = (drv->fw.phy_config & + FW_PHY_CFG_RX_CHAIN) >> + FW_PHY_CFG_RX_CHAIN_POS; + break; + case IWL_UCODE_TLV_SECURE_SEC_RT: + iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR, + tlv_len); + drv->fw.mvm_fw = true; + drv->fw.img[IWL_UCODE_REGULAR].is_secure = true; + break; + case IWL_UCODE_TLV_SECURE_SEC_INIT: + iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT, + tlv_len); + drv->fw.mvm_fw = true; + drv->fw.img[IWL_UCODE_INIT].is_secure = true; + break; + case IWL_UCODE_TLV_SECURE_SEC_WOWLAN: + iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN, + tlv_len); + drv->fw.mvm_fw = true; + drv->fw.img[IWL_UCODE_WOWLAN].is_secure = true; + break; + case IWL_UCODE_TLV_NUM_OF_CPU: + if (tlv_len != sizeof(u32)) + goto invalid_tlv_len; + num_of_cpus = + le32_to_cpup((__le32 *)tlv_data); + + if (num_of_cpus == 2) { + drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus = + true; + drv->fw.img[IWL_UCODE_INIT].is_dual_cpus = + true; + drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus = + true; + } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) { + IWL_ERR(drv, "Driver support upto 2 CPUs\n"); + return -EINVAL; + } + break; + case IWL_UCODE_TLV_CSCHEME: + if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len)) + goto invalid_tlv_len; break; default: IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type); @@ -843,7 +970,7 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) int i; bool load_module = false; - fw->ucode_capa.max_probe_length = 200; + fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH; fw->ucode_capa.standard_phy_calibration_size = IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE; @@ -1000,10 +1127,12 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context) */ if (load_module) { err = request_module("%s", op->name); +#ifdef CONFIG_IWLWIFI_OPMODE_MODULAR if (err) IWL_ERR(drv, "failed to load module %s (error %d), is dynamic loading enabled?\n", op->name, err); +#endif } return; @@ -1030,8 +1159,10 @@ struct iwl_drv *iwl_drv_start(struct iwl_trans *trans, int ret; drv = kzalloc(sizeof(*drv), GFP_KERNEL); - if (!drv) - return NULL; + if (!drv) { + ret = -ENOMEM; + goto err; + } drv->trans = trans; drv->dev = trans->dev; @@ -1076,7 +1207,7 @@ err_free_dbgfs: err_free_drv: #endif kfree(drv); - +err: return ERR_PTR(ret); } @@ -1109,12 +1240,10 @@ void iwl_drv_stop(struct iwl_drv *drv) /* shared module parameters */ struct iwl_mod_params iwlwifi_mod_params = { .restart_fw = true, - .plcp_check = true, .bt_coex_active = true, .power_level = IWL_POWER_INDEX_1, - .bt_ch_announce = true, - .auto_agg = true, .wd_disable = true, + .uapsd_disable = false, /* the rest are 0 by default */ }; IWL_EXPORT_SYMBOL(iwlwifi_mod_params); @@ -1209,7 +1338,7 @@ module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO); MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO); MODULE_PARM_DESC(11n_disable, - "disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX"); + "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX"); module_param_named(amsdu_size_8K, iwlwifi_mod_params.amsdu_size_8K, int, S_IRUGO); MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size (default 0)"); @@ -1221,18 +1350,16 @@ module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling, MODULE_PARM_DESC(antenna_coupling, "specify antenna coupling in dB (defualt: 0 dB)"); -module_param_named(bt_ch_inhibition, iwlwifi_mod_params.bt_ch_announce, - bool, S_IRUGO); -MODULE_PARM_DESC(bt_ch_inhibition, - "Enable BT channel inhibition (default: enable)"); - -module_param_named(plcp_check, iwlwifi_mod_params.plcp_check, bool, S_IRUGO); -MODULE_PARM_DESC(plcp_check, "Check plcp health (default: 1 [enabled])"); - module_param_named(wd_disable, iwlwifi_mod_params.wd_disable, int, S_IRUGO); MODULE_PARM_DESC(wd_disable, - "Disable stuck queue watchdog timer 0=system default, " - "1=disable, 2=enable (default: 0)"); + "Disable stuck queue watchdog timer 0=system default, 1=disable (default: 1)"); + +module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO); +MODULE_PARM_DESC(nvm_file, "NVM file name"); + +module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable, + bool, S_IRUGO); +MODULE_PARM_DESC(uapsd_disable, "disable U-APSD functionality (default: N)"); /* * set bt_coex_active to true, uCode will do kill/defer @@ -1267,8 +1394,3 @@ module_param_named(power_level, iwlwifi_mod_params.power_level, int, S_IRUGO); MODULE_PARM_DESC(power_level, "default power save level (range from 1 - 5, default: 1)"); - -module_param_named(auto_agg, iwlwifi_mod_params.auto_agg, - bool, S_IRUGO); -MODULE_PARM_DESC(auto_agg, - "enable agg w/o check traffic load (default: enable)"); diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.h b/drivers/net/wireless/iwlwifi/iwl-drv.h index 7d145091630..3c72cb710b0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-drv.h +++ b/drivers/net/wireless/iwlwifi/iwl-drv.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -62,15 +62,28 @@ #ifndef __iwl_drv_h__ #define __iwl_drv_h__ - -#include <linux/module.h> +#include <linux/export.h> /* for all modules */ #define DRV_NAME "iwlwifi" #define IWLWIFI_VERSION "in-tree:" -#define DRV_COPYRIGHT "Copyright(c) 2003-2013 Intel Corporation" +#define DRV_COPYRIGHT "Copyright(c) 2003- 2014 Intel Corporation" #define DRV_AUTHOR "<ilw@linux.intel.com>" +/* radio config bits (actual values from NVM definition) */ +#define NVM_RF_CFG_DASH_MSK(x) (x & 0x3) /* bits 0-1 */ +#define NVM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */ +#define NVM_RF_CFG_TYPE_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */ +#define NVM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */ +#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */ +#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */ + +#define NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(x) (x & 0xF) +#define NVM_RF_CFG_DASH_MSK_FAMILY_8000(x) ((x >> 4) & 0xF) +#define NVM_RF_CFG_STEP_MSK_FAMILY_8000(x) ((x >> 8) & 0xF) +#define NVM_RF_CFG_TYPE_MSK_FAMILY_8000(x) ((x >> 12) & 0xFFF) +#define NVM_RF_CFG_TX_ANT_MSK_FAMILY_8000(x) ((x >> 24) & 0xF) +#define NVM_RF_CFG_RX_ANT_MSK_FAMILY_8000(x) ((x >> 28) & 0xF) /** * DOC: Driver system flows - drv component diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c index 600c9fdd7f7..c44cf114964 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -614,10 +614,10 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, channel->flags = IEEE80211_CHAN_NO_HT40; if (!(eeprom_ch->flags & EEPROM_CHANNEL_IBSS)) - channel->flags |= IEEE80211_CHAN_NO_IBSS; + channel->flags |= IEEE80211_CHAN_NO_IR; if (!(eeprom_ch->flags & EEPROM_CHANNEL_ACTIVE)) - channel->flags |= IEEE80211_CHAN_PASSIVE_SCAN; + channel->flags |= IEEE80211_CHAN_NO_IR; if (eeprom_ch->flags & EEPROM_CHANNEL_RADAR) channel->flags |= IEEE80211_CHAN_RADAR; @@ -732,17 +732,16 @@ int iwl_init_sband_channels(struct iwl_nvm_data *data, void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg, struct iwl_nvm_data *data, struct ieee80211_sta_ht_cap *ht_info, - enum ieee80211_band band) + enum ieee80211_band band, + u8 tx_chains, u8 rx_chains) { int max_bit_rate = 0; - u8 rx_chains; - u8 tx_chains; - tx_chains = hweight8(data->valid_tx_ant); + tx_chains = hweight8(tx_chains); if (cfg->rx_with_siso_diversity) rx_chains = 1; else - rx_chains = hweight8(data->valid_rx_ant); + rx_chains = hweight8(rx_chains); if (!(data->sku_cap_11n_enable) || !cfg->ht_params) { ht_info->ht_supported = false; @@ -752,6 +751,13 @@ void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg, ht_info->ht_supported = true; ht_info->cap = IEEE80211_HT_CAP_DSSSCCK40; + if (cfg->ht_params->stbc) { + ht_info->cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); + + if (tx_chains > 1) + ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; + } + if (iwlwifi_mod_params.amsdu_size_8K) ht_info->cap |= IEEE80211_HT_CAP_MAX_AMSDU; @@ -806,7 +812,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg, sband->n_bitrates = N_RATES_24; n_used += iwl_init_sband_channels(data, sband, n_channels, IEEE80211_BAND_2GHZ); - iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ); + iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ, + data->valid_tx_ant, data->valid_rx_ant); sband = &data->bands[IEEE80211_BAND_5GHZ]; sband->band = IEEE80211_BAND_5GHZ; @@ -814,7 +821,8 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg, sband->n_bitrates = N_RATES_52; n_used += iwl_init_sband_channels(data, sband, n_channels, IEEE80211_BAND_5GHZ); - iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ); + iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ, + data->valid_tx_ant, data->valid_rx_ant); if (n_channels != n_used) IWL_ERR_DEV(dev, "EEPROM: used only %d of %d channels\n", diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h index 37f115390b1..f0548b8a64b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-parse.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -81,16 +81,17 @@ struct iwl_nvm_data { bool sku_cap_band_24GHz_enable; bool sku_cap_band_52GHz_enable; bool sku_cap_11n_enable; + bool sku_cap_11ac_enable; bool sku_cap_amt_enable; bool sku_cap_ipan_enable; - u8 radio_cfg_type; + u16 radio_cfg_type; u8 radio_cfg_step; u8 radio_cfg_dash; u8 radio_cfg_pnum; u8 valid_tx_ant, valid_rx_ant; - u16 nvm_version; + u32 nvm_version; s8 max_tx_pwr_half_dbm; struct ieee80211_supported_band bands[IEEE80211_NUM_BANDS]; @@ -133,6 +134,7 @@ int iwl_init_sband_channels(struct iwl_nvm_data *data, void iwl_init_ht_hw_capab(const struct iwl_cfg *cfg, struct iwl_nvm_data *data, struct ieee80211_sta_ht_cap *ht_info, - enum ieee80211_band band); + enum ieee80211_band band, + u8 tx_chains, u8 rx_chains); #endif /* __iwl_eeprom_parse_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-read.c b/drivers/net/wireless/iwlwifi/iwl-eeprom-read.c index e5f2e362ab0..25d0105741d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom-read.c +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-read.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/iwl-eeprom-read.h b/drivers/net/wireless/iwlwifi/iwl-eeprom-read.h index 8e941f8bd7d..a6d3bdf82cd 100644 --- a/drivers/net/wireless/iwlwifi/iwl-eeprom-read.h +++ b/drivers/net/wireless/iwlwifi/iwl-eeprom-read.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h index 484d318245f..9564ae173d0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fh.h +++ b/drivers/net/wireless/iwlwifi/iwl-fh.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h new file mode 100644 index 00000000000..2953ffceda3 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h @@ -0,0 +1,134 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + *****************************************************************************/ + +#ifndef __fw_error_dump_h__ +#define __fw_error_dump_h__ + +#include <linux/types.h> + +#define IWL_FW_ERROR_DUMP_BARKER 0x14789632 + +/** + * enum iwl_fw_error_dump_type - types of data in the dump file + * @IWL_FW_ERROR_DUMP_SRAM: + * @IWL_FW_ERROR_DUMP_REG: + * @IWL_FW_ERROR_DUMP_RXF: + * @IWL_FW_ERROR_DUMP_TXCMD: last TX command data, structured as + * &struct iwl_fw_error_dump_txcmd packets + */ +enum iwl_fw_error_dump_type { + IWL_FW_ERROR_DUMP_SRAM = 0, + IWL_FW_ERROR_DUMP_REG = 1, + IWL_FW_ERROR_DUMP_RXF = 2, + IWL_FW_ERROR_DUMP_TXCMD = 3, + + IWL_FW_ERROR_DUMP_MAX, +}; + +/** + * struct iwl_fw_error_dump_data - data for one type + * @type: %enum iwl_fw_error_dump_type + * @len: the length starting from %data - must be a multiplier of 4. + * @data: the data itself padded to be a multiplier of 4. + */ +struct iwl_fw_error_dump_data { + __le32 type; + __le32 len; + __u8 data[]; +} __packed; + +/** + * struct iwl_fw_error_dump_file - the layout of the header of the file + * @barker: must be %IWL_FW_ERROR_DUMP_BARKER + * @file_len: the length of all the file starting from %barker + * @data: array of %struct iwl_fw_error_dump_data + */ +struct iwl_fw_error_dump_file { + __le32 barker; + __le32 file_len; + u8 data[0]; +} __packed; + +/** + * struct iwl_fw_error_dump_txcmd - TX command data + * @cmdlen: original length of command + * @caplen: captured length of command (may be less) + * @data: captured command data, @caplen bytes + */ +struct iwl_fw_error_dump_txcmd { + __le32 cmdlen; + __le32 caplen; + u8 data[]; +} __packed; + +/** + * iwl_mvm_fw_error_next_data - advance fw error dump data pointer + * @data: previous data block + * Returns: next data block + */ +static inline struct iwl_fw_error_dump_data * +iwl_mvm_fw_error_next_data(struct iwl_fw_error_dump_data *data) +{ + return (void *)(data->data + le32_to_cpu(data->len)); +} + +#endif /* __fw_error_dump_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h index 8b6c6fd95ed..b45e576a4b5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -121,6 +121,13 @@ enum iwl_ucode_tlv_type { IWL_UCODE_TLV_SEC_WOWLAN = 21, IWL_UCODE_TLV_DEF_CALIB = 22, IWL_UCODE_TLV_PHY_SKU = 23, + IWL_UCODE_TLV_SECURE_SEC_RT = 24, + IWL_UCODE_TLV_SECURE_SEC_INIT = 25, + IWL_UCODE_TLV_SECURE_SEC_WOWLAN = 26, + IWL_UCODE_TLV_NUM_OF_CPU = 27, + IWL_UCODE_TLV_CSCHEME = 28, + IWL_UCODE_TLV_API_CHANGES_SET = 29, + IWL_UCODE_TLV_ENABLED_CAPABILITIES = 30, }; struct iwl_ucode_tlv { @@ -153,4 +160,19 @@ struct iwl_tlv_ucode_header { u8 data[0]; }; +/* + * ucode TLVs + * + * ability to get extension for: flags & capabilities from ucode binaries files + */ +struct iwl_ucode_api { + __le32 api_index; + __le32 api_flags; +} __packed; + +struct iwl_ucode_capa { + __le32 api_index; + __le32 api_capa; +} __packed; + #endif /* __iwl_fw_file_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h index c4c446d41eb..b1a33322b9b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -74,13 +74,63 @@ * @IWL_UCODE_TLV_FLAGS_MFP: This uCode image supports MFP (802.11w). * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P. * @IWL_UCODE_TLV_FLAGS_DW_BC_TABLE: The SCD byte count table is in DWORDS + * @IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT: This uCode image supports uAPSD + * @IWL_UCODE_TLV_FLAGS_SHORT_BL: 16 entries of black list instead of 64 in scan + * offload profile config command. + * @IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS: D3 image supports up to six + * (rather than two) IPv6 addresses + * @IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID: not sending a probe with the SSID element + * from the probe request template. + * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL: new NS offload (small version) + * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE: new NS offload (large version) + * @IWL_UCODE_TLV_FLAGS_P2P_PM: P2P client supports PM as a stand alone MAC + * @IWL_UCODE_TLV_FLAGS_P2P_BSS_PS_DCM: support power save on BSS station and + * P2P client interfaces simultaneously if they are in different bindings. + * @IWL_UCODE_TLV_FLAGS_P2P_BSS_PS_SCM: support power save on BSS station and + * P2P client interfaces simultaneously if they are in same bindings. + * @IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT: General support for uAPSD + * @IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD: P2P client supports uAPSD power save + * @IWL_UCODE_TLV_FLAGS_BCAST_FILTERING: uCode supports broadcast filtering. + * @IWL_UCODE_TLV_FLAGS_GO_UAPSD: AP/GO interfaces support uAPSD clients + * @IWL_UCODE_TLV_FLAGS_EBS_SUPPORT: this uCode image supports EBS. */ enum iwl_ucode_tlv_flag { - IWL_UCODE_TLV_FLAGS_PAN = BIT(0), - IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1), - IWL_UCODE_TLV_FLAGS_MFP = BIT(2), - IWL_UCODE_TLV_FLAGS_P2P = BIT(3), - IWL_UCODE_TLV_FLAGS_DW_BC_TABLE = BIT(4), + IWL_UCODE_TLV_FLAGS_PAN = BIT(0), + IWL_UCODE_TLV_FLAGS_NEWSCAN = BIT(1), + IWL_UCODE_TLV_FLAGS_MFP = BIT(2), + IWL_UCODE_TLV_FLAGS_P2P = BIT(3), + IWL_UCODE_TLV_FLAGS_DW_BC_TABLE = BIT(4), + IWL_UCODE_TLV_FLAGS_SHORT_BL = BIT(7), + IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS = BIT(10), + IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID = BIT(12), + IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL = BIT(15), + IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE = BIT(16), + IWL_UCODE_TLV_FLAGS_P2P_PM = BIT(21), + IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM = BIT(22), + IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM = BIT(23), + IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT = BIT(24), + IWL_UCODE_TLV_FLAGS_EBS_SUPPORT = BIT(25), + IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD = BIT(26), + IWL_UCODE_TLV_FLAGS_BCAST_FILTERING = BIT(29), + IWL_UCODE_TLV_FLAGS_GO_UAPSD = BIT(30), +}; + +/** + * enum iwl_ucode_tlv_api - ucode api + * @IWL_UCODE_TLV_API_WOWLAN_CONFIG_TID: wowlan config includes tid field. + * @IWL_UCODE_TLV_API_CSA_FLOW: ucode can do unbind-bind flow for CSA. + */ +enum iwl_ucode_tlv_api { + IWL_UCODE_TLV_API_WOWLAN_CONFIG_TID = BIT(0), + IWL_UCODE_TLV_API_CSA_FLOW = BIT(4), +}; + +/** + * enum iwl_ucode_tlv_capa - ucode capabilities + * @IWL_UCODE_TLV_CAPA_D0I3_SUPPORT: supports D0i3 + */ +enum iwl_ucode_tlv_capa { + IWL_UCODE_TLV_CAPA_D0I3_SUPPORT = BIT(0), }; /* The default calibrate table size if not specified by firmware file */ @@ -88,6 +138,9 @@ enum iwl_ucode_tlv_flag { #define IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE 19 #define IWL_MAX_PHY_CALIBRATE_TBL_SIZE 253 +/* The default max probe length if not specified by the firmware file */ +#define IWL_DEFAULT_MAX_PROBE_LENGTH 200 + /** * enum iwl_ucode_type * @@ -106,22 +159,30 @@ enum iwl_ucode_type { /* * enumeration of ucode section. - * This enumeration is used for legacy tlv style (before 16.0 uCode). + * This enumeration is used directly for older firmware (before 16.0). + * For new firmware, there can be up to 4 sections (see below) but the + * first one packaged into the firmware file is the DATA section and + * some debugging code accesses that. */ enum iwl_ucode_sec { - IWL_UCODE_SECTION_INST, IWL_UCODE_SECTION_DATA, + IWL_UCODE_SECTION_INST, }; /* * For 16.0 uCode and above, there is no differentiation between sections, * just an offset to the HW address. */ -#define IWL_UCODE_SECTION_MAX 4 +#define IWL_UCODE_SECTION_MAX 12 +#define IWL_API_ARRAY_SIZE 1 +#define IWL_CAPABILITIES_ARRAY_SIZE 1 +#define CPU1_CPU2_SEPARATOR_SECTION 0xFFFFCCCC struct iwl_ucode_capabilities { u32 max_probe_length; u32 standard_phy_calibration_size; u32 flags; + u32 api[IWL_API_ARRAY_SIZE]; + u32 capa[IWL_CAPABILITIES_ARRAY_SIZE]; }; /* one for each uCode image (inst/data, init/runtime/wowlan) */ @@ -133,6 +194,13 @@ struct fw_desc { struct fw_img { struct fw_desc sec[IWL_UCODE_SECTION_MAX]; + bool is_secure; + bool is_dual_cpus; +}; + +struct iwl_sf_region { + u32 addr; + u32 size; }; /* uCode version contains 4 values: Major/Minor/API/Serial */ @@ -167,6 +235,44 @@ enum iwl_fw_phy_cfg { FW_PHY_CFG_RX_CHAIN = 0xf << FW_PHY_CFG_RX_CHAIN_POS, }; +#define IWL_UCODE_MAX_CS 1 + +/** + * struct iwl_fw_cipher_scheme - a cipher scheme supported by FW. + * @cipher: a cipher suite selector + * @flags: cipher scheme flags (currently reserved for a future use) + * @hdr_len: a size of MPDU security header + * @pn_len: a size of PN + * @pn_off: an offset of pn from the beginning of the security header + * @key_idx_off: an offset of key index byte in the security header + * @key_idx_mask: a bit mask of key_idx bits + * @key_idx_shift: bit shift needed to get key_idx + * @mic_len: mic length in bytes + * @hw_cipher: a HW cipher index used in host commands + */ +struct iwl_fw_cipher_scheme { + __le32 cipher; + u8 flags; + u8 hdr_len; + u8 pn_len; + u8 pn_off; + u8 key_idx_off; + u8 key_idx_mask; + u8 key_idx_shift; + u8 mic_len; + u8 hw_cipher; +} __packed; + +/** + * struct iwl_fw_cscheme_list - a cipher scheme list + * @size: a number of entries + * @cs: cipher scheme entries + */ +struct iwl_fw_cscheme_list { + u8 size; + struct iwl_fw_cipher_scheme cs[]; +} __packed; + /** * struct iwl_fw - variables associated with the firmware * @@ -182,6 +288,7 @@ enum iwl_fw_phy_cfg { * @inst_evtlog_size: event log size for runtime ucode. * @inst_errlog_ptr: error log offfset for runtime ucode. * @mvm_fw: indicates this is MVM firmware + * @cipher_scheme: optional external cipher scheme. */ struct iwl_fw { u32 ucode_ver; @@ -199,20 +306,12 @@ struct iwl_fw { struct iwl_tlv_calib_ctrl default_calib[IWL_UCODE_TYPE_MAX]; u32 phy_config; + u8 valid_tx_ant; + u8 valid_rx_ant; bool mvm_fw; -}; -static inline u8 iwl_fw_valid_tx_ant(const struct iwl_fw *fw) -{ - return (fw->phy_config & FW_PHY_CFG_TX_CHAIN) >> - FW_PHY_CFG_TX_CHAIN_POS; -} - -static inline u8 iwl_fw_valid_rx_ant(const struct iwl_fw *fw) -{ - return (fw->phy_config & FW_PHY_CFG_RX_CHAIN) >> - FW_PHY_CFG_RX_CHAIN_POS; -} + struct ieee80211_cipher_scheme cs[IWL_UCODE_MAX_CS]; +}; #endif /* __iwl_fw_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c index 305c81f2c2b..5eef4ae7333 100644 --- a/drivers/net/wireless/iwlwifi/iwl-io.c +++ b/drivers/net/wireless/iwlwifi/iwl-io.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project. * @@ -33,6 +33,8 @@ #include "iwl-io.h" #include "iwl-csr.h" #include "iwl-debug.h" +#include "iwl-prph.h" +#include "iwl-fh.h" #define IWL_POLL_INTERVAL 10 /* microseconds */ @@ -92,14 +94,14 @@ int iwl_poll_direct_bit(struct iwl_trans *trans, u32 addr, u32 mask, } IWL_EXPORT_SYMBOL(iwl_poll_direct_bit); -static inline u32 __iwl_read_prph(struct iwl_trans *trans, u32 ofs) +u32 __iwl_read_prph(struct iwl_trans *trans, u32 ofs) { u32 val = iwl_trans_read_prph(trans, ofs); trace_iwlwifi_dev_ioread_prph32(trans->dev, ofs, val); return val; } -static inline void __iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val) +void __iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val) { trace_iwlwifi_dev_iowrite_prph32(trans->dev, ofs, val); iwl_trans_write_prph(trans, ofs, val); @@ -129,6 +131,21 @@ void iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val) } IWL_EXPORT_SYMBOL(iwl_write_prph); +int iwl_poll_prph_bit(struct iwl_trans *trans, u32 addr, + u32 bits, u32 mask, int timeout) +{ + int t = 0; + + do { + if ((iwl_read_prph(trans, addr) & mask) == (bits & mask)) + return t; + udelay(IWL_POLL_INTERVAL); + t += IWL_POLL_INTERVAL; + } while (t < timeout); + + return -ETIMEDOUT; +} + void iwl_set_bits_prph(struct iwl_trans *trans, u32 ofs, u32 mask) { unsigned long flags; @@ -166,3 +183,85 @@ void iwl_clear_bits_prph(struct iwl_trans *trans, u32 ofs, u32 mask) } } IWL_EXPORT_SYMBOL(iwl_clear_bits_prph); + +void iwl_force_nmi(struct iwl_trans *trans) +{ + /* + * In HW previous to the 8000 HW family, and in the 8000 HW family + * itself when the revision step==0, the DEVICE_SET_NMI_REG is used + * to force an NMI. Otherwise, a different register - + * DEVICE_SET_NMI_8000B_REG - is used. + */ + if ((trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) || + ((trans->hw_rev & 0xc) == 0x0)) + iwl_write_prph(trans, DEVICE_SET_NMI_REG, DEVICE_SET_NMI_VAL); + else + iwl_write_prph(trans, DEVICE_SET_NMI_8000B_REG, + DEVICE_SET_NMI_8000B_VAL); +} +IWL_EXPORT_SYMBOL(iwl_force_nmi); + +static const char *get_fh_string(int cmd) +{ +#define IWL_CMD(x) case x: return #x + switch (cmd) { + IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); + IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); + IWL_CMD(FH_RSCSR_CHNL0_WPTR); + IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); + IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); + IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); + IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); + IWL_CMD(FH_TSSR_TX_STATUS_REG); + IWL_CMD(FH_TSSR_TX_ERROR_REG); + default: + return "UNKNOWN"; + } +#undef IWL_CMD +} + +int iwl_dump_fh(struct iwl_trans *trans, char **buf) +{ + int i; + static const u32 fh_tbl[] = { + FH_RSCSR_CHNL0_STTS_WPTR_REG, + FH_RSCSR_CHNL0_RBDCB_BASE_REG, + FH_RSCSR_CHNL0_WPTR, + FH_MEM_RCSR_CHNL0_CONFIG_REG, + FH_MEM_RSSR_SHARED_CTRL_REG, + FH_MEM_RSSR_RX_STATUS_REG, + FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, + FH_TSSR_TX_STATUS_REG, + FH_TSSR_TX_ERROR_REG + }; + +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (buf) { + int pos = 0; + size_t bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; + + *buf = kmalloc(bufsz, GFP_KERNEL); + if (!*buf) + return -ENOMEM; + + pos += scnprintf(*buf + pos, bufsz - pos, + "FH register values:\n"); + + for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) + pos += scnprintf(*buf + pos, bufsz - pos, + " %34s: 0X%08x\n", + get_fh_string(fh_tbl[i]), + iwl_read_direct32(trans, fh_tbl[i])); + + return pos; + } +#endif + + IWL_ERR(trans, "FH register values:\n"); + for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) + IWL_ERR(trans, " %34s: 0X%08x\n", + get_fh_string(fh_tbl[i]), + iwl_read_direct32(trans, fh_tbl[i])); + + return 0; +} diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h index fd9f5b97fff..705d12c079e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-io.h +++ b/drivers/net/wireless/iwlwifi/iwl-io.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project. * @@ -70,11 +70,19 @@ u32 iwl_read_direct32(struct iwl_trans *trans, u32 reg); void iwl_write_direct32(struct iwl_trans *trans, u32 reg, u32 value); +u32 __iwl_read_prph(struct iwl_trans *trans, u32 ofs); u32 iwl_read_prph(struct iwl_trans *trans, u32 ofs); +void __iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val); void iwl_write_prph(struct iwl_trans *trans, u32 ofs, u32 val); +int iwl_poll_prph_bit(struct iwl_trans *trans, u32 addr, + u32 bits, u32 mask, int timeout); void iwl_set_bits_prph(struct iwl_trans *trans, u32 ofs, u32 mask); void iwl_set_bits_mask_prph(struct iwl_trans *trans, u32 ofs, u32 bits, u32 mask); void iwl_clear_bits_prph(struct iwl_trans *trans, u32 ofs, u32 mask); +void iwl_force_nmi(struct iwl_trans *trans); + +/* Error handling */ +int iwl_dump_fh(struct iwl_trans *trans, char **buf); #endif diff --git a/drivers/net/wireless/iwlwifi/iwl-modparams.h b/drivers/net/wireless/iwlwifi/iwl-modparams.h index d6f6c37c09f..d051857729a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-modparams.h +++ b/drivers/net/wireless/iwlwifi/iwl-modparams.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -79,9 +79,12 @@ enum iwl_power_level { IWL_POWER_NUM }; -#define IWL_DISABLE_HT_ALL BIT(0) -#define IWL_DISABLE_HT_TXAGG BIT(1) -#define IWL_DISABLE_HT_RXAGG BIT(2) +enum iwl_disable_11n { + IWL_DISABLE_HT_ALL = BIT(0), + IWL_DISABLE_HT_TXAGG = BIT(1), + IWL_DISABLE_HT_RXAGG = BIT(2), + IWL_ENABLE_HT_TXAGG = BIT(3), +}; /** * struct iwl_mod_params @@ -90,35 +93,33 @@ enum iwl_power_level { * * @sw_crypto: using hardware encryption, default = 0 * @disable_11n: disable 11n capabilities, default = 0, - * use IWL_DISABLE_HT_* constants + * use IWL_[DIS,EN]ABLE_HT_* constants * @amsdu_size_8K: enable 8K amsdu size, default = 0 * @restart_fw: restart firmware, default = 1 - * @plcp_check: enable plcp health check, default = true - * @wd_disable: enable stuck queue check, default = 0 + * @wd_disable: disable stuck queue check, default = 1 * @bt_coex_active: enable bt coex, default = true * @led_mode: system default, default = 0 * @power_save: disable power save, default = false * @power_level: power level, default = 1 * @debug_level: levels are IWL_DL_* * @ant_coupling: antenna coupling in dB, default = 0 - * @bt_ch_announce: BT channel inhibition, default = enable - * @auto_agg: enable agg. without check, default = true */ struct iwl_mod_params { int sw_crypto; unsigned int disable_11n; int amsdu_size_8K; bool restart_fw; - bool plcp_check; int wd_disable; bool bt_coex_active; int led_mode; bool power_save; int power_level; +#ifdef CONFIG_IWLWIFI_DEBUG u32 debug_level; +#endif int ant_coupling; - bool bt_ch_announce; - bool auto_agg; + char *nvm_file; + bool uapsd_disable; }; #endif /* #__iwl_modparams_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-notif-wait.c b/drivers/net/wireless/iwlwifi/iwl-notif-wait.c index 940b8a9d528..b5bc959b1df 100644 --- a/drivers/net/wireless/iwlwifi/iwl-notif-wait.c +++ b/drivers/net/wireless/iwlwifi/iwl-notif-wait.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/iwl-notif-wait.h b/drivers/net/wireless/iwlwifi/iwl-notif-wait.h index 2e2f1c8c99f..95af97a6c2c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-notif-wait.h +++ b/drivers/net/wireless/iwlwifi/iwl-notif-wait.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c index 6199a0a597a..85eee79c495 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -62,6 +62,7 @@ #include <linux/types.h> #include <linux/slab.h> #include <linux/export.h> +#include <linux/etherdevice.h> #include "iwl-drv.h" #include "iwl-modparams.h" #include "iwl-nvm-parse.h" @@ -71,7 +72,7 @@ enum wkp_nvm_offsets { /* NVM HW-Section offset (in words) definitions */ HW_ADDR = 0x15, -/* NVM SW-Section offset (in words) definitions */ + /* NVM SW-Section offset (in words) definitions */ NVM_SW_SECTION = 0x1C0, NVM_VERSION = 0, RADIO_CFG = 1, @@ -79,26 +80,40 @@ enum wkp_nvm_offsets { N_HW_ADDRS = 3, NVM_CHANNELS = 0x1E0 - NVM_SW_SECTION, -/* NVM calibration section offset (in words) definitions */ + /* NVM calibration section offset (in words) definitions */ NVM_CALIB_SECTION = 0x2B8, XTAL_CALIB = 0x316 - NVM_CALIB_SECTION }; +enum family_8000_nvm_offsets { + /* NVM HW-Section offset (in words) definitions */ + HW_ADDR0_FAMILY_8000 = 0x12, + HW_ADDR1_FAMILY_8000 = 0x16, + MAC_ADDRESS_OVERRIDE_FAMILY_8000 = 1, + + /* NVM SW-Section offset (in words) definitions */ + NVM_SW_SECTION_FAMILY_8000 = 0x1C0, + NVM_VERSION_FAMILY_8000 = 0, + RADIO_CFG_FAMILY_8000 = 2, + SKU_FAMILY_8000 = 4, + N_HW_ADDRS_FAMILY_8000 = 5, + + /* NVM REGULATORY -Section offset (in words) definitions */ + NVM_CHANNELS_FAMILY_8000 = 0, + + /* NVM calibration section offset (in words) definitions */ + NVM_CALIB_SECTION_FAMILY_8000 = 0x2B8, + XTAL_CALIB_FAMILY_8000 = 0x316 - NVM_CALIB_SECTION_FAMILY_8000 +}; + /* SKU Capabilities (actual values from NVM definition) */ enum nvm_sku_bits { NVM_SKU_CAP_BAND_24GHZ = BIT(0), NVM_SKU_CAP_BAND_52GHZ = BIT(1), NVM_SKU_CAP_11N_ENABLE = BIT(2), + NVM_SKU_CAP_11AC_ENABLE = BIT(3), }; -/* radio config bits (actual values from NVM definition) */ -#define NVM_RF_CFG_DASH_MSK(x) (x & 0x3) /* bits 0-1 */ -#define NVM_RF_CFG_STEP_MSK(x) ((x >> 2) & 0x3) /* bits 2-3 */ -#define NVM_RF_CFG_TYPE_MSK(x) ((x >> 4) & 0x3) /* bits 4-5 */ -#define NVM_RF_CFG_PNUM_MSK(x) ((x >> 6) & 0x3) /* bits 6-7 */ -#define NVM_RF_CFG_TX_ANT_MSK(x) ((x >> 8) & 0xF) /* bits 8-11 */ -#define NVM_RF_CFG_RX_ANT_MSK(x) ((x >> 12) & 0xF) /* bits 12-15 */ - /* * These are the channel numbers in the order that they are stored in the NVM */ @@ -111,12 +126,24 @@ static const u8 iwl_nvm_channels[] = { 149, 153, 157, 161, 165 }; -#define IWL_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels) -#define NUM_2GHZ_CHANNELS 14 -#define FIRST_2GHZ_HT_MINUS 5 -#define LAST_2GHZ_HT_PLUS 9 -#define LAST_5GHZ_HT 161 +static const u8 iwl_nvm_channels_family_8000[] = { + /* 2.4 GHz */ + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, + /* 5 GHz */ + 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88, 92, + 96, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 144, + 149, 153, 157, 161, 165, 169, 173, 177, 181 +}; +#define IWL_NUM_CHANNELS ARRAY_SIZE(iwl_nvm_channels) +#define IWL_NUM_CHANNELS_FAMILY_8000 ARRAY_SIZE(iwl_nvm_channels_family_8000) +#define NUM_2GHZ_CHANNELS 14 +#define NUM_2GHZ_CHANNELS_FAMILY_8000 14 +#define FIRST_2GHZ_HT_MINUS 5 +#define LAST_2GHZ_HT_PLUS 9 +#define LAST_5GHZ_HT 161 + +#define DEFAULT_MAX_TX_POWER 16 /* rate data (static) */ static struct ieee80211_rate iwl_cfg80211_rates[] = { @@ -177,15 +204,32 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, struct ieee80211_channel *channel; u16 ch_flags; bool is_5ghz; + int num_of_ch, num_2ghz_channels; + const u8 *nvm_chan; + + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) { + num_of_ch = IWL_NUM_CHANNELS; + nvm_chan = &iwl_nvm_channels[0]; + num_2ghz_channels = NUM_2GHZ_CHANNELS; + } else { + num_of_ch = IWL_NUM_CHANNELS_FAMILY_8000; + nvm_chan = &iwl_nvm_channels_family_8000[0]; + num_2ghz_channels = NUM_2GHZ_CHANNELS_FAMILY_8000; + } - for (ch_idx = 0; ch_idx < IWL_NUM_CHANNELS; ch_idx++) { + for (ch_idx = 0; ch_idx < num_of_ch; ch_idx++) { ch_flags = __le16_to_cpup(nvm_ch_flags + ch_idx); + + if (ch_idx >= num_2ghz_channels && + !data->sku_cap_band_52GHz_enable) + ch_flags &= ~NVM_CHANNEL_VALID; + if (!(ch_flags & NVM_CHANNEL_VALID)) { IWL_DEBUG_EEPROM(dev, "Ch. %d Flags %x [%sGHz] - No traffic\n", - iwl_nvm_channels[ch_idx], + nvm_chan[ch_idx], ch_flags, - (ch_idx >= NUM_2GHZ_CHANNELS) ? + (ch_idx >= num_2ghz_channels) ? "5.2" : "2.4"); continue; } @@ -193,8 +237,8 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, channel = &data->channels[n_channels]; n_channels++; - channel->hw_value = iwl_nvm_channels[ch_idx]; - channel->band = (ch_idx < NUM_2GHZ_CHANNELS) ? + channel->hw_value = nvm_chan[ch_idx]; + channel->band = (ch_idx < num_2ghz_channels) ? IEEE80211_BAND_2GHZ : IEEE80211_BAND_5GHZ; channel->center_freq = ieee80211_channel_to_frequency( @@ -202,15 +246,15 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, /* TODO: Need to be dependent to the NVM */ channel->flags = IEEE80211_CHAN_NO_HT40; - if (ch_idx < NUM_2GHZ_CHANNELS && + if (ch_idx < num_2ghz_channels && (ch_flags & NVM_CHANNEL_40MHZ)) { - if (iwl_nvm_channels[ch_idx] <= LAST_2GHZ_HT_PLUS) + if (nvm_chan[ch_idx] <= LAST_2GHZ_HT_PLUS) channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS; - if (iwl_nvm_channels[ch_idx] >= FIRST_2GHZ_HT_MINUS) + if (nvm_chan[ch_idx] >= FIRST_2GHZ_HT_MINUS) channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS; - } else if (iwl_nvm_channels[ch_idx] <= LAST_5GHZ_HT && + } else if (nvm_chan[ch_idx] <= LAST_5GHZ_HT && (ch_flags & NVM_CHANNEL_40MHZ)) { - if ((ch_idx - NUM_2GHZ_CHANNELS) % 2 == 0) + if ((ch_idx - num_2ghz_channels) % 2 == 0) channel->flags &= ~IEEE80211_CHAN_NO_HT40PLUS; else channel->flags &= ~IEEE80211_CHAN_NO_HT40MINUS; @@ -221,18 +265,21 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, channel->flags |= IEEE80211_CHAN_NO_160MHZ; if (!(ch_flags & NVM_CHANNEL_IBSS)) - channel->flags |= IEEE80211_CHAN_NO_IBSS; + channel->flags |= IEEE80211_CHAN_NO_IR; if (!(ch_flags & NVM_CHANNEL_ACTIVE)) - channel->flags |= IEEE80211_CHAN_PASSIVE_SCAN; + channel->flags |= IEEE80211_CHAN_NO_IR; if (ch_flags & NVM_CHANNEL_RADAR) channel->flags |= IEEE80211_CHAN_RADAR; /* Initialize regulatory-based run-time data */ - /* TODO: read the real value from the NVM */ - channel->max_power = 0; + /* + * Default value - highest tx power value. max_power + * is not used in mvm, and is used for backwards compatibility + */ + channel->max_power = DEFAULT_MAX_TX_POWER; is_5ghz = channel->band == IEEE80211_BAND_5GHZ; IWL_DEBUG_EEPROM(dev, "Ch. %d [%sGHz] %s%s%s%s%s%s(0x%02x %ddBm): Ad-Hoc %ssupported\n", @@ -256,17 +303,25 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg, static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg, struct iwl_nvm_data *data, - struct ieee80211_sta_vht_cap *vht_cap) + struct ieee80211_sta_vht_cap *vht_cap, + u8 tx_chains, u8 rx_chains) { - /* For now, assume new devices with NVM are VHT capable */ + int num_rx_ants = num_of_ant(rx_chains); + int num_tx_ants = num_of_ant(tx_chains); vht_cap->vht_supported = true; vht_cap->cap = IEEE80211_VHT_CAP_SHORT_GI_80 | IEEE80211_VHT_CAP_RXSTBC_1 | IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | + 3 << IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT | 7 << IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT; + if (num_tx_ants > 1) + vht_cap->cap |= IEEE80211_VHT_CAP_TXSTBC; + else + vht_cap->cap |= IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; + if (iwlwifi_mod_params.amsdu_size_8K) vht_cap->cap |= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991; @@ -280,9 +335,8 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg, IEEE80211_VHT_MCS_NOT_SUPPORTED << 12 | IEEE80211_VHT_MCS_NOT_SUPPORTED << 14); - if (data->valid_rx_ant == 1 || cfg->rx_with_siso_diversity) { - vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | - IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; + if (num_rx_ants == 1 || cfg->rx_with_siso_diversity) { + vht_cap->cap |= IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN; /* this works because NOT_SUPPORTED == 3 */ vht_cap->vht_mcs.rx_mcs_map |= cpu_to_le16(IEEE80211_VHT_MCS_NOT_SUPPORTED << 2); @@ -292,20 +346,31 @@ static void iwl_init_vht_hw_capab(const struct iwl_cfg *cfg, } static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg, - struct iwl_nvm_data *data, const __le16 *nvm_sw) + struct iwl_nvm_data *data, + const __le16 *ch_section, bool enable_vht, + u8 tx_chains, u8 rx_chains) { - int n_channels = iwl_init_channel_map(dev, cfg, data, - &nvm_sw[NVM_CHANNELS]); + int n_channels; int n_used = 0; struct ieee80211_supported_band *sband; + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) + n_channels = iwl_init_channel_map( + dev, cfg, data, + &ch_section[NVM_CHANNELS]); + else + n_channels = iwl_init_channel_map( + dev, cfg, data, + &ch_section[NVM_CHANNELS_FAMILY_8000]); + sband = &data->bands[IEEE80211_BAND_2GHZ]; sband->band = IEEE80211_BAND_2GHZ; sband->bitrates = &iwl_cfg80211_rates[RATES_24_OFFS]; sband->n_bitrates = N_RATES_24; n_used += iwl_init_sband_channels(data, sband, n_channels, IEEE80211_BAND_2GHZ); - iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ); + iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_2GHZ, + tx_chains, rx_chains); sband = &data->bands[IEEE80211_BAND_5GHZ]; sband->band = IEEE80211_BAND_5GHZ; @@ -313,80 +378,192 @@ static void iwl_init_sbands(struct device *dev, const struct iwl_cfg *cfg, sband->n_bitrates = N_RATES_52; n_used += iwl_init_sband_channels(data, sband, n_channels, IEEE80211_BAND_5GHZ); - iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ); - iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap); + iwl_init_ht_hw_capab(cfg, data, &sband->ht_cap, IEEE80211_BAND_5GHZ, + tx_chains, rx_chains); + if (enable_vht) + iwl_init_vht_hw_capab(cfg, data, &sband->vht_cap, + tx_chains, rx_chains); if (n_channels != n_used) IWL_ERR_DEV(dev, "NVM: used only %d of %d channels\n", n_used, n_channels); } +static int iwl_get_sku(const struct iwl_cfg *cfg, + const __le16 *nvm_sw) +{ + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) + return le16_to_cpup(nvm_sw + SKU); + else + return le32_to_cpup((__le32 *)(nvm_sw + SKU_FAMILY_8000)); +} + +static int iwl_get_nvm_version(const struct iwl_cfg *cfg, + const __le16 *nvm_sw) +{ + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) + return le16_to_cpup(nvm_sw + NVM_VERSION); + else + return le32_to_cpup((__le32 *)(nvm_sw + + NVM_VERSION_FAMILY_8000)); +} + +static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, + const __le16 *nvm_sw) +{ + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) + return le16_to_cpup(nvm_sw + RADIO_CFG); + else + return le32_to_cpup((__le32 *)(nvm_sw + RADIO_CFG_FAMILY_8000)); +} + +#define N_HW_ADDRS_MASK_FAMILY_8000 0xF +static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, + const __le16 *nvm_sw) +{ + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) + return le16_to_cpup(nvm_sw + N_HW_ADDRS); + else + return le32_to_cpup((__le32 *)(nvm_sw + N_HW_ADDRS_FAMILY_8000)) + & N_HW_ADDRS_MASK_FAMILY_8000; +} + +static void iwl_set_radio_cfg(const struct iwl_cfg *cfg, + struct iwl_nvm_data *data, + u32 radio_cfg) +{ + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) { + data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg); + data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg); + data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg); + data->radio_cfg_pnum = NVM_RF_CFG_PNUM_MSK(radio_cfg); + return; + } + + /* set the radio configuration for family 8000 */ + data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK_FAMILY_8000(radio_cfg); + data->radio_cfg_step = NVM_RF_CFG_STEP_MSK_FAMILY_8000(radio_cfg); + data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK_FAMILY_8000(radio_cfg); + data->radio_cfg_pnum = NVM_RF_CFG_FLAVOR_MSK_FAMILY_8000(radio_cfg); +} + +static void iwl_set_hw_address(const struct iwl_cfg *cfg, + struct iwl_nvm_data *data, + const __le16 *nvm_sec) +{ + const u8 *hw_addr = (const u8 *)(nvm_sec + HW_ADDR); + + /* The byte order is little endian 16 bit, meaning 214365 */ + data->hw_addr[0] = hw_addr[1]; + data->hw_addr[1] = hw_addr[0]; + data->hw_addr[2] = hw_addr[3]; + data->hw_addr[3] = hw_addr[2]; + data->hw_addr[4] = hw_addr[5]; + data->hw_addr[5] = hw_addr[4]; +} + +static void iwl_set_hw_address_family_8000(const struct iwl_cfg *cfg, + struct iwl_nvm_data *data, + const __le16 *mac_override, + const __le16 *nvm_hw) +{ + const u8 *hw_addr; + + if (mac_override) { + hw_addr = (const u8 *)(mac_override + + MAC_ADDRESS_OVERRIDE_FAMILY_8000); + + /* The byte order is little endian 16 bit, meaning 214365 */ + data->hw_addr[0] = hw_addr[1]; + data->hw_addr[1] = hw_addr[0]; + data->hw_addr[2] = hw_addr[3]; + data->hw_addr[3] = hw_addr[2]; + data->hw_addr[4] = hw_addr[5]; + data->hw_addr[5] = hw_addr[4]; + + if (is_valid_ether_addr(hw_addr)) + return; + } + + /* take the MAC address from the OTP */ + hw_addr = (const u8 *)(nvm_hw + HW_ADDR0_FAMILY_8000); + data->hw_addr[0] = hw_addr[3]; + data->hw_addr[1] = hw_addr[2]; + data->hw_addr[2] = hw_addr[1]; + data->hw_addr[3] = hw_addr[0]; + + hw_addr = (const u8 *)(nvm_hw + HW_ADDR1_FAMILY_8000); + data->hw_addr[4] = hw_addr[1]; + data->hw_addr[5] = hw_addr[0]; +} + struct iwl_nvm_data * iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg, const __le16 *nvm_hw, const __le16 *nvm_sw, - const __le16 *nvm_calib) + const __le16 *nvm_calib, const __le16 *regulatory, + const __le16 *mac_override, u8 tx_chains, u8 rx_chains) { struct iwl_nvm_data *data; - u8 hw_addr[ETH_ALEN]; - u16 radio_cfg, sku; - - data = kzalloc(sizeof(*data) + - sizeof(struct ieee80211_channel) * IWL_NUM_CHANNELS, - GFP_KERNEL); + u32 sku; + u32 radio_cfg; + + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) + data = kzalloc(sizeof(*data) + + sizeof(struct ieee80211_channel) * + IWL_NUM_CHANNELS, + GFP_KERNEL); + else + data = kzalloc(sizeof(*data) + + sizeof(struct ieee80211_channel) * + IWL_NUM_CHANNELS_FAMILY_8000, + GFP_KERNEL); if (!data) return NULL; - data->nvm_version = le16_to_cpup(nvm_sw + NVM_VERSION); + data->nvm_version = iwl_get_nvm_version(cfg, nvm_sw); - radio_cfg = le16_to_cpup(nvm_sw + RADIO_CFG); - data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg); - data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg); - data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg); - data->radio_cfg_pnum = NVM_RF_CFG_PNUM_MSK(radio_cfg); - data->valid_tx_ant = NVM_RF_CFG_TX_ANT_MSK(radio_cfg); - data->valid_rx_ant = NVM_RF_CFG_RX_ANT_MSK(radio_cfg); + radio_cfg = iwl_get_radio_cfg(cfg, nvm_sw); + iwl_set_radio_cfg(cfg, data, radio_cfg); - sku = le16_to_cpup(nvm_sw + SKU); + sku = iwl_get_sku(cfg, nvm_sw); data->sku_cap_band_24GHz_enable = sku & NVM_SKU_CAP_BAND_24GHZ; data->sku_cap_band_52GHz_enable = sku & NVM_SKU_CAP_BAND_52GHZ; data->sku_cap_11n_enable = sku & NVM_SKU_CAP_11N_ENABLE; + data->sku_cap_11ac_enable = sku & NVM_SKU_CAP_11AC_ENABLE; if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_ALL) data->sku_cap_11n_enable = false; - /* check overrides (some devices have wrong NVM) */ - if (cfg->valid_tx_ant) - data->valid_tx_ant = cfg->valid_tx_ant; - if (cfg->valid_rx_ant) - data->valid_rx_ant = cfg->valid_rx_ant; + data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw); - if (!data->valid_tx_ant || !data->valid_rx_ant) { - IWL_ERR_DEV(dev, "invalid antennas (0x%x, 0x%x)\n", - data->valid_tx_ant, data->valid_rx_ant); - kfree(data); - return NULL; + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) { + /* Checking for required sections */ + if (!nvm_calib) { + IWL_ERR_DEV(dev, + "Can't parse empty Calib NVM sections\n"); + kfree(data); + return NULL; + } + /* in family 8000 Xtal calibration values moved to OTP */ + data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB); + data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1); } - data->n_hw_addrs = le16_to_cpup(nvm_sw + N_HW_ADDRS); + if (cfg->device_family != IWL_DEVICE_FAMILY_8000) { + iwl_set_hw_address(cfg, data, nvm_hw); - data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB); - data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1); + iwl_init_sbands(dev, cfg, data, nvm_sw, + sku & NVM_SKU_CAP_11AC_ENABLE, tx_chains, + rx_chains); + } else { + /* MAC address in family 8000 */ + iwl_set_hw_address_family_8000(cfg, data, mac_override, nvm_hw); - /* The byte order is little endian 16 bit, meaning 214365 */ - memcpy(hw_addr, nvm_hw + HW_ADDR, ETH_ALEN); - data->hw_addr[0] = hw_addr[1]; - data->hw_addr[1] = hw_addr[0]; - data->hw_addr[2] = hw_addr[3]; - data->hw_addr[3] = hw_addr[2]; - data->hw_addr[4] = hw_addr[5]; - data->hw_addr[5] = hw_addr[4]; - - iwl_init_sbands(dev, cfg, data, nvm_sw); + iwl_init_sbands(dev, cfg, data, regulatory, + sku & NVM_SKU_CAP_11AC_ENABLE, tx_chains, + rx_chains); + } - data->calib_version = 255; /* TODO: - this value will prevent some checks from - failing, we need to check if this - field is still needed, and if it does, - where is it in the NVM*/ + data->calib_version = 255; return data; } diff --git a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h index e57fb989661..c9c45a39d21 100644 --- a/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h +++ b/drivers/net/wireless/iwlwifi/iwl-nvm-parse.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2008 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -75,6 +75,7 @@ struct iwl_nvm_data * iwl_parse_nvm_data(struct device *dev, const struct iwl_cfg *cfg, const __le16 *nvm_hw, const __le16 *nvm_sw, - const __le16 *nvm_calib); + const __le16 *nvm_calib, const __le16 *regulatory, + const __le16 *mac_override, u8 tx_chains, u8 rx_chains); #endif /* __iwl_nvm_parse_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-op-mode.h b/drivers/net/wireless/iwlwifi/iwl-op-mode.h index 98c7aa7346d..99785c892f9 100644 --- a/drivers/net/wireless/iwlwifi/iwl-op-mode.h +++ b/drivers/net/wireless/iwlwifi/iwl-op-mode.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -63,6 +63,7 @@ #ifndef __iwl_op_mode_h__ #define __iwl_op_mode_h__ +#include <linux/netdevice.h> #include <linux/debugfs.h> struct iwl_op_mode; @@ -93,7 +94,7 @@ struct iwl_cfg; * 1) The driver layer (iwl-drv.c) chooses the op_mode based on the * capabilities advertized by the fw file (in TLV format). * 2) The driver layer starts the op_mode (ops->start) - * 3) The op_mode registers registers mac80211 + * 3) The op_mode registers mac80211 * 4) The op_mode is governed by mac80211 * 5) The driver layer stops the op_mode */ @@ -112,14 +113,18 @@ struct iwl_cfg; * @stop: stop the op_mode. Must free all the memory allocated. * May sleep * @rx: Rx notification to the op_mode. rxb is the Rx buffer itself. Cmd is the - * HCMD the this Rx responds to. - * This callback may sleep, it is called from a threaded IRQ handler. + * HCMD this Rx responds to. Can't sleep. + * @napi_add: NAPI initialisation. The transport is fully responsible for NAPI, + * but the higher layers need to know about it (in particular mac80211 to + * to able to call the right NAPI RX functions); this function is needed + * to eventually call netif_napi_add() with higher layer involvement. * @queue_full: notifies that a HW queue is full. * Must be atomic and called with BH disabled. * @queue_not_full: notifies that a HW queue is not full any more. * Must be atomic and called with BH disabled. * @hw_rf_kill:notifies of a change in the HW rf kill switch. True means that - * the radio is killed. May sleep. + * the radio is killed. Return %true if the device should be stopped by + * the transport immediately after the call. May sleep. * @free_skb: allows the transport layer to free skbs that haven't been * reclaimed by the op_mode. This can happen when the driver is freed and * there are Tx packets pending in the transport layer. @@ -131,6 +136,8 @@ struct iwl_cfg; * @nic_config: configure NIC, called before firmware is started. * May sleep * @wimax_active: invoked when WiMax becomes active. May sleep + * @enter_d0i3: configure the fw to enter d0i3. May sleep. + * @exit_d0i3: configure the fw to exit d0i3. May sleep. */ struct iwl_op_mode_ops { struct iwl_op_mode *(*start)(struct iwl_trans *trans, @@ -140,14 +147,21 @@ struct iwl_op_mode_ops { void (*stop)(struct iwl_op_mode *op_mode); int (*rx)(struct iwl_op_mode *op_mode, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); + void (*napi_add)(struct iwl_op_mode *op_mode, + struct napi_struct *napi, + struct net_device *napi_dev, + int (*poll)(struct napi_struct *, int), + int weight); void (*queue_full)(struct iwl_op_mode *op_mode, int queue); void (*queue_not_full)(struct iwl_op_mode *op_mode, int queue); - void (*hw_rf_kill)(struct iwl_op_mode *op_mode, bool state); + bool (*hw_rf_kill)(struct iwl_op_mode *op_mode, bool state); void (*free_skb)(struct iwl_op_mode *op_mode, struct sk_buff *skb); void (*nic_error)(struct iwl_op_mode *op_mode); void (*cmd_queue_full)(struct iwl_op_mode *op_mode); void (*nic_config)(struct iwl_op_mode *op_mode); void (*wimax_active)(struct iwl_op_mode *op_mode); + int (*enter_d0i3)(struct iwl_op_mode *op_mode); + int (*exit_d0i3)(struct iwl_op_mode *op_mode); }; int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops); @@ -155,14 +169,12 @@ void iwl_opmode_deregister(const char *name); /** * struct iwl_op_mode - operational mode + * @ops: pointer to its own ops * * This holds an implementation of the mac80211 / fw API. - * - * @ops - pointer to its own ops */ struct iwl_op_mode { const struct iwl_op_mode_ops *ops; - const struct iwl_trans *trans; char op_mode_specific[0] __aligned(sizeof(void *)); }; @@ -177,7 +189,6 @@ static inline int iwl_op_mode_rx(struct iwl_op_mode *op_mode, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd) { - might_sleep(); return op_mode->ops->rx(op_mode, rxb, cmd); } @@ -193,11 +204,11 @@ static inline void iwl_op_mode_queue_not_full(struct iwl_op_mode *op_mode, op_mode->ops->queue_not_full(op_mode, queue); } -static inline void iwl_op_mode_hw_rf_kill(struct iwl_op_mode *op_mode, - bool state) +static inline bool __must_check +iwl_op_mode_hw_rf_kill(struct iwl_op_mode *op_mode, bool state) { might_sleep(); - op_mode->ops->hw_rf_kill(op_mode, state); + return op_mode->ops->hw_rf_kill(op_mode, state); } static inline void iwl_op_mode_free_skb(struct iwl_op_mode *op_mode, @@ -228,4 +239,33 @@ static inline void iwl_op_mode_wimax_active(struct iwl_op_mode *op_mode) op_mode->ops->wimax_active(op_mode); } +static inline int iwl_op_mode_enter_d0i3(struct iwl_op_mode *op_mode) +{ + might_sleep(); + + if (!op_mode->ops->enter_d0i3) + return 0; + return op_mode->ops->enter_d0i3(op_mode); +} + +static inline int iwl_op_mode_exit_d0i3(struct iwl_op_mode *op_mode) +{ + might_sleep(); + + if (!op_mode->ops->exit_d0i3) + return 0; + return op_mode->ops->exit_d0i3(op_mode); +} + +static inline void iwl_op_mode_napi_add(struct iwl_op_mode *op_mode, + struct napi_struct *napi, + struct net_device *napi_dev, + int (*poll)(struct napi_struct *, int), + int weight) +{ + if (!op_mode->ops->napi_add) + return; + op_mode->ops->napi_add(op_mode, napi, napi_dev, poll, weight); +} + #endif /* __iwl_op_mode_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-phy-db.c b/drivers/net/wireless/iwlwifi/iwl-phy-db.c index 25745daa0d5..d4fb5cad07e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-phy-db.c +++ b/drivers/net/wireless/iwlwifi/iwl-phy-db.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -72,7 +72,7 @@ #include "iwl-trans.h" #define CHANNEL_NUM_SIZE 4 /* num of channels in calib_ch size */ -#define IWL_NUM_PAPD_CH_GROUPS 4 +#define IWL_NUM_PAPD_CH_GROUPS 7 #define IWL_NUM_TXP_CH_GROUPS 9 struct iwl_phy_db_entry { @@ -92,20 +92,16 @@ struct iwl_phy_db_entry { struct iwl_phy_db { struct iwl_phy_db_entry cfg; struct iwl_phy_db_entry calib_nch; - struct iwl_phy_db_entry calib_ch; struct iwl_phy_db_entry calib_ch_group_papd[IWL_NUM_PAPD_CH_GROUPS]; struct iwl_phy_db_entry calib_ch_group_txp[IWL_NUM_TXP_CH_GROUPS]; - u32 channel_num; - u32 channel_size; - struct iwl_trans *trans; }; enum iwl_phy_db_section_type { IWL_PHY_DB_CFG = 1, IWL_PHY_DB_CALIB_NCH, - IWL_PHY_DB_CALIB_CH, + IWL_PHY_DB_UNUSED, IWL_PHY_DB_CALIB_CHG_PAPD, IWL_PHY_DB_CALIB_CHG_TXP, IWL_PHY_DB_MAX @@ -169,8 +165,6 @@ iwl_phy_db_get_section(struct iwl_phy_db *phy_db, return &phy_db->cfg; case IWL_PHY_DB_CALIB_NCH: return &phy_db->calib_nch; - case IWL_PHY_DB_CALIB_CH: - return &phy_db->calib_ch; case IWL_PHY_DB_CALIB_CHG_PAPD: if (chg_id >= IWL_NUM_PAPD_CH_GROUPS) return NULL; @@ -208,7 +202,6 @@ void iwl_phy_db_free(struct iwl_phy_db *phy_db) iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CFG, 0); iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_NCH, 0); - iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CH, 0); for (i = 0; i < IWL_NUM_PAPD_CH_GROUPS; i++) iwl_phy_db_free_section(phy_db, IWL_PHY_DB_CALIB_CHG_PAPD, i); for (i = 0; i < IWL_NUM_TXP_CH_GROUPS; i++) @@ -248,13 +241,6 @@ int iwl_phy_db_set_section(struct iwl_phy_db *phy_db, struct iwl_rx_packet *pkt, entry->size = size; - if (type == IWL_PHY_DB_CALIB_CH) { - phy_db->channel_num = - le32_to_cpup((__le32 *)phy_db_notif->data); - phy_db->channel_size = - (size - CHANNEL_NUM_SIZE) / phy_db->channel_num; - } - IWL_DEBUG_INFO(phy_db->trans, "%s(%d): [PHYDB]SET: Type %d , Size: %d\n", __func__, __LINE__, type, size); @@ -328,10 +314,7 @@ int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db, u32 type, u8 **data, u16 *size, u16 ch_id) { struct iwl_phy_db_entry *entry; - u32 channel_num; - u32 channel_size; u16 ch_group_id = 0; - u16 index; if (!phy_db) return -EINVAL; @@ -346,21 +329,8 @@ int iwl_phy_db_get_section_data(struct iwl_phy_db *phy_db, if (!entry) return -EINVAL; - if (type == IWL_PHY_DB_CALIB_CH) { - index = ch_id_to_ch_index(ch_id); - channel_num = phy_db->channel_num; - channel_size = phy_db->channel_size; - if (index >= channel_num) { - IWL_ERR(phy_db->trans, "Wrong channel number %d\n", - ch_id); - return -EINVAL; - } - *data = entry->data + CHANNEL_NUM_SIZE + index * channel_size; - *size = channel_size; - } else { - *data = entry->data; - *size = entry->size; - } + *data = entry->data; + *size = entry->size; IWL_DEBUG_INFO(phy_db->trans, "%s(%d): [PHYDB] GET: Type %d , Size: %d\n", @@ -375,7 +345,6 @@ static int iwl_send_phy_db_cmd(struct iwl_phy_db *phy_db, u16 type, struct iwl_phy_db_cmd phy_db_cmd; struct iwl_host_cmd cmd = { .id = PHY_DB_CMD, - .flags = CMD_SYNC, }; IWL_DEBUG_INFO(phy_db->trans, @@ -413,6 +382,9 @@ static int iwl_phy_db_send_all_channel_groups( if (!entry) return -EINVAL; + if (!entry->size) + continue; + /* Send the requested PHY DB section */ err = iwl_send_phy_db_cmd(phy_db, type, @@ -420,13 +392,13 @@ static int iwl_phy_db_send_all_channel_groups( entry->data); if (err) { IWL_ERR(phy_db->trans, - "Can't SEND phy_db section %d (%d), err %d", + "Can't SEND phy_db section %d (%d), err %d\n", type, i, err); return err; } IWL_DEBUG_INFO(phy_db->trans, - "Sent PHY_DB HCMD, type = %d num = %d", + "Sent PHY_DB HCMD, type = %d num = %d\n", type, i); } @@ -478,7 +450,7 @@ int iwl_send_phy_db_data(struct iwl_phy_db *phy_db) IWL_NUM_PAPD_CH_GROUPS); if (err) { IWL_ERR(phy_db->trans, - "Cannot send channel specific PAPD groups"); + "Cannot send channel specific PAPD groups\n"); return err; } @@ -488,7 +460,7 @@ int iwl_send_phy_db_data(struct iwl_phy_db *phy_db) IWL_NUM_TXP_CH_GROUPS); if (err) { IWL_ERR(phy_db->trans, - "Cannot send channel specific TX power groups"); + "Cannot send channel specific TX power groups\n"); return err; } diff --git a/drivers/net/wireless/iwlwifi/iwl-phy-db.h b/drivers/net/wireless/iwlwifi/iwl-phy-db.h index ce983af7964..9ee18d0d2d0 100644 --- a/drivers/net/wireless/iwlwifi/iwl-phy-db.h +++ b/drivers/net/wireless/iwlwifi/iwl-phy-db.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index 386f2a7c87c..4997e27672b 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -95,11 +95,59 @@ #define APMG_SVR_VOLTAGE_CONFIG_BIT_MSK (0x000001E0) /* bit 8:5 */ #define APMG_SVR_DIGITAL_VOLTAGE_1_32 (0x00000060) -#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800) +#define APMG_PCIDEV_STT_VAL_PERSIST_DIS (0x00000200) +#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800) + +#define APMG_RTC_INT_STT_RFKILL (0x10000000) /* Device system time */ #define DEVICE_SYSTEM_TIME_REG 0xA0206C +/* Device NMI register */ +#define DEVICE_SET_NMI_REG 0x00a01c30 +#define DEVICE_SET_NMI_VAL 0x1 +#define DEVICE_SET_NMI_8000B_REG 0x00a01c24 +#define DEVICE_SET_NMI_8000B_VAL 0x1000000 + +/* Shared registers (0x0..0x3ff, via target indirect or periphery */ +#define SHR_BASE 0x00a10000 + +/* Shared GP1 register */ +#define SHR_APMG_GP1_REG 0x01dc +#define SHR_APMG_GP1_REG_PRPH (SHR_BASE + SHR_APMG_GP1_REG) +#define SHR_APMG_GP1_WF_XTAL_LP_EN 0x00000004 +#define SHR_APMG_GP1_CHICKEN_BIT_SELECT 0x80000000 + +/* Shared DL_CFG register */ +#define SHR_APMG_DL_CFG_REG 0x01c4 +#define SHR_APMG_DL_CFG_REG_PRPH (SHR_BASE + SHR_APMG_DL_CFG_REG) +#define SHR_APMG_DL_CFG_RTCS_CLK_SELECTOR_MSK 0x000000c0 +#define SHR_APMG_DL_CFG_RTCS_CLK_INTERNAL_XTAL 0x00000080 +#define SHR_APMG_DL_CFG_DL_CLOCK_POWER_UP 0x00000100 + +/* Shared APMG_XTAL_CFG register */ +#define SHR_APMG_XTAL_CFG_REG 0x1c0 +#define SHR_APMG_XTAL_CFG_XTAL_ON_REQ 0x80000000 + +/* + * Device reset for family 8000 + * write to bit 24 in order to reset the CPU +*/ +#define RELEASE_CPU_RESET (0x300C) +#define RELEASE_CPU_RESET_BIT BIT(24) + +/***************************************************************************** + * 7000/3000 series SHR DTS addresses * + *****************************************************************************/ + +#define SHR_MISC_WFM_DTS_EN (0x00a10024) +#define DTSC_CFG_MODE (0x00a10604) +#define DTSC_VREF_AVG (0x00a10648) +#define DTSC_VREF5_AVG (0x00a1064c) +#define DTSC_CFG_MODE_PERIODIC (0x2) +#define DTSC_PTAT_AVG (0x00a10650) + + /** * Tx Scheduler * @@ -260,4 +308,55 @@ static inline unsigned int SCD_QUEUE_STATUS_BITS(unsigned int chnl) /*********************** END TX SCHEDULER *************************************/ +/* Oscillator clock */ +#define OSC_CLK (0xa04068) +#define OSC_CLK_FORCE_CONTROL (0x8) + +/* SECURE boot registers */ +#define LMPM_SECURE_BOOT_CONFIG_ADDR (0x100) +enum secure_boot_config_reg { + LMPM_SECURE_BOOT_CONFIG_INSPECTOR_BURNED_IN_OTP = 0x00000001, + LMPM_SECURE_BOOT_CONFIG_INSPECTOR_NOT_REQ = 0x00000002, +}; + +#define LMPM_SECURE_BOOT_CPU1_STATUS_ADDR (0x1E30) +#define LMPM_SECURE_BOOT_CPU2_STATUS_ADDR (0x1E34) +enum secure_boot_status_reg { + LMPM_SECURE_BOOT_CPU_STATUS_VERF_STATUS = 0x00000001, + LMPM_SECURE_BOOT_CPU_STATUS_VERF_COMPLETED = 0x00000002, + LMPM_SECURE_BOOT_CPU_STATUS_VERF_SUCCESS = 0x00000004, + LMPM_SECURE_BOOT_CPU_STATUS_VERF_FAIL = 0x00000008, + LMPM_SECURE_BOOT_CPU_STATUS_SIGN_VERF_FAIL = 0x00000010, + LMPM_SECURE_BOOT_STATUS_SUCCESS = 0x00000003, +}; + +#define CSR_UCODE_LOAD_STATUS_ADDR (0x1E70) +enum secure_load_status_reg { + LMPM_CPU_UCODE_LOADING_STARTED = 0x00000001, + LMPM_CPU_HDRS_LOADING_COMPLETED = 0x00000003, + LMPM_CPU_UCODE_LOADING_COMPLETED = 0x00000007, + LMPM_CPU_STATUS_NUM_OF_LAST_COMPLETED = 0x000000F8, + LMPM_CPU_STATUS_NUM_OF_LAST_LOADED_BLOCK = 0x0000FF00, +}; + +#define LMPM_SECURE_INSPECTOR_CODE_ADDR (0x1E38) +#define LMPM_SECURE_INSPECTOR_DATA_ADDR (0x1E3C) +#define LMPM_SECURE_UCODE_LOAD_CPU1_HDR_ADDR (0x1E78) +#define LMPM_SECURE_UCODE_LOAD_CPU2_HDR_ADDR (0x1E7C) + +#define LMPM_SECURE_INSPECTOR_CODE_MEM_SPACE (0x400000) +#define LMPM_SECURE_INSPECTOR_DATA_MEM_SPACE (0x402000) +#define LMPM_SECURE_CPU1_HDR_MEM_SPACE (0x420000) +#define LMPM_SECURE_CPU2_HDR_MEM_SPACE (0x420400) + +#define LMPM_SECURE_TIME_OUT (100) + +/* Rx FIFO */ +#define RXF_SIZE_ADDR (0xa00c88) +#define RXF_SIZE_BYTE_CND_POS (7) +#define RXF_SIZE_BYTE_CNT_MSK (0x3ff << RXF_SIZE_BYTE_CND_POS) + +#define RXF_LD_FENCE_OFFSET_ADDR (0xa00c10) +#define RXF_FIFO_RD_FENCE_ADDR (0xa00c0c) + #endif /* __iwl_prph_h__ */ diff --git a/drivers/net/wireless/iwlwifi/iwl-test.c b/drivers/net/wireless/iwlwifi/iwl-test.c deleted file mode 100644 index 5cfd55b86ed..00000000000 --- a/drivers/net/wireless/iwlwifi/iwl-test.c +++ /dev/null @@ -1,852 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ - -#include <linux/export.h> -#include <net/netlink.h> - -#include "iwl-drv.h" -#include "iwl-io.h" -#include "iwl-fh.h" -#include "iwl-prph.h" -#include "iwl-trans.h" -#include "iwl-test.h" -#include "iwl-csr.h" -#include "iwl-testmode.h" - -/* - * Periphery registers absolute lower bound. This is used in order to - * differentiate registery access through HBUS_TARG_PRPH_* and - * HBUS_TARG_MEM_* accesses. - */ -#define IWL_ABS_PRPH_START (0xA00000) - -/* - * The TLVs used in the gnl message policy between the kernel module and - * user space application. iwl_testmode_gnl_msg_policy is to be carried - * through the NL80211_CMD_TESTMODE channel regulated by nl80211. - * See iwl-testmode.h - */ -static -struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = { - [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, }, - [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, }, - [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, }, - [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, }, - [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, }, - [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, }, - [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, }, - - [IWL_TM_ATTR_MEM_ADDR] = { .type = NLA_U32, }, - [IWL_TM_ATTR_BUFFER_SIZE] = { .type = NLA_U32, }, - [IWL_TM_ATTR_BUFFER_DUMP] = { .type = NLA_UNSPEC, }, - - [IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, }, - [IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, }, - [IWL_TM_ATTR_FW_TYPE] = { .type = NLA_U32, }, - [IWL_TM_ATTR_FW_INST_SIZE] = { .type = NLA_U32, }, - [IWL_TM_ATTR_FW_DATA_SIZE] = { .type = NLA_U32, }, - - [IWL_TM_ATTR_ENABLE_NOTIFICATION] = {.type = NLA_FLAG, }, -}; - -static inline void iwl_test_trace_clear(struct iwl_test *tst) -{ - memset(&tst->trace, 0, sizeof(struct iwl_test_trace)); -} - -static void iwl_test_trace_stop(struct iwl_test *tst) -{ - if (!tst->trace.enabled) - return; - - if (tst->trace.cpu_addr && tst->trace.dma_addr) - dma_free_coherent(tst->trans->dev, - tst->trace.tsize, - tst->trace.cpu_addr, - tst->trace.dma_addr); - - iwl_test_trace_clear(tst); -} - -static inline void iwl_test_mem_clear(struct iwl_test *tst) -{ - memset(&tst->mem, 0, sizeof(struct iwl_test_mem)); -} - -static inline void iwl_test_mem_stop(struct iwl_test *tst) -{ - if (!tst->mem.in_read) - return; - - iwl_test_mem_clear(tst); -} - -/* - * Initializes the test object - * During the lifetime of the test object it is assumed that the transport is - * started. The test object should be stopped before the transport is stopped. - */ -void iwl_test_init(struct iwl_test *tst, struct iwl_trans *trans, - struct iwl_test_ops *ops) -{ - tst->trans = trans; - tst->ops = ops; - - iwl_test_trace_clear(tst); - iwl_test_mem_clear(tst); -} -EXPORT_SYMBOL_GPL(iwl_test_init); - -/* - * Stop the test object - */ -void iwl_test_free(struct iwl_test *tst) -{ - iwl_test_mem_stop(tst); - iwl_test_trace_stop(tst); -} -EXPORT_SYMBOL_GPL(iwl_test_free); - -static inline int iwl_test_send_cmd(struct iwl_test *tst, - struct iwl_host_cmd *cmd) -{ - return tst->ops->send_cmd(tst->trans->op_mode, cmd); -} - -static inline bool iwl_test_valid_hw_addr(struct iwl_test *tst, u32 addr) -{ - return tst->ops->valid_hw_addr(addr); -} - -static inline u32 iwl_test_fw_ver(struct iwl_test *tst) -{ - return tst->ops->get_fw_ver(tst->trans->op_mode); -} - -static inline struct sk_buff* -iwl_test_alloc_reply(struct iwl_test *tst, int len) -{ - return tst->ops->alloc_reply(tst->trans->op_mode, len); -} - -static inline int iwl_test_reply(struct iwl_test *tst, struct sk_buff *skb) -{ - return tst->ops->reply(tst->trans->op_mode, skb); -} - -static inline struct sk_buff* -iwl_test_alloc_event(struct iwl_test *tst, int len) -{ - return tst->ops->alloc_event(tst->trans->op_mode, len); -} - -static inline void -iwl_test_event(struct iwl_test *tst, struct sk_buff *skb) -{ - return tst->ops->event(tst->trans->op_mode, skb); -} - -/* - * This function handles the user application commands to the fw. The fw - * commands are sent in a synchronuous manner. In case that the user requested - * to get commands response, it is send to the user. - */ -static int iwl_test_fw_cmd(struct iwl_test *tst, struct nlattr **tb) -{ - struct iwl_host_cmd cmd; - struct iwl_rx_packet *pkt; - struct sk_buff *skb; - void *reply_buf; - u32 reply_len; - int ret; - bool cmd_want_skb; - - memset(&cmd, 0, sizeof(struct iwl_host_cmd)); - - if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] || - !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) { - IWL_ERR(tst->trans, "Missing fw command mandatory fields\n"); - return -ENOMSG; - } - - cmd.flags = CMD_ON_DEMAND | CMD_SYNC; - cmd_want_skb = nla_get_flag(tb[IWL_TM_ATTR_UCODE_CMD_SKB]); - if (cmd_want_skb) - cmd.flags |= CMD_WANT_SKB; - - cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]); - cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); - cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); - cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; - IWL_DEBUG_INFO(tst->trans, "test fw cmd=0x%x, flags 0x%x, len %d\n", - cmd.id, cmd.flags, cmd.len[0]); - - ret = iwl_test_send_cmd(tst, &cmd); - if (ret) { - IWL_ERR(tst->trans, "Failed to send hcmd\n"); - return ret; - } - if (!cmd_want_skb) - return ret; - - /* Handling return of SKB to the user */ - pkt = cmd.resp_pkt; - if (!pkt) { - IWL_ERR(tst->trans, "HCMD received a null response packet\n"); - return ret; - } - - reply_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - skb = iwl_test_alloc_reply(tst, reply_len + 20); - reply_buf = kmemdup(&pkt->hdr, reply_len, GFP_KERNEL); - if (!skb || !reply_buf) { - kfree_skb(skb); - kfree(reply_buf); - return -ENOMEM; - } - - /* The reply is in a page, that we cannot send to user space. */ - iwl_free_resp(&cmd); - - if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, - IWL_TM_CMD_DEV2APP_UCODE_RX_PKT) || - nla_put(skb, IWL_TM_ATTR_UCODE_RX_PKT, reply_len, reply_buf)) - goto nla_put_failure; - return iwl_test_reply(tst, skb); - -nla_put_failure: - IWL_DEBUG_INFO(tst->trans, "Failed creating NL attributes\n"); - kfree(reply_buf); - kfree_skb(skb); - return -ENOMSG; -} - -/* - * Handles the user application commands for register access. - */ -static int iwl_test_reg(struct iwl_test *tst, struct nlattr **tb) -{ - u32 ofs, val32, cmd; - u8 val8; - struct sk_buff *skb; - int status = 0; - struct iwl_trans *trans = tst->trans; - - if (!tb[IWL_TM_ATTR_REG_OFFSET]) { - IWL_ERR(trans, "Missing reg offset\n"); - return -ENOMSG; - } - - ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]); - IWL_DEBUG_INFO(trans, "test reg access cmd offset=0x%x\n", ofs); - - cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); - - /* - * Allow access only to FH/CSR/HBUS in direct mode. - * Since we don't have the upper bounds for the CSR and HBUS segments, - * we will use only the upper bound of FH for sanity check. - */ - if (ofs >= FH_MEM_UPPER_BOUND) { - IWL_ERR(trans, "offset out of segment (0x0 - 0x%x)\n", - FH_MEM_UPPER_BOUND); - return -EINVAL; - } - - switch (cmd) { - case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: - val32 = iwl_read_direct32(tst->trans, ofs); - IWL_DEBUG_INFO(trans, "32 value to read 0x%x\n", val32); - - skb = iwl_test_alloc_reply(tst, 20); - if (!skb) { - IWL_ERR(trans, "Memory allocation fail\n"); - return -ENOMEM; - } - if (nla_put_u32(skb, IWL_TM_ATTR_REG_VALUE32, val32)) - goto nla_put_failure; - status = iwl_test_reply(tst, skb); - if (status < 0) - IWL_ERR(trans, "Error sending msg : %d\n", status); - break; - - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: - if (!tb[IWL_TM_ATTR_REG_VALUE32]) { - IWL_ERR(trans, "Missing value to write\n"); - return -ENOMSG; - } else { - val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); - IWL_DEBUG_INFO(trans, "32b write val=0x%x\n", val32); - iwl_write_direct32(tst->trans, ofs, val32); - } - break; - - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: - if (!tb[IWL_TM_ATTR_REG_VALUE8]) { - IWL_ERR(trans, "Missing value to write\n"); - return -ENOMSG; - } else { - val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]); - IWL_DEBUG_INFO(trans, "8b write val=0x%x\n", val8); - iwl_write8(tst->trans, ofs, val8); - } - break; - - default: - IWL_ERR(trans, "Unknown test register cmd ID\n"); - return -ENOMSG; - } - - return status; - -nla_put_failure: - kfree_skb(skb); - return -EMSGSIZE; -} - -/* - * Handles the request to start FW tracing. Allocates of the trace buffer - * and sends a reply to user space with the address of the allocated buffer. - */ -static int iwl_test_trace_begin(struct iwl_test *tst, struct nlattr **tb) -{ - struct sk_buff *skb; - int status = 0; - - if (tst->trace.enabled) - return -EBUSY; - - if (!tb[IWL_TM_ATTR_TRACE_SIZE]) - tst->trace.size = TRACE_BUFF_SIZE_DEF; - else - tst->trace.size = - nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]); - - if (!tst->trace.size) - return -EINVAL; - - if (tst->trace.size < TRACE_BUFF_SIZE_MIN || - tst->trace.size > TRACE_BUFF_SIZE_MAX) - return -EINVAL; - - tst->trace.tsize = tst->trace.size + TRACE_BUFF_PADD; - tst->trace.cpu_addr = dma_alloc_coherent(tst->trans->dev, - tst->trace.tsize, - &tst->trace.dma_addr, - GFP_KERNEL); - if (!tst->trace.cpu_addr) - return -ENOMEM; - - tst->trace.enabled = true; - tst->trace.trace_addr = (u8 *)PTR_ALIGN(tst->trace.cpu_addr, 0x100); - - memset(tst->trace.trace_addr, 0x03B, tst->trace.size); - - skb = iwl_test_alloc_reply(tst, sizeof(tst->trace.dma_addr) + 20); - if (!skb) { - IWL_ERR(tst->trans, "Memory allocation fail\n"); - iwl_test_trace_stop(tst); - return -ENOMEM; - } - - if (nla_put(skb, IWL_TM_ATTR_TRACE_ADDR, - sizeof(tst->trace.dma_addr), - (u64 *)&tst->trace.dma_addr)) - goto nla_put_failure; - - status = iwl_test_reply(tst, skb); - if (status < 0) - IWL_ERR(tst->trans, "Error sending msg : %d\n", status); - - tst->trace.nchunks = DIV_ROUND_UP(tst->trace.size, - DUMP_CHUNK_SIZE); - - return status; - -nla_put_failure: - kfree_skb(skb); - if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) == - IWL_TM_CMD_APP2DEV_BEGIN_TRACE) - iwl_test_trace_stop(tst); - return -EMSGSIZE; -} - -/* - * Handles indirect read from the periphery or the SRAM. The read is performed - * to a temporary buffer. The user space application should later issue a dump - */ -static int iwl_test_indirect_read(struct iwl_test *tst, u32 addr, u32 size) -{ - struct iwl_trans *trans = tst->trans; - unsigned long flags; - int i; - - if (size & 0x3) - return -EINVAL; - - tst->mem.size = size; - tst->mem.addr = kmalloc(tst->mem.size, GFP_KERNEL); - if (tst->mem.addr == NULL) - return -ENOMEM; - - /* Hard-coded periphery absolute address */ - if (IWL_ABS_PRPH_START <= addr && - addr < IWL_ABS_PRPH_START + PRPH_END) { - if (!iwl_trans_grab_nic_access(trans, false, &flags)) { - return -EIO; - } - iwl_write32(trans, HBUS_TARG_PRPH_RADDR, - addr | (3 << 24)); - for (i = 0; i < size; i += 4) - *(u32 *)(tst->mem.addr + i) = - iwl_read32(trans, HBUS_TARG_PRPH_RDAT); - iwl_trans_release_nic_access(trans, &flags); - } else { /* target memory (SRAM) */ - iwl_trans_read_mem(trans, addr, tst->mem.addr, - tst->mem.size / 4); - } - - tst->mem.nchunks = - DIV_ROUND_UP(tst->mem.size, DUMP_CHUNK_SIZE); - tst->mem.in_read = true; - return 0; - -} - -/* - * Handles indirect write to the periphery or SRAM. The is performed to a - * temporary buffer. - */ -static int iwl_test_indirect_write(struct iwl_test *tst, u32 addr, - u32 size, unsigned char *buf) -{ - struct iwl_trans *trans = tst->trans; - u32 val, i; - unsigned long flags; - - if (IWL_ABS_PRPH_START <= addr && - addr < IWL_ABS_PRPH_START + PRPH_END) { - /* Periphery writes can be 1-3 bytes long, or DWORDs */ - if (size < 4) { - memcpy(&val, buf, size); - if (!iwl_trans_grab_nic_access(trans, false, &flags)) - return -EIO; - iwl_write32(trans, HBUS_TARG_PRPH_WADDR, - (addr & 0x0000FFFF) | - ((size - 1) << 24)); - iwl_write32(trans, HBUS_TARG_PRPH_WDAT, val); - iwl_trans_release_nic_access(trans, &flags); - } else { - if (size % 4) - return -EINVAL; - for (i = 0; i < size; i += 4) - iwl_write_prph(trans, addr+i, - *(u32 *)(buf+i)); - } - } else if (iwl_test_valid_hw_addr(tst, addr)) { - iwl_trans_write_mem(trans, addr, buf, size / 4); - } else { - return -EINVAL; - } - return 0; -} - -/* - * Handles the user application commands for indirect read/write - * to/from the periphery or the SRAM. - */ -static int iwl_test_indirect_mem(struct iwl_test *tst, struct nlattr **tb) -{ - u32 addr, size, cmd; - unsigned char *buf; - - /* Both read and write should be blocked, for atomicity */ - if (tst->mem.in_read) - return -EBUSY; - - cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); - if (!tb[IWL_TM_ATTR_MEM_ADDR]) { - IWL_ERR(tst->trans, "Error finding memory offset address\n"); - return -ENOMSG; - } - addr = nla_get_u32(tb[IWL_TM_ATTR_MEM_ADDR]); - if (!tb[IWL_TM_ATTR_BUFFER_SIZE]) { - IWL_ERR(tst->trans, "Error finding size for memory reading\n"); - return -ENOMSG; - } - size = nla_get_u32(tb[IWL_TM_ATTR_BUFFER_SIZE]); - - if (cmd == IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ) { - return iwl_test_indirect_read(tst, addr, size); - } else { - if (!tb[IWL_TM_ATTR_BUFFER_DUMP]) - return -EINVAL; - buf = (unsigned char *)nla_data(tb[IWL_TM_ATTR_BUFFER_DUMP]); - return iwl_test_indirect_write(tst, addr, size, buf); - } -} - -/* - * Enable notifications to user space - */ -static int iwl_test_notifications(struct iwl_test *tst, - struct nlattr **tb) -{ - tst->notify = nla_get_flag(tb[IWL_TM_ATTR_ENABLE_NOTIFICATION]); - return 0; -} - -/* - * Handles the request to get the device id - */ -static int iwl_test_get_dev_id(struct iwl_test *tst, struct nlattr **tb) -{ - u32 devid = tst->trans->hw_id; - struct sk_buff *skb; - int status; - - IWL_DEBUG_INFO(tst->trans, "hw version: 0x%x\n", devid); - - skb = iwl_test_alloc_reply(tst, 20); - if (!skb) { - IWL_ERR(tst->trans, "Memory allocation fail\n"); - return -ENOMEM; - } - - if (nla_put_u32(skb, IWL_TM_ATTR_DEVICE_ID, devid)) - goto nla_put_failure; - status = iwl_test_reply(tst, skb); - if (status < 0) - IWL_ERR(tst->trans, "Error sending msg : %d\n", status); - - return 0; - -nla_put_failure: - kfree_skb(skb); - return -EMSGSIZE; -} - -/* - * Handles the request to get the FW version - */ -static int iwl_test_get_fw_ver(struct iwl_test *tst, struct nlattr **tb) -{ - struct sk_buff *skb; - int status; - u32 ver = iwl_test_fw_ver(tst); - - IWL_DEBUG_INFO(tst->trans, "uCode version raw: 0x%x\n", ver); - - skb = iwl_test_alloc_reply(tst, 20); - if (!skb) { - IWL_ERR(tst->trans, "Memory allocation fail\n"); - return -ENOMEM; - } - - if (nla_put_u32(skb, IWL_TM_ATTR_FW_VERSION, ver)) - goto nla_put_failure; - - status = iwl_test_reply(tst, skb); - if (status < 0) - IWL_ERR(tst->trans, "Error sending msg : %d\n", status); - - return 0; - -nla_put_failure: - kfree_skb(skb); - return -EMSGSIZE; -} - -/* - * Parse the netlink message and validate that the IWL_TM_ATTR_CMD exists - */ -int iwl_test_parse(struct iwl_test *tst, struct nlattr **tb, - void *data, int len) -{ - int result; - - result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, - iwl_testmode_gnl_msg_policy); - if (result) { - IWL_ERR(tst->trans, "Fail parse gnl msg: %d\n", result); - return result; - } - - /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ - if (!tb[IWL_TM_ATTR_COMMAND]) { - IWL_ERR(tst->trans, "Missing testmode command type\n"); - return -ENOMSG; - } - return 0; -} -IWL_EXPORT_SYMBOL(iwl_test_parse); - -/* - * Handle test commands. - * Returns 1 for unknown commands (not handled by the test object); negative - * value in case of error. - */ -int iwl_test_handle_cmd(struct iwl_test *tst, struct nlattr **tb) -{ - int result; - - switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { - case IWL_TM_CMD_APP2DEV_UCODE: - IWL_DEBUG_INFO(tst->trans, "test cmd to uCode\n"); - result = iwl_test_fw_cmd(tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: - case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: - IWL_DEBUG_INFO(tst->trans, "test cmd to register\n"); - result = iwl_test_reg(tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: - IWL_DEBUG_INFO(tst->trans, "test uCode trace cmd to driver\n"); - result = iwl_test_trace_begin(tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_END_TRACE: - iwl_test_trace_stop(tst); - result = 0; - break; - - case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ: - case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE: - IWL_DEBUG_INFO(tst->trans, "test indirect memory cmd\n"); - result = iwl_test_indirect_mem(tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_NOTIFICATIONS: - IWL_DEBUG_INFO(tst->trans, "test notifications cmd\n"); - result = iwl_test_notifications(tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: - IWL_DEBUG_INFO(tst->trans, "test get FW ver cmd\n"); - result = iwl_test_get_fw_ver(tst, tb); - break; - - case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: - IWL_DEBUG_INFO(tst->trans, "test Get device ID cmd\n"); - result = iwl_test_get_dev_id(tst, tb); - break; - - default: - IWL_DEBUG_INFO(tst->trans, "Unknown test command\n"); - result = 1; - break; - } - return result; -} -IWL_EXPORT_SYMBOL(iwl_test_handle_cmd); - -static int iwl_test_trace_dump(struct iwl_test *tst, struct sk_buff *skb, - struct netlink_callback *cb) -{ - int idx, length; - - if (!tst->trace.enabled || !tst->trace.trace_addr) - return -EFAULT; - - idx = cb->args[4]; - if (idx >= tst->trace.nchunks) - return -ENOENT; - - length = DUMP_CHUNK_SIZE; - if (((idx + 1) == tst->trace.nchunks) && - (tst->trace.size % DUMP_CHUNK_SIZE)) - length = tst->trace.size % - DUMP_CHUNK_SIZE; - - if (nla_put(skb, IWL_TM_ATTR_TRACE_DUMP, length, - tst->trace.trace_addr + (DUMP_CHUNK_SIZE * idx))) - goto nla_put_failure; - - cb->args[4] = ++idx; - return 0; - - nla_put_failure: - return -ENOBUFS; -} - -static int iwl_test_buffer_dump(struct iwl_test *tst, struct sk_buff *skb, - struct netlink_callback *cb) -{ - int idx, length; - - if (!tst->mem.in_read) - return -EFAULT; - - idx = cb->args[4]; - if (idx >= tst->mem.nchunks) { - iwl_test_mem_stop(tst); - return -ENOENT; - } - - length = DUMP_CHUNK_SIZE; - if (((idx + 1) == tst->mem.nchunks) && - (tst->mem.size % DUMP_CHUNK_SIZE)) - length = tst->mem.size % DUMP_CHUNK_SIZE; - - if (nla_put(skb, IWL_TM_ATTR_BUFFER_DUMP, length, - tst->mem.addr + (DUMP_CHUNK_SIZE * idx))) - goto nla_put_failure; - - cb->args[4] = ++idx; - return 0; - - nla_put_failure: - return -ENOBUFS; -} - -/* - * Handle dump commands. - * Returns 1 for unknown commands (not handled by the test object); negative - * value in case of error. - */ -int iwl_test_dump(struct iwl_test *tst, u32 cmd, struct sk_buff *skb, - struct netlink_callback *cb) -{ - int result; - - switch (cmd) { - case IWL_TM_CMD_APP2DEV_READ_TRACE: - IWL_DEBUG_INFO(tst->trans, "uCode trace cmd\n"); - result = iwl_test_trace_dump(tst, skb, cb); - break; - - case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP: - IWL_DEBUG_INFO(tst->trans, "testmode sram dump cmd\n"); - result = iwl_test_buffer_dump(tst, skb, cb); - break; - - default: - result = 1; - break; - } - return result; -} -IWL_EXPORT_SYMBOL(iwl_test_dump); - -/* - * Multicast a spontaneous messages from the device to the user space. - */ -static void iwl_test_send_rx(struct iwl_test *tst, - struct iwl_rx_cmd_buffer *rxb) -{ - struct sk_buff *skb; - struct iwl_rx_packet *data; - int length; - - data = rxb_addr(rxb); - length = le32_to_cpu(data->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - - /* the length doesn't include len_n_flags field, so add it manually */ - length += sizeof(__le32); - - skb = iwl_test_alloc_event(tst, length + 20); - if (skb == NULL) { - IWL_ERR(tst->trans, "Out of memory for message to user\n"); - return; - } - - if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, - IWL_TM_CMD_DEV2APP_UCODE_RX_PKT) || - nla_put(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data)) - goto nla_put_failure; - - iwl_test_event(tst, skb); - return; - -nla_put_failure: - kfree_skb(skb); - IWL_ERR(tst->trans, "Ouch, overran buffer, check allocation!\n"); -} - -/* - * Called whenever a Rx frames is recevied from the device. If notifications to - * the user space are requested, sends the frames to the user. - */ -void iwl_test_rx(struct iwl_test *tst, struct iwl_rx_cmd_buffer *rxb) -{ - if (tst->notify) - iwl_test_send_rx(tst, rxb); -} -IWL_EXPORT_SYMBOL(iwl_test_rx); diff --git a/drivers/net/wireless/iwlwifi/iwl-test.h b/drivers/net/wireless/iwlwifi/iwl-test.h deleted file mode 100644 index 8fbd2170484..00000000000 --- a/drivers/net/wireless/iwlwifi/iwl-test.h +++ /dev/null @@ -1,161 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ - -#ifndef __IWL_TEST_H__ -#define __IWL_TEST_H__ - -#include <linux/types.h> -#include "iwl-trans.h" - -struct iwl_test_trace { - u32 size; - u32 tsize; - u32 nchunks; - u8 *cpu_addr; - u8 *trace_addr; - dma_addr_t dma_addr; - bool enabled; -}; - -struct iwl_test_mem { - u32 size; - u32 nchunks; - u8 *addr; - bool in_read; -}; - -/* - * struct iwl_test_ops: callback to the op mode - * - * The structure defines the callbacks that the op_mode should handle, - * inorder to handle logic that is out of the scope of iwl_test. The - * op_mode must set all the callbacks. - - * @send_cmd: handler that is used by the test object to request the - * op_mode to send a command to the fw. - * - * @valid_hw_addr: handler that is used by the test object to request the - * op_mode to check if the given address is a valid address. - * - * @get_fw_ver: handler used to get the FW version. - * - * @alloc_reply: handler used by the test object to request the op_mode - * to allocate an skb for sending a reply to the user, and initialize - * the skb. It is assumed that the test object only fills the required - * attributes. - * - * @reply: handler used by the test object to request the op_mode to reply - * to a request. The skb is an skb previously allocated by the the - * alloc_reply callback. - I - * @alloc_event: handler used by the test object to request the op_mode - * to allocate an skb for sending an event, and initialize - * the skb. It is assumed that the test object only fills the required - * attributes. - * - * @reply: handler used by the test object to request the op_mode to send - * an event. The skb is an skb previously allocated by the the - * alloc_event callback. - */ -struct iwl_test_ops { - int (*send_cmd)(struct iwl_op_mode *op_modes, - struct iwl_host_cmd *cmd); - bool (*valid_hw_addr)(u32 addr); - u32 (*get_fw_ver)(struct iwl_op_mode *op_mode); - - struct sk_buff *(*alloc_reply)(struct iwl_op_mode *op_mode, int len); - int (*reply)(struct iwl_op_mode *op_mode, struct sk_buff *skb); - struct sk_buff* (*alloc_event)(struct iwl_op_mode *op_mode, int len); - void (*event)(struct iwl_op_mode *op_mode, struct sk_buff *skb); -}; - -struct iwl_test { - struct iwl_trans *trans; - struct iwl_test_ops *ops; - struct iwl_test_trace trace; - struct iwl_test_mem mem; - bool notify; -}; - -void iwl_test_init(struct iwl_test *tst, struct iwl_trans *trans, - struct iwl_test_ops *ops); - -void iwl_test_free(struct iwl_test *tst); - -int iwl_test_parse(struct iwl_test *tst, struct nlattr **tb, - void *data, int len); - -int iwl_test_handle_cmd(struct iwl_test *tst, struct nlattr **tb); - -int iwl_test_dump(struct iwl_test *tst, u32 cmd, struct sk_buff *skb, - struct netlink_callback *cb); - -void iwl_test_rx(struct iwl_test *tst, struct iwl_rx_cmd_buffer *rxb); - -static inline void iwl_test_enable_notifications(struct iwl_test *tst, - bool enable) -{ - tst->notify = enable; -} - -#endif diff --git a/drivers/net/wireless/iwlwifi/iwl-testmode.h b/drivers/net/wireless/iwlwifi/iwl-testmode.h deleted file mode 100644 index 98f48a9afc9..00000000000 --- a/drivers/net/wireless/iwlwifi/iwl-testmode.h +++ /dev/null @@ -1,309 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2010 - 2013 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ -#ifndef __IWL_TESTMODE_H__ -#define __IWL_TESTMODE_H__ - -#include <linux/types.h> - - -/* - * Commands from user space to kernel space(IWL_TM_CMD_ID_APP2DEV_XX) and - * from and kernel space to user space(IWL_TM_CMD_ID_DEV2APP_XX). - * The command ID is carried with IWL_TM_ATTR_COMMAND. - * - * @IWL_TM_CMD_APP2DEV_UCODE: - * commands from user application to the uCode, - * the actual uCode host command ID is carried with - * IWL_TM_ATTR_UCODE_CMD_ID - * - * @IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: - * @IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: - * @IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: - * commands from user applicaiton to access register - * - * @IWL_TM_CMD_APP2DEV_GET_DEVICENAME: retrieve device name - * @IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: load initial uCode image - * @IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: perform calibration - * @IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: load runtime uCode image - * @IWL_TM_CMD_APP2DEV_GET_EEPROM: request EEPROM data - * @IWL_TM_CMD_APP2DEV_FIXRATE_REQ: set fix MCS - * commands fom user space for pure driver level operations - * - * @IWL_TM_CMD_APP2DEV_BEGIN_TRACE: - * @IWL_TM_CMD_APP2DEV_END_TRACE: - * @IWL_TM_CMD_APP2DEV_READ_TRACE: - * commands fom user space for uCode trace operations - * - * @IWL_TM_CMD_DEV2APP_SYNC_RSP: - * commands from kernel space to carry the synchronous response - * to user application - * @IWL_TM_CMD_DEV2APP_UCODE_RX_PKT: - * commands from kernel space to multicast the spontaneous messages - * to user application, or reply of host commands - * @IWL_TM_CMD_DEV2APP_EEPROM_RSP: - * commands from kernel space to carry the eeprom response - * to user application - * - * @IWL_TM_CMD_APP2DEV_OWNERSHIP: - * commands from user application to own change the ownership of the uCode - * if application has the ownership, the only host command from - * testmode will deliver to uCode. Default owner is driver - * - * @IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: load Wake On Wireless LAN uCode image - * @IWL_TM_CMD_APP2DEV_GET_FW_VERSION: retrieve uCode version - * @IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: retrieve ID information in device - * @IWL_TM_CMD_APP2DEV_GET_FW_INFO: - * retrieve information of existing loaded uCode image - * - * @IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ: - * @IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP: - * @IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE: - * Commands to read/write data from periphery or SRAM memory ranges. - * Fore reading, a READ command is sent from the userspace and the data - * is returned when the user calls a DUMP command. - * For writing, only a WRITE command is used. - * @IWL_TM_CMD_APP2DEV_NOTIFICATIONS: - * Command to enable/disable notifications (currently RX packets) from the - * driver to userspace. - */ -enum iwl_tm_cmd_t { - IWL_TM_CMD_APP2DEV_UCODE = 1, - IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32 = 2, - IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32 = 3, - IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8 = 4, - IWL_TM_CMD_APP2DEV_GET_DEVICENAME = 5, - IWL_TM_CMD_APP2DEV_LOAD_INIT_FW = 6, - IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB = 7, - IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW = 8, - IWL_TM_CMD_APP2DEV_GET_EEPROM = 9, - IWL_TM_CMD_APP2DEV_FIXRATE_REQ = 10, - IWL_TM_CMD_APP2DEV_BEGIN_TRACE = 11, - IWL_TM_CMD_APP2DEV_END_TRACE = 12, - IWL_TM_CMD_APP2DEV_READ_TRACE = 13, - IWL_TM_CMD_DEV2APP_SYNC_RSP = 14, - IWL_TM_CMD_DEV2APP_UCODE_RX_PKT = 15, - IWL_TM_CMD_DEV2APP_EEPROM_RSP = 16, - IWL_TM_CMD_APP2DEV_OWNERSHIP = 17, - RESERVED_18 = 18, - RESERVED_19 = 19, - RESERVED_20 = 20, - RESERVED_21 = 21, - IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW = 22, - IWL_TM_CMD_APP2DEV_GET_FW_VERSION = 23, - IWL_TM_CMD_APP2DEV_GET_DEVICE_ID = 24, - IWL_TM_CMD_APP2DEV_GET_FW_INFO = 25, - IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ = 26, - IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP = 27, - IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE = 28, - IWL_TM_CMD_APP2DEV_NOTIFICATIONS = 29, - IWL_TM_CMD_MAX = 30, -}; - -/* - * Atrribute filed in testmode command - * See enum iwl_tm_cmd_t. - * - * @IWL_TM_ATTR_NOT_APPLICABLE: - * The attribute is not applicable or invalid - * @IWL_TM_ATTR_COMMAND: - * From user space to kernel space: - * the command either destines to ucode, driver, or register; - * From kernel space to user space: - * the command either carries synchronous response, - * or the spontaneous message multicast from the device; - * - * @IWL_TM_ATTR_UCODE_CMD_ID: - * @IWL_TM_ATTR_UCODE_CMD_DATA: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE, - * The mandatory fields are : - * IWL_TM_ATTR_UCODE_CMD_ID for recognizable command ID; - * IWL_TM_ATTR_UCODE_CMD_DATA for the actual command payload - * to the ucode - * - * @IWL_TM_ATTR_REG_OFFSET: - * @IWL_TM_ATTR_REG_VALUE8: - * @IWL_TM_ATTR_REG_VALUE32: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_XXX, - * The mandatory fields are: - * IWL_TM_ATTR_REG_OFFSET for the offset of the target register; - * IWL_TM_ATTR_REG_VALUE8 or IWL_TM_ATTR_REG_VALUE32 for value - * - * @IWL_TM_ATTR_SYNC_RSP: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_SYNC_RSP, - * The mandatory fields are: - * IWL_TM_ATTR_SYNC_RSP for the data content responding to the user - * application command - * - * @IWL_TM_ATTR_UCODE_RX_PKT: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_UCODE_RX_PKT, - * The mandatory fields are: - * IWL_TM_ATTR_UCODE_RX_PKT for the data content multicast to the user - * application - * - * @IWL_TM_ATTR_EEPROM: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_DEV2APP_EEPROM, - * The mandatory fields are: - * IWL_TM_ATTR_EEPROM for the data content responging to the user - * application - * - * @IWL_TM_ATTR_TRACE_ADDR: - * @IWL_TM_ATTR_TRACE_SIZE: - * @IWL_TM_ATTR_TRACE_DUMP: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_XXX_TRACE, - * The mandatory fields are: - * IWL_TM_ATTR_MEM_TRACE_ADDR for the trace address - * IWL_TM_ATTR_MEM_TRACE_SIZE for the trace buffer size - * IWL_TM_ATTR_MEM_TRACE_DUMP for the trace dump - * - * @IWL_TM_ATTR_FIXRATE: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_FIXRATE_REQ, - * The mandatory fields are: - * IWL_TM_ATTR_FIXRATE for the fixed rate - * - * @IWL_TM_ATTR_UCODE_OWNER: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_OWNERSHIP, - * The mandatory fields are: - * IWL_TM_ATTR_UCODE_OWNER for the new owner - * - * @IWL_TM_ATTR_MEM_ADDR: - * @IWL_TM_ATTR_BUFFER_SIZE: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ - * or IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE. - * The mandatory fields are: - * IWL_TM_ATTR_MEM_ADDR for the address in SRAM/periphery to read/write - * IWL_TM_ATTR_BUFFER_SIZE for the buffer size of data to read/write. - * - * @IWL_TM_ATTR_BUFFER_DUMP: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP, - * IWL_TM_ATTR_BUFFER_DUMP is used for the data that was read. - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE, - * this attribute contains the data to write. - * - * @IWL_TM_ATTR_FW_VERSION: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_GET_FW_VERSION, - * IWL_TM_ATTR_FW_VERSION for the uCode version - * - * @IWL_TM_ATTR_DEVICE_ID: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_GET_DEVICE_ID, - * IWL_TM_ATTR_DEVICE_ID for the device ID information - * - * @IWL_TM_ATTR_FW_TYPE: - * @IWL_TM_ATTR_FW_INST_SIZE: - * @IWL_TM_ATTR_FW_DATA_SIZE: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_GET_FW_INFO, - * The mandatory fields are: - * IWL_TM_ATTR_FW_TYPE for the uCode type (INIT/RUNTIME/...) - * IWL_TM_ATTR_FW_INST_SIZE for the size of instruction section - * IWL_TM_ATTR_FW_DATA_SIZE for the size of data section - * - * @IWL_TM_ATTR_UCODE_CMD_SKB: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_UCODE this flag - * indicates that the user wants to receive the response of the command - * in a reply SKB. If it's not present, the response is not returned. - * @IWL_TM_ATTR_ENABLE_NOTIFICATIONS: - * When IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_NOTIFICATIONS, this - * flag enables (if present) or disables (if not) the forwarding - * to userspace. - */ -enum iwl_tm_attr_t { - IWL_TM_ATTR_NOT_APPLICABLE = 0, - IWL_TM_ATTR_COMMAND = 1, - IWL_TM_ATTR_UCODE_CMD_ID = 2, - IWL_TM_ATTR_UCODE_CMD_DATA = 3, - IWL_TM_ATTR_REG_OFFSET = 4, - IWL_TM_ATTR_REG_VALUE8 = 5, - IWL_TM_ATTR_REG_VALUE32 = 6, - IWL_TM_ATTR_SYNC_RSP = 7, - IWL_TM_ATTR_UCODE_RX_PKT = 8, - IWL_TM_ATTR_EEPROM = 9, - IWL_TM_ATTR_TRACE_ADDR = 10, - IWL_TM_ATTR_TRACE_SIZE = 11, - IWL_TM_ATTR_TRACE_DUMP = 12, - IWL_TM_ATTR_FIXRATE = 13, - IWL_TM_ATTR_UCODE_OWNER = 14, - IWL_TM_ATTR_MEM_ADDR = 15, - IWL_TM_ATTR_BUFFER_SIZE = 16, - IWL_TM_ATTR_BUFFER_DUMP = 17, - IWL_TM_ATTR_FW_VERSION = 18, - IWL_TM_ATTR_DEVICE_ID = 19, - IWL_TM_ATTR_FW_TYPE = 20, - IWL_TM_ATTR_FW_INST_SIZE = 21, - IWL_TM_ATTR_FW_DATA_SIZE = 22, - IWL_TM_ATTR_UCODE_CMD_SKB = 23, - IWL_TM_ATTR_ENABLE_NOTIFICATION = 24, - IWL_TM_ATTR_MAX = 25, -}; - -/* uCode trace buffer */ -#define TRACE_BUFF_SIZE_MAX 0x200000 -#define TRACE_BUFF_SIZE_MIN 0x20000 -#define TRACE_BUFF_SIZE_DEF TRACE_BUFF_SIZE_MIN -#define TRACE_BUFF_PADD 0x2000 - -/* Maximum data size of each dump it packet */ -#define DUMP_CHUNK_SIZE (PAGE_SIZE - 1024) - -/* Address offset of data segment in SRAM */ -#define SRAM_DATA_SEG_OFFSET 0x800000 - -#endif diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h index 7a13790b5bf..34d49e171fb 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -70,6 +70,7 @@ #include "iwl-debug.h" #include "iwl-config.h" #include "iwl-fw.h" +#include "iwl-op-mode.h" /** * DOC: Transport layer - what is it ? @@ -100,8 +101,7 @@ * start_fw * * 5) Then when finished (or reset): - * stop_fw (a.k.a. stop device for the moment) - * stop_hw + * stop_device * * 6) Eventually, the free function will be called. */ @@ -176,20 +176,38 @@ struct iwl_rx_packet { u8 data[]; } __packed; +static inline u32 iwl_rx_packet_len(const struct iwl_rx_packet *pkt) +{ + return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; +} + +static inline u32 iwl_rx_packet_payload_len(const struct iwl_rx_packet *pkt) +{ + return iwl_rx_packet_len(pkt) - sizeof(pkt->hdr); +} + /** * enum CMD_MODE - how to send the host commands ? * - * @CMD_SYNC: The caller will be stalled until the fw responds to the command - * @CMD_ASYNC: Return right away and don't want for the response - * @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the - * response. The caller needs to call iwl_free_resp when done. - * @CMD_ON_DEMAND: This command is sent by the test mode pipe. + * @CMD_ASYNC: Return right away and don't wait for the response + * @CMD_WANT_SKB: Not valid with CMD_ASYNC. The caller needs the buffer of + * the response. The caller needs to call iwl_free_resp when done. + * @CMD_HIGH_PRIO: The command is high priority - it goes to the front of the + * command queue, but after other high priority commands. valid only + * with CMD_ASYNC. + * @CMD_SEND_IN_IDLE: The command should be sent even when the trans is idle. + * @CMD_MAKE_TRANS_IDLE: The command response should mark the trans as idle. + * @CMD_WAKE_UP_TRANS: The command response should wake up the trans + * (i.e. mark it as non-idle). */ enum CMD_MODE { - CMD_SYNC = 0, CMD_ASYNC = BIT(0), CMD_WANT_SKB = BIT(1), - CMD_ON_DEMAND = BIT(2), + CMD_SEND_IN_RFKILL = BIT(2), + CMD_HIGH_PRIO = BIT(3), + CMD_SEND_IN_IDLE = BIT(4), + CMD_MAKE_TRANS_IDLE = BIT(5), + CMD_WAKE_UP_TRANS = BIT(6), }; #define DEF_CMD_PAYLOAD_SIZE 320 @@ -219,7 +237,7 @@ struct iwl_device_cmd { * * @IWL_HCMD_DFL_NOCOPY: By default, the command is copied to the host command's * ring. The transport layer doesn't map the command's buffer to DMA, but - * rather copies it to an previously allocated DMA buffer. This flag tells + * rather copies it to a previously allocated DMA buffer. This flag tells * the transport layer not to copy the command, but to map the existing * buffer (that is passed in) instead. This saves the memcpy and allows * commands that are bigger than the fixed buffer to be submitted. @@ -244,7 +262,7 @@ enum iwl_hcmd_dataflag { * @handler_status: return value of the handler of the command * (put in setup_rx_handlers) - valid for SYNC mode only * @flags: can be CMD_* - * @len: array of the lenths of the chunks in data + * @len: array of the lengths of the chunks in data * @dataflags: IWL_HCMD_DFL_* * @id: id of the host command */ @@ -319,6 +337,29 @@ enum iwl_d3_status { }; /** + * enum iwl_trans_status: transport status flags + * @STATUS_SYNC_HCMD_ACTIVE: a SYNC command is being processed + * @STATUS_DEVICE_ENABLED: APM is enabled + * @STATUS_TPOWER_PMI: the device might be asleep (need to wake it up) + * @STATUS_INT_ENABLED: interrupts are enabled + * @STATUS_RFKILL: the HW RFkill switch is in KILL position + * @STATUS_FW_ERROR: the fw is in error state + * @STATUS_TRANS_GOING_IDLE: shutting down the trans, only special commands + * are sent + * @STATUS_TRANS_IDLE: the trans is idle - general commands are not to be sent + */ +enum iwl_trans_status { + STATUS_SYNC_HCMD_ACTIVE, + STATUS_DEVICE_ENABLED, + STATUS_TPOWER_PMI, + STATUS_INT_ENABLED, + STATUS_RFKILL, + STATUS_FW_ERROR, + STATUS_TRANS_GOING_IDLE, + STATUS_TRANS_IDLE, +}; + +/** * struct iwl_trans_config - transport configuration * * @op_mode: pointer to the upper layer. @@ -345,12 +386,12 @@ struct iwl_trans_config { u8 cmd_queue; u8 cmd_fifo; const u8 *no_reclaim_cmds; - int n_no_reclaim_cmds; + unsigned int n_no_reclaim_cmds; bool rx_buf_size_8k; bool bc_table_dword; unsigned int queue_watchdog_timeout; - const char **command_names; + const char *const *command_names; }; struct iwl_trans; @@ -362,9 +403,7 @@ struct iwl_trans; * * @start_hw: starts the HW- from that point on, the HW can send interrupts * May sleep - * @stop_hw: stops the HW- from that point on, the HW will be in low power but - * will still issue interrupt if the HW RF kill is triggered unless - * op_mode_leaving is true. + * @op_mode_leave: Turn off the HW RF kill indication if on * May sleep * @start_fw: allocates and inits all the resources for the transport * layer. Also kick a fw image. @@ -372,8 +411,11 @@ struct iwl_trans; * @fw_alive: called when the fw sends alive notification. If the fw provides * the SCD base address in SRAM, then provide it here, or 0 otherwise. * May sleep - * @stop_device:stops the whole device (embedded CPU put to reset) - * May sleep + * @stop_device: stops the whole device (embedded CPU put to reset) and stops + * the HW. From that point on, the HW will be in low power but will still + * issue interrupt if the HW RF kill is triggered. This callback must do + * the right thing and not crash even if start_hw() was called but not + * start_fw(). May sleep * @d3_suspend: put the device into the correct mode for WoWLAN during * suspend. This is optional, if not implemented WoWLAN will not be * supported. This callback may sleep. @@ -383,7 +425,7 @@ struct iwl_trans; * @send_cmd:send a host command. Must return -ERFKILL if RFkill is asserted. * If RFkill is asserted in the middle of a SYNC host command, it must * return -ERFKILL straight away. - * May sleep only if CMD_SYNC is set + * May sleep only if CMD_ASYNC is not set * @tx: send an skb * Must be atomic * @reclaim: free packet until ssn. Returns a list of freed packets. @@ -393,12 +435,9 @@ struct iwl_trans; * this one. The op_mode must not configure the HCMD queue. May sleep. * @txq_disable: de-configure a Tx queue to send AMPDUs * Must be atomic - * @wait_tx_queue_empty: wait until all tx queues are empty - * May sleep + * @wait_tx_queue_empty: wait until tx queues are empty. May sleep. * @dbgfs_register: add the dbgfs files under this directory. Files will be * automatically deleted. - * @suspend: stop the device unless WoWLAN is configured - * @resume: resume activity of the device * @write8: write a u8 to a register at offset ofs from the BAR * @write32: write a u32 to a register at offset ofs from the BAR * @read32: read a u32 register at offset ofs from the BAR @@ -417,18 +456,31 @@ struct iwl_trans; * @release_nic_access: let the NIC go to sleep. The "flags" parameter * must be the same one that was sent before to the grab_nic_access. * @set_bits_mask - set SRAM register according to value and mask. + * @ref: grab a reference to the transport/FW layers, disallowing + * certain low power states + * @unref: release a reference previously taken with @ref. Note that + * initially the reference count is 1, making an initial @unref + * necessary to allow low power states. + * @dump_data: fill a data dump with debug data, maybe containing last + * TX'ed commands and similar. When called with a NULL buffer and + * zero buffer length, provide only the (estimated) required buffer + * length. Return the used buffer length. + * Note that the transport must fill in the proper file headers. */ struct iwl_trans_ops { int (*start_hw)(struct iwl_trans *iwl_trans); - void (*stop_hw)(struct iwl_trans *iwl_trans, bool op_mode_leaving); + void (*op_mode_leave)(struct iwl_trans *iwl_trans); int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw, bool run_in_rfkill); + int (*update_sf)(struct iwl_trans *trans, + struct iwl_sf_region *st_fwrd_space); void (*fw_alive)(struct iwl_trans *trans, u32 scd_addr); void (*stop_device)(struct iwl_trans *trans); - void (*d3_suspend)(struct iwl_trans *trans); - int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status); + void (*d3_suspend)(struct iwl_trans *trans, bool test); + int (*d3_resume)(struct iwl_trans *trans, enum iwl_d3_status *status, + bool test); int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); @@ -442,11 +494,8 @@ struct iwl_trans_ops { void (*txq_disable)(struct iwl_trans *trans, int queue); int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir); - int (*wait_tx_queue_empty)(struct iwl_trans *trans); -#ifdef CONFIG_PM_SLEEP - int (*suspend)(struct iwl_trans *trans); - int (*resume)(struct iwl_trans *trans); -#endif + int (*wait_tx_queue_empty)(struct iwl_trans *trans, u32 txq_bm); + void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val); void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val); u32 (*read32)(struct iwl_trans *trans, u32 ofs); @@ -455,7 +504,7 @@ struct iwl_trans_ops { int (*read_mem)(struct iwl_trans *trans, u32 addr, void *buf, int dwords); int (*write_mem)(struct iwl_trans *trans, u32 addr, - void *buf, int dwords); + const void *buf, int dwords); void (*configure)(struct iwl_trans *trans, const struct iwl_trans_config *trans_cfg); void (*set_pmi)(struct iwl_trans *trans, bool state); @@ -465,6 +514,12 @@ struct iwl_trans_ops { unsigned long *flags); void (*set_bits_mask)(struct iwl_trans *trans, u32 reg, u32 mask, u32 value); + void (*ref)(struct iwl_trans *trans); + void (*unref)(struct iwl_trans *trans); + +#ifdef CONFIG_IWLWIFI_DEBUGFS + u32 (*dump_data)(struct iwl_trans *trans, void *buf, u32 buflen); +#endif }; /** @@ -484,6 +539,7 @@ enum iwl_trans_state { * @ops - pointer to iwl_trans_ops * @op_mode - pointer to the op_mode * @cfg - pointer to the configuration + * @status: a bit-mask of transport status flags * @dev - pointer to struct device * that represents the device * @hw_id: a u32 with the ID of the device / subdevice. * Set during transport allocation. @@ -498,12 +554,14 @@ enum iwl_trans_state { * starting the firmware, used for tracing * @rx_mpdu_cmd_hdr_size: used for tracing, amount of data before the * start of the 802.11 header in the @rx_mpdu_cmd + * @dflt_pwr_limit: default power limit fetched from the platform (ACPI) */ struct iwl_trans { const struct iwl_trans_ops *ops; struct iwl_op_mode *op_mode; const struct iwl_cfg *cfg; enum iwl_trans_state state; + unsigned long status; struct device *dev; u32 hw_rev; @@ -525,6 +583,8 @@ struct iwl_trans { struct lockdep_map sync_cmd_lockdep_map; #endif + u64 dflt_pwr_limit; + /* pointer to trans specific struct */ /*Ensure that this pointer will always be aligned to sizeof pointer */ char trans_specific[0] __aligned(sizeof(void *)); @@ -545,15 +605,14 @@ static inline int iwl_trans_start_hw(struct iwl_trans *trans) return trans->ops->start_hw(trans); } -static inline void iwl_trans_stop_hw(struct iwl_trans *trans, - bool op_mode_leaving) +static inline void iwl_trans_op_mode_leave(struct iwl_trans *trans) { might_sleep(); - trans->ops->stop_hw(trans, op_mode_leaving); + if (trans->ops->op_mode_leave) + trans->ops->op_mode_leave(trans); - if (op_mode_leaving) - trans->op_mode = NULL; + trans->op_mode = NULL; trans->state = IWL_TRANS_NO_FW; } @@ -575,9 +634,21 @@ static inline int iwl_trans_start_fw(struct iwl_trans *trans, WARN_ON_ONCE(!trans->rx_mpdu_cmd); + clear_bit(STATUS_FW_ERROR, &trans->status); return trans->ops->start_fw(trans, fw, run_in_rfkill); } +static inline int iwl_trans_update_sf(struct iwl_trans *trans, + struct iwl_sf_region *st_fwrd_space) +{ + might_sleep(); + + if (trans->ops->update_sf) + return trans->ops->update_sf(trans, st_fwrd_space); + + return 0; +} + static inline void iwl_trans_stop_device(struct iwl_trans *trans) { might_sleep(); @@ -587,26 +658,58 @@ static inline void iwl_trans_stop_device(struct iwl_trans *trans) trans->state = IWL_TRANS_NO_FW; } -static inline void iwl_trans_d3_suspend(struct iwl_trans *trans) +static inline void iwl_trans_d3_suspend(struct iwl_trans *trans, bool test) { might_sleep(); - trans->ops->d3_suspend(trans); + trans->ops->d3_suspend(trans, test); } static inline int iwl_trans_d3_resume(struct iwl_trans *trans, - enum iwl_d3_status *status) + enum iwl_d3_status *status, + bool test) { might_sleep(); - return trans->ops->d3_resume(trans, status); + return trans->ops->d3_resume(trans, status, test); +} + +static inline void iwl_trans_ref(struct iwl_trans *trans) +{ + if (trans->ops->ref) + trans->ops->ref(trans); +} + +static inline void iwl_trans_unref(struct iwl_trans *trans) +{ + if (trans->ops->unref) + trans->ops->unref(trans); +} + +#ifdef CONFIG_IWLWIFI_DEBUGFS +static inline u32 iwl_trans_dump_data(struct iwl_trans *trans, + void *buf, u32 buflen) +{ + if (!trans->ops->dump_data) + return 0; + return trans->ops->dump_data(trans, buf, buflen); } +#endif static inline int iwl_trans_send_cmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd) { int ret; - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); + if (unlikely(!(cmd->flags & CMD_SEND_IN_RFKILL) && + test_bit(STATUS_RFKILL, &trans->status))) + return -ERFKILL; + + if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) + return -EIO; + + if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) { + IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); + return -EIO; + } if (!(cmd->flags & CMD_ASYNC)) lock_map_acquire_read(&trans->sync_cmd_lockdep_map); @@ -642,8 +745,11 @@ static inline void iwl_trans_free_tx_cmd(struct iwl_trans *trans, static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_device_cmd *dev_cmd, int queue) { - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); + if (unlikely(test_bit(STATUS_FW_ERROR, &trans->status))) + return -EIO; + + if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) + IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); return trans->ops->tx(trans, skb, dev_cmd, queue); } @@ -651,17 +757,14 @@ static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, static inline void iwl_trans_reclaim(struct iwl_trans *trans, int queue, int ssn, struct sk_buff_head *skbs) { - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); + if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) + IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); trans->ops->reclaim(trans, queue, ssn, skbs); } static inline void iwl_trans_txq_disable(struct iwl_trans *trans, int queue) { - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); - trans->ops->txq_disable(trans, queue); } @@ -671,8 +774,8 @@ static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue, { might_sleep(); - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); + if (unlikely((trans->state != IWL_TRANS_FW_ALIVE))) + IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); trans->ops->txq_enable(trans, queue, fifo, sta_id, tid, frame_limit, ssn); @@ -685,12 +788,13 @@ static inline void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue, IWL_MAX_TID_COUNT, IWL_FRAME_LIMIT, 0); } -static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans) +static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans, + u32 txq_bm) { - WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, - "%s bad state = %d", __func__, trans->state); + if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) + IWL_ERR(trans, "%s bad state = %d\n", __func__, trans->state); - return trans->ops->wait_tx_queue_empty(trans); + return trans->ops->wait_tx_queue_empty(trans, txq_bm); } static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, @@ -699,18 +803,6 @@ static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, return trans->ops->dbgfs_register(trans, dir); } -#ifdef CONFIG_PM_SLEEP -static inline int iwl_trans_suspend(struct iwl_trans *trans) -{ - return trans->ops->suspend(trans); -} - -static inline int iwl_trans_resume(struct iwl_trans *trans) -{ - return trans->ops->resume(trans); -} -#endif - static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val) { trans->ops->write8(trans, ofs, val); @@ -761,7 +853,7 @@ static inline u32 iwl_trans_read_mem32(struct iwl_trans *trans, u32 addr) } static inline int iwl_trans_write_mem(struct iwl_trans *trans, u32 addr, - void *buf, int dwords) + const void *buf, int dwords) { return trans->ops->write_mem(trans, addr, buf, dwords); } @@ -774,7 +866,8 @@ static inline u32 iwl_trans_write_mem32(struct iwl_trans *trans, u32 addr, static inline void iwl_trans_set_pmi(struct iwl_trans *trans, bool state) { - trans->ops->set_pmi(trans, state); + if (trans->ops->set_pmi) + trans->ops->set_pmi(trans, state); } static inline void @@ -794,6 +887,16 @@ iwl_trans_release_nic_access(struct iwl_trans *trans, unsigned long *flags) __release(nic_access); } +static inline void iwl_trans_fw_error(struct iwl_trans *trans) +{ + if (WARN_ON_ONCE(!trans->op_mode)) + return; + + /* prevent double restarts due to the same erroneous FW */ + if (!test_and_set_bit(STATUS_FW_ERROR, &trans->status)) + iwl_op_mode_nic_error(trans->op_mode); +} + /***************************************************** * driver (transport) register/unregister functions ******************************************************/ diff --git a/drivers/net/wireless/iwlwifi/mvm/Makefile b/drivers/net/wireless/iwlwifi/mvm/Makefile index 2acc44b4098..c30d7f64ec1 100644 --- a/drivers/net/wireless/iwlwifi/mvm/Makefile +++ b/drivers/net/wireless/iwlwifi/mvm/Makefile @@ -1,10 +1,11 @@ obj-$(CONFIG_IWLMVM) += iwlmvm.o iwlmvm-y += fw.o mac80211.o nvm.o ops.o phy-ctxt.o mac-ctxt.o -iwlmvm-y += utils.o rx.o tx.o binding.o quota.o sta.o +iwlmvm-y += utils.o rx.o tx.o binding.o quota.o sta.o sf.o iwlmvm-y += scan.o time-event.o rs.o -iwlmvm-y += power.o bt-coex.o -iwlmvm-y += led.o -iwlmvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o +iwlmvm-y += power.o coex.o +iwlmvm-y += tt.o offloading.o +iwlmvm-$(CONFIG_IWLWIFI_DEBUGFS) += debugfs.o debugfs-vif.o +iwlmvm-$(CONFIG_IWLWIFI_LEDS) += led.o iwlmvm-$(CONFIG_PM_SLEEP) += d3.o ccflags-y += -D__CHECK_ENDIAN__ -I$(src)/../ diff --git a/drivers/net/wireless/iwlwifi/mvm/binding.c b/drivers/net/wireless/iwlwifi/mvm/binding.c index 93fd1457954..a1376539d2d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/binding.c +++ b/drivers/net/wireless/iwlwifi/mvm/binding.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -183,15 +183,29 @@ int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif) if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) return -EINVAL; + /* + * Update SF - Disable if needed. if this fails, SF might still be on + * while many macs are bound, which is forbidden - so fail the binding. + */ + if (iwl_mvm_sf_update(mvm, vif, false)) + return -EINVAL; + return iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, true); } int iwl_mvm_binding_remove_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + int ret; if (WARN_ON_ONCE(!mvmvif->phy_ctxt)) return -EINVAL; - return iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, false); + ret = iwl_mvm_binding_update(mvm, vif, mvmvif->phy_ctxt, false); + + if (!ret) + if (iwl_mvm_sf_update(mvm, vif, true)) + IWL_ERR(mvm, "Failed to update SF state\n"); + + return ret; } diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c deleted file mode 100644 index 810bfa5f6de..00000000000 --- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c +++ /dev/null @@ -1,589 +0,0 @@ -/****************************************************************************** - * - * This file is provided under a dual BSD/GPLv2 license. When using or - * redistributing this file, you may do so under either license. - * - * GPL LICENSE SUMMARY - * - * Copyright(c) 2013 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of version 2 of the GNU General Public License as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, - * USA - * - * The full GNU General Public License is included in this distribution - * in the file called COPYING. - * - * Contact Information: - * Intel Linux Wireless <ilw@linux.intel.com> - * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 - * - * BSD LICENSE - * - * Copyright(c) 2013 Intel Corporation. All rights reserved. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * * Neither the name Intel Corporation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - *****************************************************************************/ - -#include <net/mac80211.h> - -#include "fw-api-bt-coex.h" -#include "iwl-modparams.h" -#include "mvm.h" -#include "iwl-debug.h" - -#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ - [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ - ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) - -static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, - BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, - BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, - BT_COEX_PRIO_TBL_PRIO_LOW, 0), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, - BT_COEX_PRIO_TBL_PRIO_LOW, 1), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, - BT_COEX_PRIO_TBL_PRIO_HIGH, 0), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, - BT_COEX_PRIO_TBL_PRIO_HIGH, 1), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, - BT_COEX_PRIO_TBL_DISABLED, 0), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, - BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, - BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), - EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, - BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), - 0, 0, 0, 0, 0, 0, -}; - -#undef EVENT_PRIO_ANT - -/* BT Antenna Coupling Threshold (dB) */ -#define IWL_BT_ANTENNA_COUPLING_THRESHOLD (35) -#define IWL_BT_LOAD_FORCE_SISO_THRESHOLD (3) - -#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) -#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) -#define BT_REDUCED_TX_POWER_BIT BIT(7) - -static inline bool is_loose_coex(void) -{ - return iwlwifi_mod_params.ant_coupling > - IWL_BT_ANTENNA_COUPLING_THRESHOLD; -} - -int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) -{ - return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC, - sizeof(struct iwl_bt_coex_prio_tbl_cmd), - &iwl_bt_prio_tbl); -} - -static int iwl_send_bt_env(struct iwl_mvm *mvm, u8 action, u8 type) -{ - struct iwl_bt_coex_prot_env_cmd env_cmd; - int ret; - - env_cmd.action = action; - env_cmd.type = type; - ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PROT_ENV, CMD_SYNC, - sizeof(env_cmd), &env_cmd); - if (ret) - IWL_ERR(mvm, "failed to send BT env command\n"); - return ret; -} - -enum iwl_bt_kill_msk { - BT_KILL_MSK_DEFAULT, - BT_KILL_MSK_SCO_HID_A2DP, - BT_KILL_MSK_REDUCED_TXPOW, - BT_KILL_MSK_MAX, -}; - -static const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { - [BT_KILL_MSK_DEFAULT] = 0xffff0000, - [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, - [BT_KILL_MSK_REDUCED_TXPOW] = 0, -}; - -static const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { - [BT_KILL_MSK_DEFAULT] = 0xffff0000, - [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, - [BT_KILL_MSK_REDUCED_TXPOW] = 0, -}; - -#define IWL_BT_DEFAULT_BOOST (0xf0f0f0f0) - -/* Tight Coex */ -static const __le32 iwl_tight_lookup[BT_COEX_LUT_SIZE] = { - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaeaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xcc00ff28), - cpu_to_le32(0x0000aaaa), - cpu_to_le32(0xcc00aaaa), - cpu_to_le32(0x0000aaaa), - cpu_to_le32(0xc0004000), - cpu_to_le32(0x00000000), - cpu_to_le32(0xf0005000), - cpu_to_le32(0xf0005000), -}; - -/* Loose Coex */ -static const __le32 iwl_loose_lookup[BT_COEX_LUT_SIZE] = { - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaeaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xcc00ff28), - cpu_to_le32(0x0000aaaa), - cpu_to_le32(0xcc00aaaa), - cpu_to_le32(0x0000aaaa), - cpu_to_le32(0x00000000), - cpu_to_le32(0x00000000), - cpu_to_le32(0xf0005000), - cpu_to_le32(0xf0005000), -}; - -/* Full concurrency */ -static const __le32 iwl_concurrent_lookup[BT_COEX_LUT_SIZE] = { - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0xaaaaaaaa), - cpu_to_le32(0x00000000), - cpu_to_le32(0x00000000), - cpu_to_le32(0x00000000), - cpu_to_le32(0x00000000), -}; - -int iwl_send_bt_init_conf(struct iwl_mvm *mvm) -{ - struct iwl_bt_coex_cmd cmd = { - .max_kill = 5, - .bt3_time_t7_value = 1, - .bt3_prio_sample_time = 2, - .bt3_timer_t2_value = 0xc, - }; - int ret; - - cmd.flags = iwlwifi_mod_params.bt_coex_active ? - BT_COEX_NW : BT_COEX_DISABLE; - cmd.flags |= BT_CH_PRIMARY_EN | BT_SYNC_2_BT_DISABLE; - - cmd.valid_bit_msk = cpu_to_le16(BT_VALID_ENABLE | - BT_VALID_BT_PRIO_BOOST | - BT_VALID_MAX_KILL | - BT_VALID_3W_TMRS | - BT_VALID_KILL_ACK | - BT_VALID_KILL_CTS | - BT_VALID_REDUCED_TX_POWER | - BT_VALID_LUT); - - if (is_loose_coex()) - memcpy(&cmd.decision_lut, iwl_loose_lookup, - sizeof(iwl_tight_lookup)); - else - memcpy(&cmd.decision_lut, iwl_tight_lookup, - sizeof(iwl_tight_lookup)); - - cmd.bt_prio_boost = cpu_to_le32(IWL_BT_DEFAULT_BOOST); - cmd.kill_ack_msk = - cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); - cmd.kill_cts_msk = - cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); - - memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); - - /* go to CALIB state in internal BT-Coex state machine */ - ret = iwl_send_bt_env(mvm, BT_COEX_ENV_OPEN, - BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); - if (ret) - return ret; - - ret = iwl_send_bt_env(mvm, BT_COEX_ENV_CLOSE, - BT_COEX_PRIO_TBL_EVT_INIT_CALIB2); - if (ret) - return ret; - - return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_SYNC, - sizeof(cmd), &cmd); -} - -static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, - bool reduced_tx_power) -{ - enum iwl_bt_kill_msk bt_kill_msk; - struct iwl_bt_coex_cmd cmd = {}; - struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; - - lockdep_assert_held(&mvm->mutex); - - if (reduced_tx_power) { - /* Reduced Tx power has precedence on the type of the profile */ - bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; - } else { - /* Low latency BT profile is active: give higher prio to BT */ - if (BT_MBOX_MSG(notif, 3, SCO_STATE) || - BT_MBOX_MSG(notif, 3, A2DP_STATE) || - BT_MBOX_MSG(notif, 3, SNIFF_STATE)) - bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; - else - bt_kill_msk = BT_KILL_MSK_DEFAULT; - } - - IWL_DEBUG_COEX(mvm, - "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", - bt_kill_msk, - BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", - BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", - BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); - - /* Don't send HCMD if there is no update */ - if (bt_kill_msk == mvm->bt_kill_msk) - return 0; - - mvm->bt_kill_msk = bt_kill_msk; - cmd.kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); - cmd.kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); - cmd.valid_bit_msk = cpu_to_le16(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS); - - IWL_DEBUG_COEX(mvm, "bt_kill_msk = %d\n", bt_kill_msk); - return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_SYNC, - sizeof(cmd), &cmd); -} - -static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, - bool enable) -{ - struct iwl_bt_coex_cmd cmd = { - .valid_bit_msk = cpu_to_le16(BT_VALID_REDUCED_TX_POWER), - .bt_reduced_tx_power = sta_id, - }; - struct ieee80211_sta *sta; - struct iwl_mvm_sta *mvmsta; - - /* This can happen if the station has been removed right now */ - if (sta_id == IWL_MVM_STATION_COUNT) - return 0; - - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], - lockdep_is_held(&mvm->mutex)); - mvmsta = (void *)sta->drv_priv; - - /* nothing to do */ - if (mvmsta->bt_reduced_txpower == enable) - return 0; - - if (enable) - cmd.bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; - - IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", - enable ? "en" : "dis", sta_id); - - mvmsta->bt_reduced_txpower = enable; - - /* Send ASYNC since this can be sent from an atomic context */ - return iwl_mvm_send_cmd_pdu(mvm, BT_CONFIG, CMD_ASYNC, - sizeof(cmd), &cmd); -} - -struct iwl_bt_iterator_data { - struct iwl_bt_coex_profile_notif *notif; - struct iwl_mvm *mvm; - u32 num_bss_ifaces; - bool reduced_tx_power; -}; - -static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, - struct ieee80211_vif *vif) -{ - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - struct iwl_bt_iterator_data *data = _data; - struct iwl_mvm *mvm = data->mvm; - struct ieee80211_chanctx_conf *chanctx_conf; - enum ieee80211_smps_mode smps_mode; - enum ieee80211_band band; - int ave_rssi; - - if (vif->type != NL80211_IFTYPE_STATION) - return; - - rcu_read_lock(); - chanctx_conf = rcu_dereference(vif->chanctx_conf); - if (chanctx_conf && chanctx_conf->def.chan) - band = chanctx_conf->def.chan->band; - else - band = -1; - rcu_read_unlock(); - - smps_mode = IEEE80211_SMPS_AUTOMATIC; - - if (band != IEEE80211_BAND_2GHZ) { - ieee80211_request_smps(vif, smps_mode); - return; - } - - if (data->notif->bt_status) - smps_mode = IEEE80211_SMPS_DYNAMIC; - - if (data->notif->bt_traffic_load >= IWL_BT_LOAD_FORCE_SISO_THRESHOLD) - smps_mode = IEEE80211_SMPS_STATIC; - - IWL_DEBUG_COEX(data->mvm, - "mac %d: bt_status %d traffic_load %d smps_req %d\n", - mvmvif->id, data->notif->bt_status, - data->notif->bt_traffic_load, smps_mode); - - ieee80211_request_smps(vif, smps_mode); - - /* don't reduce the Tx power if in loose scheme */ - if (is_loose_coex()) - return; - - data->num_bss_ifaces++; - - /* reduced Txpower only if there are open BT connections, so ...*/ - if (!BT_MBOX_MSG(data->notif, 3, OPEN_CON_2)) { - /* ... cancel reduced Tx power ... */ - if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) - IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); - data->reduced_tx_power = false; - - /* ... and there is no need to get reports on RSSI any more. */ - ieee80211_disable_rssi_reports(vif); - return; - } - - ave_rssi = ieee80211_ave_rssi(vif); - - /* if the RSSI isn't valid, fake it is very low */ - if (!ave_rssi) - ave_rssi = -100; - if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { - if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) - IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); - - /* - * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the - * BSS / P2P clients have rssi above threshold. - * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before - * the iteration, if one interface's rssi isn't good enough, - * bt_kill_msk will be set to default values. - */ - } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { - if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) - IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); - - /* - * One interface hasn't rssi above threshold, bt_kill_msk must - * be set to default values. - */ - data->reduced_tx_power = false; - } - - /* Begin to monitor the RSSI: it may influence the reduced Tx power */ - ieee80211_enable_rssi_reports(vif, BT_DISABLE_REDUCED_TXPOWER_THRESHOLD, - BT_ENABLE_REDUCED_TXPOWER_THRESHOLD); -} - -static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) -{ - struct iwl_bt_iterator_data data = { - .mvm = mvm, - .notif = &mvm->last_bt_notif, - .reduced_tx_power = true, - }; - - ieee80211_iterate_active_interfaces_atomic( - mvm->hw, IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_bt_notif_iterator, &data); - - /* - * If there are no BSS / P2P client interfaces, reduced Tx Power is - * irrelevant since it is based on the RSSI coming from the beacon. - * Use BT_KILL_MSK_DEFAULT in that case. - */ - data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; - - if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) - IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); -} - -/* upon association, the fw will send in BT Coex notification */ -int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, - struct iwl_rx_cmd_buffer *rxb, - struct iwl_device_cmd *dev_cmd) -{ - struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; - - - IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); - IWL_DEBUG_COEX(mvm, "\tBT %salive\n", notif->bt_status ? "" : "not "); - IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); - IWL_DEBUG_COEX(mvm, "\tBT traffic load %d\n", notif->bt_traffic_load); - IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", - notif->bt_agg_traffic_load); - IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); - - /* remember this notification for future use: rssi fluctuations */ - memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); - - iwl_mvm_bt_coex_notif_handle(mvm); - - /* - * This is an async handler for a notification, returning anything other - * than 0 doesn't make sense even if HCMD failed. - */ - return 0; -} - -static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, - struct ieee80211_vif *vif) -{ - struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; - struct iwl_bt_iterator_data *data = _data; - struct iwl_mvm *mvm = data->mvm; - - struct ieee80211_sta *sta; - struct iwl_mvm_sta *mvmsta; - - if (vif->type != NL80211_IFTYPE_STATION || - mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) - return; - - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], - lockdep_is_held(&mvm->mutex)); - mvmsta = (void *)sta->drv_priv; - - /* - * This interface doesn't support reduced Tx power (because of low - * RSSI probably), then set bt_kill_msk to default values. - */ - if (!mvmsta->bt_reduced_txpower) - data->reduced_tx_power = false; - /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ -} - -void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - enum ieee80211_rssi_event rssi_event) -{ - struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; - struct iwl_bt_iterator_data data = { - .mvm = mvm, - .reduced_tx_power = true, - }; - int ret; - - mutex_lock(&mvm->mutex); - - /* Rssi update while not associated ?! */ - if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) - goto out_unlock; - - /* No open connection - reports should be disabled */ - if (!BT_MBOX_MSG(&mvm->last_bt_notif, 3, OPEN_CON_2)) - goto out_unlock; - - IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, - rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); - - /* - * Check if rssi is good enough for reduced Tx power, but not in loose - * scheme. - */ - if (rssi_event == RSSI_EVENT_LOW || is_loose_coex()) - ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, - false); - else - ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); - - if (ret) - IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); - - ieee80211_iterate_active_interfaces_atomic( - mvm->hw, IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_bt_rssi_iterator, &data); - - /* - * If there are no BSS / P2P client interfaces, reduced Tx Power is - * irrelevant since it is based on the RSSI coming from the beacon. - * Use BT_KILL_MSK_DEFAULT in that case. - */ - data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; - - if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) - IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); - - out_unlock: - mutex_unlock(&mvm->mutex); -} - -void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif) -{ - struct ieee80211_chanctx_conf *chanctx_conf; - enum ieee80211_band band; - - rcu_read_lock(); - chanctx_conf = rcu_dereference(vif->chanctx_conf); - if (chanctx_conf && chanctx_conf->def.chan) - band = chanctx_conf->def.chan->band; - else - band = -1; - rcu_read_unlock(); - - /* if we are in 2GHz we will get a notification from the fw */ - if (band == IEEE80211_BAND_2GHZ) - return; - - /* else, we can remove all the constraints */ - memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); - - iwl_mvm_bt_coex_notif_handle(mvm); -} diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c new file mode 100644 index 00000000000..c8c3b38228f --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/coex.c @@ -0,0 +1,1322 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +#include <linux/ieee80211.h> +#include <linux/etherdevice.h> +#include <net/mac80211.h> + +#include "fw-api-coex.h" +#include "iwl-modparams.h" +#include "mvm.h" +#include "iwl-debug.h" + +#define EVENT_PRIO_ANT(_evt, _prio, _shrd_ant) \ + [(_evt)] = (((_prio) << BT_COEX_PRIO_TBL_PRIO_POS) | \ + ((_shrd_ant) << BT_COEX_PRIO_TBL_SHRD_ANT_POS)) + +static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = { + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB1, + BT_COEX_PRIO_TBL_PRIO_BYPASS, 0), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_INIT_CALIB2, + BT_COEX_PRIO_TBL_PRIO_BYPASS, 1), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1, + BT_COEX_PRIO_TBL_PRIO_LOW, 0), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2, + BT_COEX_PRIO_TBL_PRIO_LOW, 1), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1, + BT_COEX_PRIO_TBL_PRIO_HIGH, 0), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2, + BT_COEX_PRIO_TBL_PRIO_HIGH, 1), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_DTIM, + BT_COEX_PRIO_TBL_DISABLED, 0), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN52, + BT_COEX_PRIO_TBL_PRIO_COEX_OFF, 0), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_SCAN24, + BT_COEX_PRIO_TBL_PRIO_COEX_ON, 0), + EVENT_PRIO_ANT(BT_COEX_PRIO_TBL_EVT_IDLE, + BT_COEX_PRIO_TBL_PRIO_COEX_IDLE, 0), + 0, 0, 0, 0, 0, 0, +}; + +#undef EVENT_PRIO_ANT + +#define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD (-62) +#define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD (-65) +#define BT_ANTENNA_COUPLING_THRESHOLD (30) + +static int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm) +{ + return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, 0, + sizeof(struct iwl_bt_coex_prio_tbl_cmd), + &iwl_bt_prio_tbl); +} + +const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = { + [BT_KILL_MSK_DEFAULT] = 0xffff0000, + [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, + [BT_KILL_MSK_REDUCED_TXPOW] = 0, +}; + +const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = { + [BT_KILL_MSK_DEFAULT] = 0xffff0000, + [BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff, + [BT_KILL_MSK_REDUCED_TXPOW] = 0, +}; + +static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = { + cpu_to_le32(0xf0f0f0f0), /* 50% */ + cpu_to_le32(0xc0c0c0c0), /* 25% */ + cpu_to_le32(0xfcfcfcfc), /* 75% */ + cpu_to_le32(0xfefefefe), /* 87.5% */ +}; + +static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { + { + cpu_to_le32(0x40000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x44000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x40000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x44000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + }, + { + cpu_to_le32(0x40000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x44000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x40000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x44000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + }, + { + cpu_to_le32(0x40000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x44000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x40000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0x44000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + }, +}; + +static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = { + { + /* Tight */ + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xaeaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xcc00ff28), + cpu_to_le32(0x0000aaaa), + cpu_to_le32(0xcc00aaaa), + cpu_to_le32(0x0000aaaa), + cpu_to_le32(0xc0004000), + cpu_to_le32(0x00004000), + cpu_to_le32(0xf0005000), + cpu_to_le32(0xf0005000), + }, + { + /* Loose */ + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xcc00ff28), + cpu_to_le32(0x0000aaaa), + cpu_to_le32(0xcc00aaaa), + cpu_to_le32(0x0000aaaa), + cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), + cpu_to_le32(0xf0005000), + cpu_to_le32(0xf0005000), + }, + { + /* Tx Tx disabled */ + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xeeaaaaaa), + cpu_to_le32(0xaaaaaaaa), + cpu_to_le32(0xcc00ff28), + cpu_to_le32(0x0000aaaa), + cpu_to_le32(0xcc00aaaa), + cpu_to_le32(0x0000aaaa), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xc0004000), + cpu_to_le32(0xf0005000), + cpu_to_le32(0xf0005000), + }, +}; + +/* 20MHz / 40MHz below / 40Mhz above*/ +static const __le64 iwl_ci_mask[][3] = { + /* dummy entry for channel 0 */ + {cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)}, + { + cpu_to_le64(0x0000001FFFULL), + cpu_to_le64(0x0ULL), + cpu_to_le64(0x00007FFFFFULL), + }, + { + cpu_to_le64(0x000000FFFFULL), + cpu_to_le64(0x0ULL), + cpu_to_le64(0x0003FFFFFFULL), + }, + { + cpu_to_le64(0x000003FFFCULL), + cpu_to_le64(0x0ULL), + cpu_to_le64(0x000FFFFFFCULL), + }, + { + cpu_to_le64(0x00001FFFE0ULL), + cpu_to_le64(0x0ULL), + cpu_to_le64(0x007FFFFFE0ULL), + }, + { + cpu_to_le64(0x00007FFF80ULL), + cpu_to_le64(0x00007FFFFFULL), + cpu_to_le64(0x01FFFFFF80ULL), + }, + { + cpu_to_le64(0x0003FFFC00ULL), + cpu_to_le64(0x0003FFFFFFULL), + cpu_to_le64(0x0FFFFFFC00ULL), + }, + { + cpu_to_le64(0x000FFFF000ULL), + cpu_to_le64(0x000FFFFFFCULL), + cpu_to_le64(0x3FFFFFF000ULL), + }, + { + cpu_to_le64(0x007FFF8000ULL), + cpu_to_le64(0x007FFFFFE0ULL), + cpu_to_le64(0xFFFFFF8000ULL), + }, + { + cpu_to_le64(0x01FFFE0000ULL), + cpu_to_le64(0x01FFFFFF80ULL), + cpu_to_le64(0xFFFFFE0000ULL), + }, + { + cpu_to_le64(0x0FFFF00000ULL), + cpu_to_le64(0x0FFFFFFC00ULL), + cpu_to_le64(0x0ULL), + }, + { + cpu_to_le64(0x3FFFC00000ULL), + cpu_to_le64(0x3FFFFFF000ULL), + cpu_to_le64(0x0) + }, + { + cpu_to_le64(0xFFFE000000ULL), + cpu_to_le64(0xFFFFFF8000ULL), + cpu_to_le64(0x0) + }, + { + cpu_to_le64(0xFFF8000000ULL), + cpu_to_le64(0xFFFFFE0000ULL), + cpu_to_le64(0x0) + }, + { + cpu_to_le64(0xFFC0000000ULL), + cpu_to_le64(0x0ULL), + cpu_to_le64(0x0ULL) + }, +}; + +static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = { + cpu_to_le32(0x28412201), + cpu_to_le32(0x11118451), +}; + +struct corunning_block_luts { + u8 range; + __le32 lut20[BT_COEX_CORUN_LUT_SIZE]; +}; + +/* + * Ranges for the antenna coupling calibration / co-running block LUT: + * LUT0: [ 0, 12[ + * LUT1: [12, 20[ + * LUT2: [20, 21[ + * LUT3: [21, 23[ + * LUT4: [23, 27[ + * LUT5: [27, 30[ + * LUT6: [30, 32[ + * LUT7: [32, 33[ + * LUT8: [33, - [ + */ +static const struct corunning_block_luts antenna_coupling_ranges[] = { + { + .range = 0, + .lut20 = { + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 12, + .lut20 = { + cpu_to_le32(0x00000001), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 20, + .lut20 = { + cpu_to_le32(0x00000002), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 21, + .lut20 = { + cpu_to_le32(0x00000003), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 23, + .lut20 = { + cpu_to_le32(0x00000004), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 27, + .lut20 = { + cpu_to_le32(0x00000005), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 30, + .lut20 = { + cpu_to_le32(0x00000006), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 32, + .lut20 = { + cpu_to_le32(0x00000007), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, + { + .range = 33, + .lut20 = { + cpu_to_le32(0x00000008), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + cpu_to_le32(0x00000000), cpu_to_le32(0x00000000), + }, + }, +}; + +static enum iwl_bt_coex_lut_type +iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif) +{ + struct ieee80211_chanctx_conf *chanctx_conf; + enum iwl_bt_coex_lut_type ret; + u16 phy_ctx_id; + + /* + * Checking that we hold mvm->mutex is a good idea, but the rate + * control can't acquire the mutex since it runs in Tx path. + * So this is racy in that case, but in the worst case, the AMPDU + * size limit will be wrong for a short time which is not a big + * issue. + */ + + rcu_read_lock(); + + chanctx_conf = rcu_dereference(vif->chanctx_conf); + + if (!chanctx_conf || + chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { + rcu_read_unlock(); + return BT_COEX_LOOSE_LUT; + } + + ret = BT_COEX_TX_DIS_LUT; + + if (mvm->cfg->bt_shared_single_ant) { + rcu_read_unlock(); + return ret; + } + + phy_ctx_id = *((u16 *)chanctx_conf->drv_priv); + + if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id) + ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut); + else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id) + ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut); + /* else - default = TX TX disallowed */ + + rcu_read_unlock(); + + return ret; +} + +int iwl_send_bt_init_conf(struct iwl_mvm *mvm) +{ + struct iwl_bt_coex_cmd *bt_cmd; + struct iwl_host_cmd cmd = { + .id = BT_CONFIG, + .len = { sizeof(*bt_cmd), }, + .dataflags = { IWL_HCMD_DFL_NOCOPY, }, + }; + int ret; + u32 flags; + + ret = iwl_send_bt_prio_tbl(mvm); + if (ret) + return ret; + + bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); + if (!bt_cmd) + return -ENOMEM; + cmd.data[0] = bt_cmd; + + bt_cmd->max_kill = 5; + bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD; + bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling; + bt_cmd->bt4_tx_tx_delta_freq_thr = 15; + bt_cmd->bt4_tx_rx_max_freq0 = 15; + bt_cmd->override_primary_lut = BT_COEX_INVALID_LUT; + bt_cmd->override_secondary_lut = BT_COEX_INVALID_LUT; + + flags = iwlwifi_mod_params.bt_coex_active ? + BT_COEX_NW : BT_COEX_DISABLE; + bt_cmd->flags = cpu_to_le32(flags); + + bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE | + BT_VALID_BT_PRIO_BOOST | + BT_VALID_MAX_KILL | + BT_VALID_3W_TMRS | + BT_VALID_KILL_ACK | + BT_VALID_KILL_CTS | + BT_VALID_REDUCED_TX_POWER | + BT_VALID_LUT | + BT_VALID_WIFI_RX_SW_PRIO_BOOST | + BT_VALID_WIFI_TX_SW_PRIO_BOOST | + BT_VALID_ANT_ISOLATION | + BT_VALID_ANT_ISOLATION_THRS | + BT_VALID_TXTX_DELTA_FREQ_THRS | + BT_VALID_TXRX_MAX_FREQ_0 | + BT_VALID_SYNC_TO_SCO); + + if (IWL_MVM_BT_COEX_SYNC2SCO) + bt_cmd->flags |= cpu_to_le32(BT_COEX_SYNC2SCO); + + if (IWL_MVM_BT_COEX_CORUNNING) { + bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_CORUN_LUT_20 | + BT_VALID_CORUN_LUT_40); + bt_cmd->flags |= cpu_to_le32(BT_COEX_CORUNNING); + } + + if (IWL_MVM_BT_COEX_MPLUT) { + bt_cmd->flags |= cpu_to_le32(BT_COEX_MPLUT); + bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_MULTI_PRIO_LUT); + } + + if (mvm->cfg->bt_shared_single_ant) + memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant, + sizeof(iwl_single_shared_ant)); + else + memcpy(&bt_cmd->decision_lut, iwl_combined_lookup, + sizeof(iwl_combined_lookup)); + + /* Take first Co-running block LUT to get started */ + memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[0].lut20, + sizeof(bt_cmd->bt4_corun_lut20)); + memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[0].lut20, + sizeof(bt_cmd->bt4_corun_lut40)); + + memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost, + sizeof(iwl_bt_prio_boost)); + memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut, + sizeof(iwl_bt_mprio_lut)); + bt_cmd->kill_ack_msk = + cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]); + bt_cmd->kill_cts_msk = + cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]); + + memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif)); + memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd)); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + + kfree(bt_cmd); + return ret; +} + +static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm, + bool reduced_tx_power) +{ + enum iwl_bt_kill_msk bt_kill_msk; + struct iwl_bt_coex_cmd *bt_cmd; + struct iwl_bt_coex_profile_notif *notif = &mvm->last_bt_notif; + struct iwl_host_cmd cmd = { + .id = BT_CONFIG, + .data[0] = &bt_cmd, + .len = { sizeof(*bt_cmd), }, + .dataflags = { IWL_HCMD_DFL_NOCOPY, }, + }; + int ret = 0; + + lockdep_assert_held(&mvm->mutex); + + if (reduced_tx_power) { + /* Reduced Tx power has precedence on the type of the profile */ + bt_kill_msk = BT_KILL_MSK_REDUCED_TXPOW; + } else { + /* Low latency BT profile is active: give higher prio to BT */ + if (BT_MBOX_MSG(notif, 3, SCO_STATE) || + BT_MBOX_MSG(notif, 3, A2DP_STATE) || + BT_MBOX_MSG(notif, 3, SNIFF_STATE)) + bt_kill_msk = BT_KILL_MSK_SCO_HID_A2DP; + else + bt_kill_msk = BT_KILL_MSK_DEFAULT; + } + + IWL_DEBUG_COEX(mvm, + "Update kill_msk: %d - SCO %sactive A2DP %sactive SNIFF %sactive\n", + bt_kill_msk, + BT_MBOX_MSG(notif, 3, SCO_STATE) ? "" : "in", + BT_MBOX_MSG(notif, 3, A2DP_STATE) ? "" : "in", + BT_MBOX_MSG(notif, 3, SNIFF_STATE) ? "" : "in"); + + /* Don't send HCMD if there is no update */ + if (bt_kill_msk == mvm->bt_kill_msk) + return 0; + + mvm->bt_kill_msk = bt_kill_msk; + + bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); + if (!bt_cmd) + return -ENOMEM; + cmd.data[0] = bt_cmd; + bt_cmd->flags = cpu_to_le32(BT_COEX_NW); + + bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]); + bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]); + bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | + BT_VALID_KILL_ACK | + BT_VALID_KILL_CTS); + + IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n", + iwl_bt_ack_kill_msk[bt_kill_msk], + iwl_bt_cts_kill_msk[bt_kill_msk]); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + + kfree(bt_cmd); + return ret; +} + +static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id, + bool enable) +{ + struct iwl_bt_coex_cmd *bt_cmd; + /* Send ASYNC since this can be sent from an atomic context */ + struct iwl_host_cmd cmd = { + .id = BT_CONFIG, + .len = { sizeof(*bt_cmd), }, + .dataflags = { IWL_HCMD_DFL_NOCOPY, }, + .flags = CMD_ASYNC, + }; + struct iwl_mvm_sta *mvmsta; + int ret; + + mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); + if (!mvmsta) + return 0; + + /* nothing to do */ + if (mvmsta->bt_reduced_txpower == enable) + return 0; + + bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_ATOMIC); + if (!bt_cmd) + return -ENOMEM; + cmd.data[0] = bt_cmd; + bt_cmd->flags = cpu_to_le32(BT_COEX_NW); + + bt_cmd->valid_bit_msk = + cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER); + bt_cmd->bt_reduced_tx_power = sta_id; + + if (enable) + bt_cmd->bt_reduced_tx_power |= BT_REDUCED_TX_POWER_BIT; + + IWL_DEBUG_COEX(mvm, "%sable reduced Tx Power for sta %d\n", + enable ? "en" : "dis", sta_id); + + mvmsta->bt_reduced_txpower = enable; + + ret = iwl_mvm_send_cmd(mvm, &cmd); + + kfree(bt_cmd); + return ret; +} + +struct iwl_bt_iterator_data { + struct iwl_bt_coex_profile_notif *notif; + struct iwl_mvm *mvm; + u32 num_bss_ifaces; + bool reduced_tx_power; + struct ieee80211_chanctx_conf *primary; + struct ieee80211_chanctx_conf *secondary; + bool primary_ll; +}; + +static inline +void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool enable, int rssi) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + mvmvif->bf_data.last_bt_coex_event = rssi; + mvmvif->bf_data.bt_coex_max_thold = + enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0; + mvmvif->bf_data.bt_coex_min_thold = + enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0; +} + +/* must be called under rcu_read_lock */ +static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_bt_iterator_data *data = _data; + struct iwl_mvm *mvm = data->mvm; + struct ieee80211_chanctx_conf *chanctx_conf; + enum ieee80211_smps_mode smps_mode; + u32 bt_activity_grading; + int ave_rssi; + + lockdep_assert_held(&mvm->mutex); + + switch (vif->type) { + case NL80211_IFTYPE_STATION: + /* Count BSSes vifs */ + data->num_bss_ifaces++; + /* default smps_mode for BSS / P2P client is AUTOMATIC */ + smps_mode = IEEE80211_SMPS_AUTOMATIC; + break; + case NL80211_IFTYPE_AP: + /* default smps_mode for AP / GO is OFF */ + smps_mode = IEEE80211_SMPS_OFF; + if (!mvmvif->ap_ibss_active) { + iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, + smps_mode); + return; + } + + /* the Ack / Cts kill mask must be default if AP / GO */ + data->reduced_tx_power = false; + break; + default: + return; + } + + chanctx_conf = rcu_dereference(vif->chanctx_conf); + + /* If channel context is invalid or not on 2.4GHz .. */ + if ((!chanctx_conf || + chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) { + /* ... relax constraints and disable rssi events */ + iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, + smps_mode); + data->reduced_tx_power = false; + if (vif->type == NL80211_IFTYPE_STATION) { + iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, + false); + iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); + } + return; + } + + bt_activity_grading = le32_to_cpu(data->notif->bt_activity_grading); + if (bt_activity_grading >= BT_HIGH_TRAFFIC) + smps_mode = IEEE80211_SMPS_STATIC; + else if (bt_activity_grading >= BT_LOW_TRAFFIC) + smps_mode = vif->type == NL80211_IFTYPE_AP ? + IEEE80211_SMPS_OFF : + IEEE80211_SMPS_DYNAMIC; + + /* relax SMPS contraints for next association */ + if (!vif->bss_conf.assoc) + smps_mode = IEEE80211_SMPS_AUTOMATIC; + + IWL_DEBUG_COEX(data->mvm, + "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n", + mvmvif->id, data->notif->bt_status, bt_activity_grading, + smps_mode); + + iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode); + + /* low latency is always primary */ + if (iwl_mvm_vif_low_latency(mvmvif)) { + data->primary_ll = true; + + data->secondary = data->primary; + data->primary = chanctx_conf; + } + + if (vif->type == NL80211_IFTYPE_AP) { + if (!mvmvif->ap_ibss_active) + return; + + if (chanctx_conf == data->primary) + return; + + if (!data->primary_ll) { + /* + * downgrade the current primary no matter what its + * type is. + */ + data->secondary = data->primary; + data->primary = chanctx_conf; + } else { + /* there is low latency vif - we will be secondary */ + data->secondary = chanctx_conf; + } + return; + } + + /* + * STA / P2P Client, try to be primary if first vif. If we are in low + * latency mode, we are already in primary and just don't do much + */ + if (!data->primary || data->primary == chanctx_conf) + data->primary = chanctx_conf; + else if (!data->secondary) + /* if secondary is not NULL, it might be a GO */ + data->secondary = chanctx_conf; + + /* + * don't reduce the Tx power if one of these is true: + * we are in LOOSE + * single share antenna product + * BT is active + * we are associated + */ + if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT || + mvm->cfg->bt_shared_single_ant || !vif->bss_conf.assoc || + !data->notif->bt_status) { + data->reduced_tx_power = false; + iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false); + iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0); + return; + } + + /* try to get the avg rssi from fw */ + ave_rssi = mvmvif->bf_data.ave_beacon_signal; + + /* if the RSSI isn't valid, fake it is very low */ + if (!ave_rssi) + ave_rssi = -100; + if (ave_rssi > BT_ENABLE_REDUCED_TXPOWER_THRESHOLD) { + if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true)) + IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); + + /* + * bt_kill_msk can be BT_KILL_MSK_REDUCED_TXPOW only if all the + * BSS / P2P clients have rssi above threshold. + * We set the bt_kill_msk to BT_KILL_MSK_REDUCED_TXPOW before + * the iteration, if one interface's rssi isn't good enough, + * bt_kill_msk will be set to default values. + */ + } else if (ave_rssi < BT_DISABLE_REDUCED_TXPOWER_THRESHOLD) { + if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false)) + IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n"); + + /* + * One interface hasn't rssi above threshold, bt_kill_msk must + * be set to default values. + */ + data->reduced_tx_power = false; + } + + /* Begin to monitor the RSSI: it may influence the reduced Tx power */ + iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi); +} + +static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm) +{ + struct iwl_bt_iterator_data data = { + .mvm = mvm, + .notif = &mvm->last_bt_notif, + .reduced_tx_power = true, + }; + struct iwl_bt_coex_ci_cmd cmd = {}; + u8 ci_bw_idx; + + rcu_read_lock(); + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_bt_notif_iterator, &data); + + if (data.primary) { + struct ieee80211_chanctx_conf *chan = data.primary; + if (WARN_ON(!chan->def.chan)) { + rcu_read_unlock(); + return; + } + + if (chan->def.width < NL80211_CHAN_WIDTH_40) { + ci_bw_idx = 0; + cmd.co_run_bw_primary = 0; + } else { + cmd.co_run_bw_primary = 1; + if (chan->def.center_freq1 > + chan->def.chan->center_freq) + ci_bw_idx = 2; + else + ci_bw_idx = 1; + } + + cmd.bt_primary_ci = + iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; + cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv); + } + + if (data.secondary) { + struct ieee80211_chanctx_conf *chan = data.secondary; + if (WARN_ON(!data.secondary->def.chan)) { + rcu_read_unlock(); + return; + } + + if (chan->def.width < NL80211_CHAN_WIDTH_40) { + ci_bw_idx = 0; + cmd.co_run_bw_secondary = 0; + } else { + cmd.co_run_bw_secondary = 1; + if (chan->def.center_freq1 > + chan->def.chan->center_freq) + ci_bw_idx = 2; + else + ci_bw_idx = 1; + } + + cmd.bt_secondary_ci = + iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx]; + cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv); + } + + rcu_read_unlock(); + + /* Don't spam the fw with the same command over and over */ + if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) { + if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, 0, + sizeof(cmd), &cmd)) + IWL_ERR(mvm, "Failed to send BT_CI cmd\n"); + memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd)); + } + + /* + * If there are no BSS / P2P client interfaces, reduced Tx Power is + * irrelevant since it is based on the RSSI coming from the beacon. + * Use BT_KILL_MSK_DEFAULT in that case. + */ + data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; + + if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) + IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); +} + +int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *dev_cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_bt_coex_profile_notif *notif = (void *)pkt->data; + + + IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n"); + IWL_DEBUG_COEX(mvm, "\tBT status: %s\n", + notif->bt_status ? "ON" : "OFF"); + IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn); + IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance); + IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n", + le32_to_cpu(notif->primary_ch_lut)); + IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n", + le32_to_cpu(notif->secondary_ch_lut)); + IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n", + le32_to_cpu(notif->bt_activity_grading)); + IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n", + notif->bt_agg_traffic_load); + + /* remember this notification for future use: rssi fluctuations */ + memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif)); + + iwl_mvm_bt_coex_notif_handle(mvm); + + /* + * This is an async handler for a notification, returning anything other + * than 0 doesn't make sense even if HCMD failed. + */ + return 0; +} + +static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; + struct iwl_bt_iterator_data *data = _data; + struct iwl_mvm *mvm = data->mvm; + + struct ieee80211_sta *sta; + struct iwl_mvm_sta *mvmsta; + + struct ieee80211_chanctx_conf *chanctx_conf; + + rcu_read_lock(); + chanctx_conf = rcu_dereference(vif->chanctx_conf); + /* If channel context is invalid or not on 2.4GHz - don't count it */ + if (!chanctx_conf || + chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) { + rcu_read_unlock(); + return; + } + rcu_read_unlock(); + + if (vif->type != NL80211_IFTYPE_STATION || + mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) + return; + + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], + lockdep_is_held(&mvm->mutex)); + + /* This can happen if the station has been removed right now */ + if (IS_ERR_OR_NULL(sta)) + return; + + mvmsta = iwl_mvm_sta_from_mac80211(sta); + + data->num_bss_ifaces++; + + /* + * This interface doesn't support reduced Tx power (because of low + * RSSI probably), then set bt_kill_msk to default values. + */ + if (!mvmsta->bt_reduced_txpower) + data->reduced_tx_power = false; + /* else - possibly leave it to BT_KILL_MSK_REDUCED_TXPOW */ +} + +void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + enum ieee80211_rssi_event rssi_event) +{ + struct iwl_mvm_vif *mvmvif = (void *)vif->drv_priv; + struct iwl_bt_iterator_data data = { + .mvm = mvm, + .reduced_tx_power = true, + }; + int ret; + + lockdep_assert_held(&mvm->mutex); + + /* + * Rssi update while not associated - can happen since the statistics + * are handled asynchronously + */ + if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) + return; + + /* No BT - reports should be disabled */ + if (!mvm->last_bt_notif.bt_status) + return; + + IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid, + rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW"); + + /* + * Check if rssi is good enough for reduced Tx power, but not in loose + * scheme. + */ + if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant || + iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT) + ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, + false); + else + ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, true); + + if (ret) + IWL_ERR(mvm, "couldn't send BT_CONFIG HCMD upon RSSI event\n"); + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_bt_rssi_iterator, &data); + + /* + * If there are no BSS / P2P client interfaces, reduced Tx Power is + * irrelevant since it is based on the RSSI coming from the beacon. + * Use BT_KILL_MSK_DEFAULT in that case. + */ + data.reduced_tx_power = data.reduced_tx_power && data.num_bss_ifaces; + + if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power)) + IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n"); +} + +#define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) +#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT (1200) + +u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, + struct ieee80211_sta *sta) +{ + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + enum iwl_bt_coex_lut_type lut_type; + + if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < + BT_HIGH_TRAFFIC) + return LINK_QUAL_AGG_TIME_LIMIT_DEF; + + lut_type = iwl_get_coex_type(mvm, mvmsta->vif); + + if (lut_type == BT_COEX_LOOSE_LUT) + return LINK_QUAL_AGG_TIME_LIMIT_DEF; + + /* tight coex, high bt traffic, reduce AGG time limit */ + return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT; +} + +bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, + struct ieee80211_sta *sta) +{ + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + + if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) < + BT_HIGH_TRAFFIC) + return true; + + /* + * In Tight, BT can't Rx while we Tx, so use both antennas since BT is + * already killed. + * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we + * Tx. + */ + return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT; +} + +bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, + enum ieee80211_band band) +{ + u32 bt_activity = le32_to_cpu(mvm->last_bt_notif.bt_activity_grading); + + if (band != IEEE80211_BAND_2GHZ) + return false; + + return bt_activity >= BT_LOW_TRAFFIC; +} + +u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, + struct ieee80211_tx_info *info, u8 ac) +{ + __le16 fc = hdr->frame_control; + + if (info->band != IEEE80211_BAND_2GHZ) + return 0; + + if (unlikely(mvm->bt_tx_prio)) + return mvm->bt_tx_prio - 1; + + /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ + if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO || + is_multicast_ether_addr(hdr->addr1) || + ieee80211_is_ctl(fc) || ieee80211_is_mgmt(fc) || + ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)) + return 3; + + switch (ac) { + case IEEE80211_AC_BE: + return 1; + case IEEE80211_AC_VO: + return 3; + case IEEE80211_AC_VI: + return 2; + default: + break; + } + + return 0; +} + +void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm) +{ + iwl_mvm_bt_coex_notif_handle(mvm); +} + +int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *dev_cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + u32 ant_isolation = le32_to_cpup((void *)pkt->data); + u8 __maybe_unused lower_bound, upper_bound; + int ret; + u8 lut; + + struct iwl_bt_coex_cmd *bt_cmd; + struct iwl_host_cmd cmd = { + .id = BT_CONFIG, + .len = { sizeof(*bt_cmd), }, + .dataflags = { IWL_HCMD_DFL_NOCOPY, }, + }; + + if (!IWL_MVM_BT_COEX_CORUNNING) + return 0; + + lockdep_assert_held(&mvm->mutex); + + if (ant_isolation == mvm->last_ant_isol) + return 0; + + for (lut = 0; lut < ARRAY_SIZE(antenna_coupling_ranges) - 1; lut++) + if (ant_isolation < antenna_coupling_ranges[lut + 1].range) + break; + + lower_bound = antenna_coupling_ranges[lut].range; + + if (lut < ARRAY_SIZE(antenna_coupling_ranges) - 1) + upper_bound = antenna_coupling_ranges[lut + 1].range; + else + upper_bound = antenna_coupling_ranges[lut].range; + + IWL_DEBUG_COEX(mvm, "Antenna isolation=%d in range [%d,%d[, lut=%d\n", + ant_isolation, lower_bound, upper_bound, lut); + + mvm->last_ant_isol = ant_isolation; + + if (mvm->last_corun_lut == lut) + return 0; + + mvm->last_corun_lut = lut; + + bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL); + if (!bt_cmd) + return 0; + cmd.data[0] = bt_cmd; + + bt_cmd->flags = cpu_to_le32(BT_COEX_NW); + bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE | + BT_VALID_CORUN_LUT_20 | + BT_VALID_CORUN_LUT_40); + + /* For the moment, use the same LUT for 20GHz and 40GHz */ + memcpy(bt_cmd->bt4_corun_lut20, antenna_coupling_ranges[lut].lut20, + sizeof(bt_cmd->bt4_corun_lut20)); + + memcpy(bt_cmd->bt4_corun_lut40, antenna_coupling_ranges[lut].lut20, + sizeof(bt_cmd->bt4_corun_lut40)); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + + kfree(bt_cmd); + return ret; +} diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h new file mode 100644 index 00000000000..51685693af2 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/constants.h @@ -0,0 +1,86 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#ifndef __MVM_CONSTANTS_H +#define __MVM_CONSTANTS_H + +#define IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT (100 * USEC_PER_MSEC) +#define IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT (100 * USEC_PER_MSEC) +#define IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT (10 * USEC_PER_MSEC) +#define IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT (10 * USEC_PER_MSEC) +#define IWL_MVM_UAPSD_RX_DATA_TIMEOUT (50 * USEC_PER_MSEC) +#define IWL_MVM_UAPSD_TX_DATA_TIMEOUT (50 * USEC_PER_MSEC) +#define IWL_MVM_PS_HEAVY_TX_THLD_PACKETS 20 +#define IWL_MVM_PS_HEAVY_RX_THLD_PACKETS 8 +#define IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS 30 +#define IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS 20 +#define IWL_MVM_PS_HEAVY_TX_THLD_PERCENT 50 +#define IWL_MVM_PS_HEAVY_RX_THLD_PERCENT 50 +#define IWL_MVM_PS_SNOOZE_INTERVAL 25 +#define IWL_MVM_PS_SNOOZE_WINDOW 50 +#define IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW 25 +#define IWL_MVM_LOWLAT_QUOTA_MIN_PERCENT 64 +#define IWL_MVM_BT_COEX_SYNC2SCO 1 +#define IWL_MVM_BT_COEX_CORUNNING 1 +#define IWL_MVM_BT_COEX_MPLUT 1 + +#endif /* __MVM_CONSTANTS_H */ diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c index 16bbdcc8627..645b3cfc29a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/d3.c +++ b/drivers/net/wireless/iwlwifi/mvm/d3.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -63,9 +63,11 @@ #include <linux/etherdevice.h> #include <linux/ip.h> +#include <linux/fs.h> #include <net/cfg80211.h> #include <net/ipv6.h> #include <net/tcp.h> +#include <net/addrconf.h> #include "iwl-modparams.h" #include "fw-api.h" #include "mvm.h" @@ -104,7 +106,7 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, list_for_each_entry(ifa, &idev->addr_list, if_list) { mvmvif->target_ipv6_addrs[idx] = ifa->addr; idx++; - if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS) + if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) break; } read_unlock_bh(&idev->lock); @@ -133,7 +135,7 @@ struct wowlan_key_data { struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; struct iwl_wowlan_tkip_params_cmd *tkip; bool error, use_rsc_tsc, use_tkip; - int gtk_key_idx; + int wep_key_idx; }; static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, @@ -187,12 +189,11 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, wkc.wep_key.key_offset = 0; } else { /* others start at 1 */ - data->gtk_key_idx++; - wkc.wep_key.key_offset = data->gtk_key_idx; + data->wep_key_idx++; + wkc.wep_key.key_offset = data->wep_key_idx; } - ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, CMD_SYNC, - sizeof(wkc), &wkc); + ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc); data->error = ret != 0; mvm->ptk_ivlen = key->iv_len; @@ -315,8 +316,13 @@ static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, mvm->ptk_ivlen = key->iv_len; mvm->ptk_icvlen = key->icv_len; } else { - data->gtk_key_idx++; - key->hw_key_idx = data->gtk_key_idx; + /* + * firmware only supports TSC/RSC for a single key, + * so if there are multiple keep overwriting them + * with new ones -- this relies on mac80211 doing + * list_add_tail(). + */ + key->hw_key_idx = 1; mvm->gtk_ivlen = key->iv_len; mvm->gtk_icvlen = key->icv_len; } @@ -334,7 +340,6 @@ static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, struct iwl_host_cmd cmd = { .id = WOWLAN_PATTERNS, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, - .flags = CMD_SYNC, }; int i, err; @@ -369,41 +374,6 @@ static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, return err; } -static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, - struct ieee80211_vif *vif) -{ - struct iwl_proto_offload_cmd cmd = {}; -#if IS_ENABLED(CONFIG_IPV6) - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - int i; - - if (mvmvif->num_target_ipv6_addrs) { - cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS); - memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN); - } - - BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) != - sizeof(mvmvif->target_ipv6_addrs[i])); - - for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++) - memcpy(cmd.target_ipv6_addr[i], - &mvmvif->target_ipv6_addrs[i], - sizeof(cmd.target_ipv6_addr[i])); -#endif - - if (vif->bss_conf.arp_addr_cnt) { - cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP); - cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0]; - memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN); - } - - if (!cmd.enabled) - return 0; - - return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC, - sizeof(cmd), &cmd); -} - enum iwl_mvm_tcp_packet_type { MVM_TCP_TX_SYN, MVM_TCP_RX_SYNACK, @@ -419,8 +389,7 @@ static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr) return cpu_to_le16(be16_to_cpu((__force __be16)check)); } -static void iwl_mvm_build_tcp_packet(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, +static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif, struct cfg80211_wowlan_tcp *tcp, void *_pkt, u8 *mask, __le16 *pseudo_hdr_csum, @@ -547,7 +516,6 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, .id = REMOTE_WAKE_CONFIG_CMD, .len = { sizeof(*cfg), }, .dataflags = { IWL_HCMD_DFL_NOCOPY, }, - .flags = CMD_SYNC, }; int ret; @@ -566,21 +534,21 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, /* SYN (TX) */ iwl_mvm_build_tcp_packet( - mvm, vif, tcp, cfg->syn_tx.data, NULL, + vif, tcp, cfg->syn_tx.data, NULL, &cfg->syn_tx.info.tcp_pseudo_header_checksum, MVM_TCP_TX_SYN); cfg->syn_tx.info.tcp_payload_length = 0; /* SYN/ACK (RX) */ iwl_mvm_build_tcp_packet( - mvm, vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask, + vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask, &cfg->synack_rx.info.tcp_pseudo_header_checksum, MVM_TCP_RX_SYNACK); cfg->synack_rx.info.tcp_payload_length = 0; /* KEEPALIVE/ACK (TX) */ iwl_mvm_build_tcp_packet( - mvm, vif, tcp, cfg->keepalive_tx.data, NULL, + vif, tcp, cfg->keepalive_tx.data, NULL, &cfg->keepalive_tx.info.tcp_pseudo_header_checksum, MVM_TCP_TX_DATA); cfg->keepalive_tx.info.tcp_payload_length = @@ -604,7 +572,7 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, /* ACK (RX) */ iwl_mvm_build_tcp_packet( - mvm, vif, tcp, cfg->keepalive_ack_rx.data, + vif, tcp, cfg->keepalive_ack_rx.data, cfg->keepalive_ack_rx.rx_mask, &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum, MVM_TCP_RX_ACK); @@ -612,7 +580,7 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, /* WAKEUP (RX) */ iwl_mvm_build_tcp_packet( - mvm, vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask, + vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask, &cfg->wake_rx.info.tcp_pseudo_header_checksum, MVM_TCP_RX_WAKE); cfg->wake_rx.info.tcp_payload_length = @@ -620,7 +588,7 @@ static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, /* FIN */ iwl_mvm_build_tcp_packet( - mvm, vif, tcp, cfg->fin_tx.data, NULL, + vif, tcp, cfg->fin_tx.data, NULL, &cfg->fin_tx.info.tcp_pseudo_header_checksum, MVM_TCP_TX_FIN); cfg->fin_tx.info.tcp_payload_length = 0; @@ -695,10 +663,8 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, if (WARN_ON(!vif->bss_conf.assoc)) return -EINVAL; - /* hack */ - vif->bss_conf.assoc = false; + ret = iwl_mvm_mac_ctxt_add(mvm, vif); - vif->bss_conf.assoc = true; if (ret) return ret; @@ -734,7 +700,7 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return ret; rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); - ret = iwl_mvm_mac_ctxt_changed(mvm, vif); + ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); if (ret) return ret; @@ -742,13 +708,13 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, quota_cmd.quotas[0].id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, mvmvif->phy_ctxt->color)); - quota_cmd.quotas[0].quota = cpu_to_le32(100); - quota_cmd.quotas[0].max_duration = cpu_to_le32(1000); + quota_cmd.quotas[0].quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); + quota_cmd.quotas[0].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); for (i = 1; i < MAX_BINDINGS; i++) quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); - ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC, + ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, sizeof(quota_cmd), "a_cmd); if (ret) IWL_ERR(mvm, "Failed to send quota: %d\n", ret); @@ -756,7 +722,82 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return 0; } -int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) +static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_nonqos_seq_query_cmd query_cmd = { + .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), + .mac_id_n_color = + cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, + mvmvif->color)), + }; + struct iwl_host_cmd cmd = { + .id = NON_QOS_TX_COUNTER_CMD, + .flags = CMD_WANT_SKB, + }; + int err; + u32 size; + + cmd.data[0] = &query_cmd; + cmd.len[0] = sizeof(query_cmd); + + err = iwl_mvm_send_cmd(mvm, &cmd); + if (err) + return err; + + size = iwl_rx_packet_payload_len(cmd.resp_pkt); + if (size < sizeof(__le16)) { + err = -EINVAL; + } else { + err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); + /* firmware returns next, not last-used seqno */ + err = (u16) (err - 0x10); + } + + iwl_free_resp(&cmd); + return err; +} + +void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_nonqos_seq_query_cmd query_cmd = { + .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), + .mac_id_n_color = + cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, + mvmvif->color)), + .value = cpu_to_le16(mvmvif->seqno), + }; + + /* return if called during restart, not resume from D3 */ + if (!mvmvif->seqno_valid) + return; + + mvmvif->seqno_valid = false; + + if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, + sizeof(query_cmd), &query_cmd)) + IWL_ERR(mvm, "failed to set non-QoS seqno\n"); +} + +static int +iwl_mvm_send_wowlan_config_cmd(struct iwl_mvm *mvm, + const struct iwl_wowlan_config_cmd_v3 *cmd) +{ + /* start only with the v2 part of the command */ + u16 cmd_len = sizeof(cmd->common); + + if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_WOWLAN_CONFIG_TID) + cmd_len = sizeof(*cmd); + + return iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, + cmd_len, cmd); +} + +static int __iwl_mvm_suspend(struct ieee80211_hw *hw, + struct cfg80211_wowlan *wowlan, + bool test) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_d3_iter_data suspend_iter_data = { @@ -766,10 +807,10 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) struct iwl_mvm_vif *mvmvif; struct ieee80211_sta *ap_sta; struct iwl_mvm_sta *mvm_ap_sta; - struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; + struct iwl_wowlan_config_cmd_v3 wowlan_config_cmd = {}; struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; - struct iwl_d3_manager_config d3_cfg_cmd = { + struct iwl_d3_manager_config d3_cfg_cmd_data = { /* * Program the minimum sleep time to 10 seconds, as many * platforms have issues processing a wakeup signal while @@ -777,17 +818,28 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) */ .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), }; + struct iwl_host_cmd d3_cfg_cmd = { + .id = D3_CONFIG_CMD, + .flags = CMD_WANT_SKB, + .data[0] = &d3_cfg_cmd_data, + .len[0] = sizeof(d3_cfg_cmd_data), + }; struct wowlan_key_data key_data = { .use_rsc_tsc = false, .tkip = &tkip_cmd, .use_tkip = false, }; - int ret, i; - u16 seq; - u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT; + int ret; + int len __maybe_unused; - if (WARN_ON(!wowlan)) + if (!wowlan) { + /* + * mac80211 shouldn't get here, but for D3 test + * it doesn't warrant a warning + */ + WARN_ON(!test); return -EINVAL; + } key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); if (!key_data.rsc_tsc) @@ -795,8 +847,6 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) mutex_lock(&mvm->mutex); - old_aux_sta_id = mvm->aux_sta.sta_id; - /* see if there's only a single BSS vif and it's associated */ ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, @@ -820,60 +870,41 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv; - /* - * The D3 firmware still hardcodes the AP station ID for the - * BSS we're associated with as 0. Store the real STA ID here - * and assign 0. When we leave this function, we'll restore - * the original value for the resume code. - */ - old_ap_sta_id = mvm_ap_sta->sta_id; - mvm_ap_sta->sta_id = 0; - mvmvif->ap_sta_id = 0; - - /* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */ + /* TODO: wowlan_config_cmd.common.wowlan_ba_teardown_tids */ - wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported; + wowlan_config_cmd.common.is_11n_connection = + ap_sta->ht_cap.ht_supported; - /* - * We know the last used seqno, and the uCode expects to know that - * one, it will increment before TX. - */ - seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ; - wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq); + /* Query the last used seqno and set it */ + ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); + if (ret < 0) + goto out_noreset; + wowlan_config_cmd.common.non_qos_seq = cpu_to_le16(ret); - /* - * For QoS counters, we store the one to use next, so subtract 0x10 - * since the uCode will add 0x10 *before* using the value while we - * increment after using the value (i.e. store the next value to use). - */ - for (i = 0; i < IWL_MAX_TID_COUNT; i++) { - seq = mvm_ap_sta->tid_data[i].seq_number; - seq -= 0x10; - wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq); - } + iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, &wowlan_config_cmd.common); if (wowlan->disconnect) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | IWL_WOWLAN_WAKEUP_LINK_CHANGE); if (wowlan->magic_pkt) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); if (wowlan->gtk_rekey_failure) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); if (wowlan->eap_identity_req) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); if (wowlan->four_way_handshake) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); if (wowlan->n_patterns) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); if (wowlan->rfkill_release) - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); if (wowlan->tcp) { @@ -881,7 +912,7 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) * Set the "link change" (really "link lost") flag as well * since that implies losing the TCP connection. */ - wowlan_config_cmd.wakeup_filter |= + wowlan_config_cmd.common.wakeup_filter |= cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | @@ -912,16 +943,6 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) mvm->ptk_ivlen = 0; mvm->ptk_icvlen = 0; - /* - * The D3 firmware still hardcodes the AP station ID for the - * BSS we're associated with as 0. As a result, we have to move - * the auxiliary station to ID 1 so the ID 0 remains free for - * the AP station for later. - * We set the sta_id to 1 here, and reset it to its previous - * value (that we stored above) later. - */ - mvm->aux_sta.sta_id = 1; - ret = iwl_mvm_load_d3_fw(mvm); if (ret) goto out; @@ -949,7 +970,6 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) if (key_data.use_rsc_tsc) { struct iwl_host_cmd rsc_tsc_cmd = { .id = WOWLAN_TSC_RSC_PARAM, - .flags = CMD_SYNC, .data[0] = key_data.rsc_tsc, .dataflags[0] = IWL_HCMD_DFL_NOCOPY, .len[0] = sizeof(*key_data.rsc_tsc), @@ -963,7 +983,7 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) if (key_data.use_tkip) { ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TKIP_PARAM, - CMD_SYNC, sizeof(tkip_cmd), + 0, sizeof(tkip_cmd), &tkip_cmd); if (ret) goto out; @@ -980,8 +1000,7 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; ret = iwl_mvm_send_cmd_pdu(mvm, - WOWLAN_KEK_KCK_MATERIAL, - CMD_SYNC, + WOWLAN_KEK_KCK_MATERIAL, 0, sizeof(kek_kck_cmd), &kek_kck_cmd); if (ret) @@ -989,9 +1008,7 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) } } - ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, - CMD_SYNC, sizeof(wowlan_config_cmd), - &wowlan_config_cmd); + ret = iwl_mvm_send_wowlan_config_cmd(mvm, &wowlan_config_cmd); if (ret) goto out; @@ -999,7 +1016,7 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) if (ret) goto out; - ret = iwl_mvm_send_proto_offload(mvm, vif); + ret = iwl_mvm_send_proto_offload(mvm, vif, false, 0); if (ret) goto out; @@ -1007,96 +1024,81 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) if (ret) goto out; + ret = iwl_mvm_power_update_device(mvm); + if (ret) + goto out; + + ret = iwl_mvm_power_update_mac(mvm); + if (ret) + goto out; + +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (mvm->d3_wake_sysassert) + d3_cfg_cmd_data.wakeup_flags |= + cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); +#endif + /* must be last -- this switches firmware state */ - ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC, - sizeof(d3_cfg_cmd), &d3_cfg_cmd); + ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); if (ret) goto out; +#ifdef CONFIG_IWLWIFI_DEBUGFS + len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); + if (len >= sizeof(u32)) { + mvm->d3_test_pme_ptr = + le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); + } +#endif + iwl_free_resp(&d3_cfg_cmd); clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); - iwl_trans_d3_suspend(mvm->trans); + iwl_trans_d3_suspend(mvm->trans, test); out: - mvm->aux_sta.sta_id = old_aux_sta_id; - mvm_ap_sta->sta_id = old_ap_sta_id; - mvmvif->ap_sta_id = old_ap_sta_id; - out_noreset: - kfree(key_data.rsc_tsc); if (ret < 0) ieee80211_restart_hw(mvm->hw); + out_noreset: + kfree(key_data.rsc_tsc); mutex_unlock(&mvm->mutex); return ret; } -static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, - struct ieee80211_vif *vif) +int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) { - u32 base = mvm->error_event_table; - struct error_table_start { - /* cf. struct iwl_error_event_table */ - u32 valid; - u32 error_id; - } err_info; - struct cfg80211_wowlan_wakeup wakeup = { - .pattern_idx = -1, - }; - struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; - struct iwl_host_cmd cmd = { - .id = WOWLAN_GET_STATUSES, - .flags = CMD_SYNC | CMD_WANT_SKB, - }; - struct iwl_wowlan_status *status; - u32 reasons; - int ret, len; - struct sk_buff *pkt = NULL; - - iwl_trans_read_mem_bytes(mvm->trans, base, - &err_info, sizeof(err_info)); - - if (err_info.valid) { - IWL_INFO(mvm, "error table is valid (%d)\n", - err_info.valid); - if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { - wakeup.rfkill_release = true; - ieee80211_report_wowlan_wakeup(vif, &wakeup, - GFP_KERNEL); - } - return; - } - - /* only for tracing for now */ - ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, CMD_SYNC, 0, NULL); - if (ret) - IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); - - ret = iwl_mvm_send_cmd(mvm, &cmd); - if (ret) { - IWL_ERR(mvm, "failed to query status (%d)\n", ret); - return; - } - - /* RF-kill already asserted again... */ - if (!cmd.resp_pkt) - return; + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - if (len - sizeof(struct iwl_cmd_header) < sizeof(*status)) { - IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); - goto out; + if (iwl_mvm_is_d0i3_supported(mvm)) { + mutex_lock(&mvm->d0i3_suspend_mutex); + __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); + mutex_unlock(&mvm->d0i3_suspend_mutex); + return 0; } - status = (void *)cmd.resp_pkt->data; + return __iwl_mvm_suspend(hw, wowlan, false); +} - if (len - sizeof(struct iwl_cmd_header) != - sizeof(*status) + - ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4)) { - IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); - goto out; - } +/* converted data from the different status responses */ +struct iwl_wowlan_status_data { + u16 pattern_number; + u16 qos_seq_ctr[8]; + u32 wakeup_reasons; + u32 wake_packet_length; + u32 wake_packet_bufsize; + const u8 *wake_packet; +}; - reasons = le32_to_cpu(status->wakeup_reasons); +static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_wowlan_status_data *status) +{ + struct sk_buff *pkt = NULL; + struct cfg80211_wowlan_wakeup wakeup = { + .pattern_idx = -1, + }; + struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; + u32 reasons = status->wakeup_reasons; if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { wakeup_report = NULL; @@ -1108,7 +1110,7 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) wakeup.pattern_idx = - le16_to_cpu(status->pattern_number); + status->pattern_number; if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) @@ -1136,8 +1138,8 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, wakeup.tcp_match = true; if (status->wake_packet_bufsize) { - int pktsize = le32_to_cpu(status->wake_packet_bufsize); - int pktlen = le32_to_cpu(status->wake_packet_length); + int pktsize = status->wake_packet_bufsize; + int pktlen = status->wake_packet_length; const u8 *pktdata = status->wake_packet; struct ieee80211_hdr *hdr = (void *)pktdata; int truncated = pktlen - pktsize; @@ -1159,6 +1161,12 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, pktsize -= hdrlen; if (ieee80211_has_protected(hdr->frame_control)) { + /* + * This is unlocked and using gtk_i(c)vlen, + * but since everything is under RTNL still + * that's not really a problem - changing + * it would be difficult. + */ if (is_multicast_ether_addr(hdr->addr1)) { ivlen = mvm->gtk_ivlen; icvlen += mvm->gtk_icvlen; @@ -1209,20 +1217,386 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, report: ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); kfree_skb(pkt); +} + +static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, + struct ieee80211_key_seq *seq) +{ + u64 pn; + + pn = le64_to_cpu(sc->pn); + seq->ccmp.pn[0] = pn >> 40; + seq->ccmp.pn[1] = pn >> 32; + seq->ccmp.pn[2] = pn >> 24; + seq->ccmp.pn[3] = pn >> 16; + seq->ccmp.pn[4] = pn >> 8; + seq->ccmp.pn[5] = pn; +} + +static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, + struct ieee80211_key_seq *seq) +{ + seq->tkip.iv32 = le32_to_cpu(sc->iv32); + seq->tkip.iv16 = le16_to_cpu(sc->iv16); +} + +static void iwl_mvm_set_aes_rx_seq(struct aes_sc *scs, + struct ieee80211_key_conf *key) +{ + int tid; + + BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); + + for (tid = 0; tid < IWL_NUM_RSC; tid++) { + struct ieee80211_key_seq seq = {}; + + iwl_mvm_aes_sc_to_seq(&scs[tid], &seq); + ieee80211_set_key_rx_seq(key, tid, &seq); + } +} + +static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs, + struct ieee80211_key_conf *key) +{ + int tid; + + BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); + + for (tid = 0; tid < IWL_NUM_RSC; tid++) { + struct ieee80211_key_seq seq = {}; + + iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq); + ieee80211_set_key_rx_seq(key, tid, &seq); + } +} + +static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key, + struct iwl_wowlan_status *status) +{ + union iwl_all_tsc_rsc *rsc = &status->gtk.rsc.all_tsc_rsc; + + switch (key->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + iwl_mvm_set_aes_rx_seq(rsc->aes.multicast_rsc, key); + break; + case WLAN_CIPHER_SUITE_TKIP: + iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key); + break; + default: + WARN_ON(1); + } +} + +struct iwl_mvm_d3_gtk_iter_data { + struct iwl_wowlan_status *status; + void *last_gtk; + u32 cipher; + bool find_phase, unhandled_cipher; + int num_keys; +}; + +static void iwl_mvm_d3_update_gtks(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + struct ieee80211_key_conf *key, + void *_data) +{ + struct iwl_mvm_d3_gtk_iter_data *data = _data; + + if (data->unhandled_cipher) + return; + + switch (key->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + /* ignore WEP completely, nothing to do */ + return; + case WLAN_CIPHER_SUITE_CCMP: + case WLAN_CIPHER_SUITE_TKIP: + /* we support these */ + break; + default: + /* everything else (even CMAC for MFP) - disconnect from AP */ + data->unhandled_cipher = true; + return; + } + + data->num_keys++; + + /* + * pairwise key - update sequence counters only; + * note that this assumes no TDLS sessions are active + */ + if (sta) { + struct ieee80211_key_seq seq = {}; + union iwl_all_tsc_rsc *sc = &data->status->gtk.rsc.all_tsc_rsc; + + if (data->find_phase) + return; + + switch (key->cipher) { + case WLAN_CIPHER_SUITE_CCMP: + iwl_mvm_aes_sc_to_seq(&sc->aes.tsc, &seq); + iwl_mvm_set_aes_rx_seq(sc->aes.unicast_rsc, key); + break; + case WLAN_CIPHER_SUITE_TKIP: + iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq); + iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key); + break; + } + ieee80211_set_key_tx_seq(key, &seq); + + /* that's it for this key */ + return; + } + + if (data->find_phase) { + data->last_gtk = key; + data->cipher = key->cipher; + return; + } + + if (data->status->num_of_gtk_rekeys) + ieee80211_remove_key(key); + else if (data->last_gtk == key) + iwl_mvm_set_key_rx_seq(key, data->status); +} + +static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_wowlan_status *status) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm_d3_gtk_iter_data gtkdata = { + .status = status, + }; + u32 disconnection_reasons = + IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | + IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; + + if (!status || !vif->bss_conf.bssid) + return false; + + if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons) + return false; + + /* find last GTK that we used initially, if any */ + gtkdata.find_phase = true; + ieee80211_iter_keys(mvm->hw, vif, + iwl_mvm_d3_update_gtks, >kdata); + /* not trying to keep connections with MFP/unhandled ciphers */ + if (gtkdata.unhandled_cipher) + return false; + if (!gtkdata.num_keys) + goto out; + if (!gtkdata.last_gtk) + return false; + + /* + * invalidate all other GTKs that might still exist and update + * the one that we used + */ + gtkdata.find_phase = false; + ieee80211_iter_keys(mvm->hw, vif, + iwl_mvm_d3_update_gtks, >kdata); + + if (status->num_of_gtk_rekeys) { + struct ieee80211_key_conf *key; + struct { + struct ieee80211_key_conf conf; + u8 key[32]; + } conf = { + .conf.cipher = gtkdata.cipher, + .conf.keyidx = status->gtk.key_index, + }; + + switch (gtkdata.cipher) { + case WLAN_CIPHER_SUITE_CCMP: + conf.conf.keylen = WLAN_KEY_LEN_CCMP; + memcpy(conf.conf.key, status->gtk.decrypt_key, + WLAN_KEY_LEN_CCMP); + break; + case WLAN_CIPHER_SUITE_TKIP: + conf.conf.keylen = WLAN_KEY_LEN_TKIP; + memcpy(conf.conf.key, status->gtk.decrypt_key, 16); + /* leave TX MIC key zeroed, we don't use it anyway */ + memcpy(conf.conf.key + + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, + status->gtk.tkip_mic_key, 8); + break; + } + + key = ieee80211_gtk_rekey_add(vif, &conf.conf); + if (IS_ERR(key)) + return false; + iwl_mvm_set_key_rx_seq(key, status); + } + + if (status->num_of_gtk_rekeys) { + __be64 replay_ctr = + cpu_to_be64(le64_to_cpu(status->replay_ctr)); + ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, + (void *)&replay_ctr, GFP_KERNEL); + } + +out: + mvmvif->seqno_valid = true; + /* +0x10 because the set API expects next-to-use, not last-used */ + mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10; + + return true; +} + +/* releases the MVM mutex */ +static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + u32 base = mvm->error_event_table; + struct error_table_start { + /* cf. struct iwl_error_event_table */ + u32 valid; + u32 error_id; + } err_info; + struct iwl_host_cmd cmd = { + .id = WOWLAN_GET_STATUSES, + .flags = CMD_WANT_SKB, + }; + struct iwl_wowlan_status_data status; + struct iwl_wowlan_status *fw_status; + int ret, len, status_size, i; + bool keep; + struct ieee80211_sta *ap_sta; + struct iwl_mvm_sta *mvm_ap_sta; + + iwl_trans_read_mem_bytes(mvm->trans, base, + &err_info, sizeof(err_info)); + + if (err_info.valid) { + IWL_INFO(mvm, "error table is valid (%d)\n", + err_info.valid); + if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { + struct cfg80211_wowlan_wakeup wakeup = { + .rfkill_release = true, + }; + ieee80211_report_wowlan_wakeup(vif, &wakeup, + GFP_KERNEL); + } + goto out_unlock; + } + + /* only for tracing for now */ + ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL); + if (ret) + IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + if (ret) { + IWL_ERR(mvm, "failed to query status (%d)\n", ret); + goto out_unlock; + } + + /* RF-kill already asserted again... */ + if (!cmd.resp_pkt) + goto out_unlock; + + status_size = sizeof(*fw_status); + + len = iwl_rx_packet_payload_len(cmd.resp_pkt); + if (len < status_size) { + IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); + goto out_free_resp; + } + + fw_status = (void *)cmd.resp_pkt->data; + + status.pattern_number = le16_to_cpu(fw_status->pattern_number); + for (i = 0; i < 8; i++) + status.qos_seq_ctr[i] = + le16_to_cpu(fw_status->qos_seq_ctr[i]); + status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons); + status.wake_packet_length = + le32_to_cpu(fw_status->wake_packet_length); + status.wake_packet_bufsize = + le32_to_cpu(fw_status->wake_packet_bufsize); + status.wake_packet = fw_status->wake_packet; + + if (len != status_size + ALIGN(status.wake_packet_bufsize, 4)) { + IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); + goto out_free_resp; + } + + /* still at hard-coded place 0 for D3 image */ + ap_sta = rcu_dereference_protected( + mvm->fw_id_to_mac_id[0], + lockdep_is_held(&mvm->mutex)); + if (IS_ERR_OR_NULL(ap_sta)) + goto out_free_resp; + + mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv; + for (i = 0; i < IWL_MAX_TID_COUNT; i++) { + u16 seq = status.qos_seq_ctr[i]; + /* firmware stores last-used value, we store next value */ + seq += 0x10; + mvm_ap_sta->tid_data[i].seq_number = seq; + } + + /* now we have all the data we need, unlock to avoid mac80211 issues */ + mutex_unlock(&mvm->mutex); + + iwl_mvm_report_wakeup_reasons(mvm, vif, &status); + + keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status); - out: iwl_free_resp(&cmd); + return keep; + + out_free_resp: + iwl_free_resp(&cmd); + out_unlock: + mutex_unlock(&mvm->mutex); + return false; } -int iwl_mvm_resume(struct ieee80211_hw *hw) +static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm) +{ +#ifdef CONFIG_IWLWIFI_DEBUGFS + const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN]; + u32 len = img->sec[IWL_UCODE_SECTION_DATA].len; + u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset; + + if (!mvm->store_d3_resume_sram) + return; + + if (!mvm->d3_resume_sram) { + mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL); + if (!mvm->d3_resume_sram) + return; + } + + iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len); +#endif +} + +static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + /* skip the one we keep connection on */ + if (data == vif) + return; + + if (vif->type == NL80211_IFTYPE_STATION) + ieee80211_resume_disconnect(vif); +} + +static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) { - struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_d3_iter_data resume_iter_data = { .mvm = mvm, }; struct ieee80211_vif *vif = NULL; int ret; enum iwl_d3_status d3_status; + bool keep = false; mutex_lock(&mvm->mutex); @@ -1236,7 +1610,7 @@ int iwl_mvm_resume(struct ieee80211_hw *hw) vif = resume_iter_data.vif; - ret = iwl_trans_d3_resume(mvm->trans, &d3_status); + ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test); if (ret) goto out_unlock; @@ -1245,22 +1619,153 @@ int iwl_mvm_resume(struct ieee80211_hw *hw) goto out_unlock; } - iwl_mvm_query_wakeup_reasons(mvm, vif); + /* query SRAM first in case we want event logging */ + iwl_mvm_read_d3_sram(mvm); + + keep = iwl_mvm_query_wakeup_reasons(mvm, vif); +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (keep) + mvm->keep_vif = vif; +#endif + /* has unlocked the mutex, so skip that */ + goto out; out_unlock: mutex_unlock(&mvm->mutex); - if (vif) - ieee80211_resume_disconnect(vif); + out: + if (!test) + ieee80211_iterate_active_interfaces_rtnl(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_d3_disconnect_iter, keep ? vif : NULL); /* return 1 to reconfigure the device */ set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); return 1; } +int iwl_mvm_resume(struct ieee80211_hw *hw) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + + if (iwl_mvm_is_d0i3_supported(mvm)) { + bool exit_now; + + mutex_lock(&mvm->d0i3_suspend_mutex); + __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); + exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP, + &mvm->d0i3_suspend_flags); + mutex_unlock(&mvm->d0i3_suspend_mutex); + if (exit_now) + _iwl_mvm_exit_d0i3(mvm); + return 0; + } + + return __iwl_mvm_resume(mvm, false); +} + void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); device_set_wakeup_enable(mvm->trans->dev, enabled); } + +#ifdef CONFIG_IWLWIFI_DEBUGFS +static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) +{ + struct iwl_mvm *mvm = inode->i_private; + int err; + + if (mvm->d3_test_active) + return -EBUSY; + + file->private_data = inode->i_private; + + ieee80211_stop_queues(mvm->hw); + synchronize_net(); + + /* start pseudo D3 */ + rtnl_lock(); + err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); + rtnl_unlock(); + if (err > 0) + err = -EINVAL; + if (err) { + ieee80211_wake_queues(mvm->hw); + return err; + } + mvm->d3_test_active = true; + mvm->keep_vif = NULL; + return 0; +} + +static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + u32 pme_asserted; + + while (true) { + /* read pme_ptr if available */ + if (mvm->d3_test_pme_ptr) { + pme_asserted = iwl_trans_read_mem32(mvm->trans, + mvm->d3_test_pme_ptr); + if (pme_asserted) + break; + } + + if (msleep_interruptible(100)) + break; + } + + return 0; +} + +static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + /* skip the one we keep connection on */ + if (_data == vif) + return; + + if (vif->type == NL80211_IFTYPE_STATION) + ieee80211_connection_loss(vif); +} + +static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) +{ + struct iwl_mvm *mvm = inode->i_private; + int remaining_time = 10; + + mvm->d3_test_active = false; + __iwl_mvm_resume(mvm, true); + iwl_abort_notification_waits(&mvm->notif_wait); + ieee80211_restart_hw(mvm->hw); + + /* wait for restart and disconnect all interfaces */ + while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && + remaining_time > 0) { + remaining_time--; + msleep(1000); + } + + if (remaining_time == 0) + IWL_ERR(mvm, "Timed out waiting for HW restart to finish!\n"); + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); + + ieee80211_wake_queues(mvm->hw); + + return 0; +} + +const struct file_operations iwl_dbgfs_d3_test_ops = { + .llseek = no_llseek, + .open = iwl_mvm_d3_test_open, + .read = iwl_mvm_d3_test_read, + .release = iwl_mvm_d3_test_release, +}; +#endif diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c new file mode 100644 index 00000000000..2e90ff795c1 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs-vif.c @@ -0,0 +1,596 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include "mvm.h" +#include "debugfs.h" + +static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + enum iwl_dbgfs_pm_mask param, int val) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_dbgfs_pm *dbgfs_pm = &mvmvif->dbgfs_pm; + + dbgfs_pm->mask |= param; + + switch (param) { + case MVM_DEBUGFS_PM_KEEP_ALIVE: { + struct ieee80211_hw *hw = mvm->hw; + int dtimper = hw->conf.ps_dtim_period ?: 1; + int dtimper_msec = dtimper * vif->bss_conf.beacon_int; + + IWL_DEBUG_POWER(mvm, "debugfs: set keep_alive= %d sec\n", val); + if (val * MSEC_PER_SEC < 3 * dtimper_msec) + IWL_WARN(mvm, + "debugfs: keep alive period (%ld msec) is less than minimum required (%d msec)\n", + val * MSEC_PER_SEC, 3 * dtimper_msec); + dbgfs_pm->keep_alive_seconds = val; + break; + } + case MVM_DEBUGFS_PM_SKIP_OVER_DTIM: + IWL_DEBUG_POWER(mvm, "skip_over_dtim %s\n", + val ? "enabled" : "disabled"); + dbgfs_pm->skip_over_dtim = val; + break; + case MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS: + IWL_DEBUG_POWER(mvm, "skip_dtim_periods=%d\n", val); + dbgfs_pm->skip_dtim_periods = val; + break; + case MVM_DEBUGFS_PM_RX_DATA_TIMEOUT: + IWL_DEBUG_POWER(mvm, "rx_data_timeout=%d\n", val); + dbgfs_pm->rx_data_timeout = val; + break; + case MVM_DEBUGFS_PM_TX_DATA_TIMEOUT: + IWL_DEBUG_POWER(mvm, "tx_data_timeout=%d\n", val); + dbgfs_pm->tx_data_timeout = val; + break; + case MVM_DEBUGFS_PM_LPRX_ENA: + IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled"); + dbgfs_pm->lprx_ena = val; + break; + case MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD: + IWL_DEBUG_POWER(mvm, "lprx_rssi_threshold=%d\n", val); + dbgfs_pm->lprx_rssi_threshold = val; + break; + case MVM_DEBUGFS_PM_SNOOZE_ENABLE: + IWL_DEBUG_POWER(mvm, "snooze_enable=%d\n", val); + dbgfs_pm->snooze_ena = val; + break; + case MVM_DEBUGFS_PM_UAPSD_MISBEHAVING: + IWL_DEBUG_POWER(mvm, "uapsd_misbehaving_enable=%d\n", val); + dbgfs_pm->uapsd_misbehaving = val; + break; + } +} + +static ssize_t iwl_dbgfs_pm_params_write(struct ieee80211_vif *vif, char *buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + enum iwl_dbgfs_pm_mask param; + int val, ret; + + if (!strncmp("keep_alive=", buf, 11)) { + if (sscanf(buf + 11, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_KEEP_ALIVE; + } else if (!strncmp("skip_over_dtim=", buf, 15)) { + if (sscanf(buf + 15, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_SKIP_OVER_DTIM; + } else if (!strncmp("skip_dtim_periods=", buf, 18)) { + if (sscanf(buf + 18, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS; + } else if (!strncmp("rx_data_timeout=", buf, 16)) { + if (sscanf(buf + 16, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_RX_DATA_TIMEOUT; + } else if (!strncmp("tx_data_timeout=", buf, 16)) { + if (sscanf(buf + 16, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT; + } else if (!strncmp("lprx=", buf, 5)) { + if (sscanf(buf + 5, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_LPRX_ENA; + } else if (!strncmp("lprx_rssi_threshold=", buf, 20)) { + if (sscanf(buf + 20, "%d", &val) != 1) + return -EINVAL; + if (val > POWER_LPRX_RSSI_THRESHOLD_MAX || val < + POWER_LPRX_RSSI_THRESHOLD_MIN) + return -EINVAL; + param = MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD; + } else if (!strncmp("snooze_enable=", buf, 14)) { + if (sscanf(buf + 14, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_SNOOZE_ENABLE; + } else if (!strncmp("uapsd_misbehaving=", buf, 18)) { + if (sscanf(buf + 18, "%d", &val) != 1) + return -EINVAL; + param = MVM_DEBUGFS_PM_UAPSD_MISBEHAVING; + } else { + return -EINVAL; + } + + mutex_lock(&mvm->mutex); + iwl_dbgfs_update_pm(mvm, vif, param, val); + ret = iwl_mvm_power_update_mac(mvm); + mutex_unlock(&mvm->mutex); + + return ret ?: count; +} + +static ssize_t iwl_dbgfs_pm_params_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_vif *vif = file->private_data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + char buf[512]; + int bufsz = sizeof(buf); + int pos; + + pos = iwl_mvm_power_mac_dbgfs_read(mvm, vif, buf, bufsz); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t iwl_dbgfs_mac_params_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_vif *vif = file->private_data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + u8 ap_sta_id; + struct ieee80211_chanctx_conf *chanctx_conf; + char buf[512]; + int bufsz = sizeof(buf); + int pos = 0; + int i; + + mutex_lock(&mvm->mutex); + + ap_sta_id = mvmvif->ap_sta_id; + + switch (ieee80211_vif_type_p2p(vif)) { + case NL80211_IFTYPE_ADHOC: + pos += scnprintf(buf+pos, bufsz-pos, "type: ibss\n"); + break; + case NL80211_IFTYPE_STATION: + pos += scnprintf(buf+pos, bufsz-pos, "type: bss\n"); + break; + case NL80211_IFTYPE_AP: + pos += scnprintf(buf+pos, bufsz-pos, "type: ap\n"); + break; + case NL80211_IFTYPE_P2P_CLIENT: + pos += scnprintf(buf+pos, bufsz-pos, "type: p2p client\n"); + break; + case NL80211_IFTYPE_P2P_GO: + pos += scnprintf(buf+pos, bufsz-pos, "type: p2p go\n"); + break; + case NL80211_IFTYPE_P2P_DEVICE: + pos += scnprintf(buf+pos, bufsz-pos, "type: p2p dev\n"); + break; + default: + break; + } + + pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n", + mvmvif->id, mvmvif->color); + pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n", + vif->bss_conf.bssid); + pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n"); + for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) + pos += scnprintf(buf+pos, bufsz-pos, + "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n", + i, mvmvif->queue_params[i].txop, + mvmvif->queue_params[i].cw_min, + mvmvif->queue_params[i].cw_max, + mvmvif->queue_params[i].aifs, + mvmvif->queue_params[i].uapsd); + + if (vif->type == NL80211_IFTYPE_STATION && + ap_sta_id != IWL_MVM_STATION_COUNT) { + struct ieee80211_sta *sta; + + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id], + lockdep_is_held(&mvm->mutex)); + if (!IS_ERR_OR_NULL(sta)) { + struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; + + pos += scnprintf(buf+pos, bufsz-pos, + "ap_sta_id %d - reduced Tx power %d\n", + ap_sta_id, + mvm_sta->bt_reduced_txpower); + } + } + + rcu_read_lock(); + chanctx_conf = rcu_dereference(vif->chanctx_conf); + if (chanctx_conf) + pos += scnprintf(buf+pos, bufsz-pos, + "idle rx chains %d, active rx chains: %d\n", + chanctx_conf->rx_chains_static, + chanctx_conf->rx_chains_dynamic); + rcu_read_unlock(); + + mutex_unlock(&mvm->mutex); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif, + enum iwl_dbgfs_bf_mask param, int value) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf; + + dbgfs_bf->mask |= param; + + switch (param) { + case MVM_DEBUGFS_BF_ENERGY_DELTA: + dbgfs_bf->bf_energy_delta = value; + break; + case MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA: + dbgfs_bf->bf_roaming_energy_delta = value; + break; + case MVM_DEBUGFS_BF_ROAMING_STATE: + dbgfs_bf->bf_roaming_state = value; + break; + case MVM_DEBUGFS_BF_TEMP_THRESHOLD: + dbgfs_bf->bf_temp_threshold = value; + break; + case MVM_DEBUGFS_BF_TEMP_FAST_FILTER: + dbgfs_bf->bf_temp_fast_filter = value; + break; + case MVM_DEBUGFS_BF_TEMP_SLOW_FILTER: + dbgfs_bf->bf_temp_slow_filter = value; + break; + case MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER: + dbgfs_bf->bf_enable_beacon_filter = value; + break; + case MVM_DEBUGFS_BF_DEBUG_FLAG: + dbgfs_bf->bf_debug_flag = value; + break; + case MVM_DEBUGFS_BF_ESCAPE_TIMER: + dbgfs_bf->bf_escape_timer = value; + break; + case MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT: + dbgfs_bf->ba_enable_beacon_abort = value; + break; + case MVM_DEBUGFS_BA_ESCAPE_TIMER: + dbgfs_bf->ba_escape_timer = value; + break; + } +} + +static ssize_t iwl_dbgfs_bf_params_write(struct ieee80211_vif *vif, char *buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + enum iwl_dbgfs_bf_mask param; + int value, ret = 0; + + if (!strncmp("bf_energy_delta=", buf, 16)) { + if (sscanf(buf+16, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_ENERGY_DELTA_MIN || + value > IWL_BF_ENERGY_DELTA_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_ENERGY_DELTA; + } else if (!strncmp("bf_roaming_energy_delta=", buf, 24)) { + if (sscanf(buf+24, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_ROAMING_ENERGY_DELTA_MIN || + value > IWL_BF_ROAMING_ENERGY_DELTA_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA; + } else if (!strncmp("bf_roaming_state=", buf, 17)) { + if (sscanf(buf+17, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_ROAMING_STATE_MIN || + value > IWL_BF_ROAMING_STATE_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_ROAMING_STATE; + } else if (!strncmp("bf_temp_threshold=", buf, 18)) { + if (sscanf(buf+18, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_TEMP_THRESHOLD_MIN || + value > IWL_BF_TEMP_THRESHOLD_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_TEMP_THRESHOLD; + } else if (!strncmp("bf_temp_fast_filter=", buf, 20)) { + if (sscanf(buf+20, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_TEMP_FAST_FILTER_MIN || + value > IWL_BF_TEMP_FAST_FILTER_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_TEMP_FAST_FILTER; + } else if (!strncmp("bf_temp_slow_filter=", buf, 20)) { + if (sscanf(buf+20, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_TEMP_SLOW_FILTER_MIN || + value > IWL_BF_TEMP_SLOW_FILTER_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_TEMP_SLOW_FILTER; + } else if (!strncmp("bf_enable_beacon_filter=", buf, 24)) { + if (sscanf(buf+24, "%d", &value) != 1) + return -EINVAL; + if (value < 0 || value > 1) + return -EINVAL; + param = MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER; + } else if (!strncmp("bf_debug_flag=", buf, 14)) { + if (sscanf(buf+14, "%d", &value) != 1) + return -EINVAL; + if (value < 0 || value > 1) + return -EINVAL; + param = MVM_DEBUGFS_BF_DEBUG_FLAG; + } else if (!strncmp("bf_escape_timer=", buf, 16)) { + if (sscanf(buf+16, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BF_ESCAPE_TIMER_MIN || + value > IWL_BF_ESCAPE_TIMER_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BF_ESCAPE_TIMER; + } else if (!strncmp("ba_escape_timer=", buf, 16)) { + if (sscanf(buf+16, "%d", &value) != 1) + return -EINVAL; + if (value < IWL_BA_ESCAPE_TIMER_MIN || + value > IWL_BA_ESCAPE_TIMER_MAX) + return -EINVAL; + param = MVM_DEBUGFS_BA_ESCAPE_TIMER; + } else if (!strncmp("ba_enable_beacon_abort=", buf, 23)) { + if (sscanf(buf+23, "%d", &value) != 1) + return -EINVAL; + if (value < 0 || value > 1) + return -EINVAL; + param = MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT; + } else { + return -EINVAL; + } + + mutex_lock(&mvm->mutex); + iwl_dbgfs_update_bf(vif, param, value); + if (param == MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER && !value) + ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); + else + ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); + mutex_unlock(&mvm->mutex); + + return ret ?: count; +} + +static ssize_t iwl_dbgfs_bf_params_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_vif *vif = file->private_data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + char buf[256]; + int pos = 0; + const size_t bufsz = sizeof(buf); + struct iwl_beacon_filter_cmd cmd = { + IWL_BF_CMD_CONFIG_DEFAULTS, + .bf_enable_beacon_filter = + cpu_to_le32(IWL_BF_ENABLE_BEACON_FILTER_DEFAULT), + .ba_enable_beacon_abort = + cpu_to_le32(IWL_BA_ENABLE_BEACON_ABORT_DEFAULT), + }; + + iwl_mvm_beacon_filter_debugfs_parameters(vif, &cmd); + if (mvmvif->bf_data.bf_enabled) + cmd.bf_enable_beacon_filter = cpu_to_le32(1); + else + cmd.bf_enable_beacon_filter = 0; + + pos += scnprintf(buf+pos, bufsz-pos, "bf_energy_delta = %d\n", + le32_to_cpu(cmd.bf_energy_delta)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_energy_delta = %d\n", + le32_to_cpu(cmd.bf_roaming_energy_delta)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_roaming_state = %d\n", + le32_to_cpu(cmd.bf_roaming_state)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_threshold = %d\n", + le32_to_cpu(cmd.bf_temp_threshold)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_fast_filter = %d\n", + le32_to_cpu(cmd.bf_temp_fast_filter)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_temp_slow_filter = %d\n", + le32_to_cpu(cmd.bf_temp_slow_filter)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_enable_beacon_filter = %d\n", + le32_to_cpu(cmd.bf_enable_beacon_filter)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_debug_flag = %d\n", + le32_to_cpu(cmd.bf_debug_flag)); + pos += scnprintf(buf+pos, bufsz-pos, "bf_escape_timer = %d\n", + le32_to_cpu(cmd.bf_escape_timer)); + pos += scnprintf(buf+pos, bufsz-pos, "ba_escape_timer = %d\n", + le32_to_cpu(cmd.ba_escape_timer)); + pos += scnprintf(buf+pos, bufsz-pos, "ba_enable_beacon_abort = %d\n", + le32_to_cpu(cmd.ba_enable_beacon_abort)); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t iwl_dbgfs_low_latency_write(struct ieee80211_vif *vif, char *buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm *mvm = mvmvif->mvm; + u8 value; + int ret; + + ret = kstrtou8(buf, 0, &value); + if (ret) + return ret; + if (value > 1) + return -EINVAL; + + mutex_lock(&mvm->mutex); + iwl_mvm_update_low_latency(mvm, vif, value); + mutex_unlock(&mvm->mutex); + + return count; +} + +static ssize_t iwl_dbgfs_low_latency_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct ieee80211_vif *vif = file->private_data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + char buf[3]; + + buf[0] = mvmvif->low_latency ? '1' : '0'; + buf[1] = '\n'; + buf[2] = '\0'; + return simple_read_from_buffer(user_buf, count, ppos, buf, sizeof(buf)); +} + +#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ + _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) +#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ + _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct ieee80211_vif) +#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \ + if (!debugfs_create_file(#name, mode, parent, vif, \ + &iwl_dbgfs_##name##_ops)) \ + goto err; \ + } while (0) + +MVM_DEBUGFS_READ_FILE_OPS(mac_params); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(pm_params, 32); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(bf_params, 256); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(low_latency, 10); + +void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +{ + struct dentry *dbgfs_dir = vif->debugfs_dir; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + char buf[100]; + + /* + * Check if debugfs directory already exist before creating it. + * This may happen when, for example, resetting hw or suspend-resume + */ + if (!dbgfs_dir || mvmvif->dbgfs_dir) + return; + + mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir); + mvmvif->mvm = mvm; + + if (!mvmvif->dbgfs_dir) { + IWL_ERR(mvm, "Failed to create debugfs directory under %s\n", + dbgfs_dir->d_name.name); + return; + } + + if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM && + ((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) || + (vif->type == NL80211_IFTYPE_STATION && vif->p2p && + mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM))) + MVM_DEBUGFS_ADD_FILE_VIF(pm_params, mvmvif->dbgfs_dir, S_IWUSR | + S_IRUSR); + + MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, S_IRUSR); + MVM_DEBUGFS_ADD_FILE_VIF(low_latency, mvmvif->dbgfs_dir, + S_IRUSR | S_IWUSR); + + if (vif->type == NL80211_IFTYPE_STATION && !vif->p2p && + mvmvif == mvm->bf_allowed_vif) + MVM_DEBUGFS_ADD_FILE_VIF(bf_params, mvmvif->dbgfs_dir, + S_IRUSR | S_IWUSR); + + /* + * Create symlink for convenience pointing to interface specific + * debugfs entries for the driver. For example, under + * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/ + * find + * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/ + */ + snprintf(buf, 100, "../../../%s/%s/%s/%s", + dbgfs_dir->d_parent->d_parent->d_name.name, + dbgfs_dir->d_parent->d_name.name, + dbgfs_dir->d_name.name, + mvmvif->dbgfs_dir->d_name.name); + + mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name, + mvm->debugfs_dir, buf); + if (!mvmvif->dbgfs_slink) + IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n", + dbgfs_dir->d_name.name); + return; +err: + IWL_ERR(mvm, "Can't create debugfs entity\n"); +} + +void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + debugfs_remove(mvmvif->dbgfs_slink); + mvmvif->dbgfs_slink = NULL; + + debugfs_remove_recursive(mvmvif->dbgfs_dir); + mvmvif->dbgfs_dir = NULL; +} diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c index 2053dccefcd..29ca72695ea 100644 --- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -60,33 +60,23 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ +#include <linux/vmalloc.h> + #include "mvm.h" #include "sta.h" #include "iwl-io.h" +#include "debugfs.h" +#include "iwl-fw-error-dump.h" -struct iwl_dbgfs_mvm_ctx { - struct iwl_mvm *mvm; - struct ieee80211_vif *vif; -}; - -static ssize_t iwl_dbgfs_tx_flush_write(struct file *file, - const char __user *user_buf, +static ssize_t iwl_dbgfs_tx_flush_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { - struct iwl_mvm *mvm = file->private_data; - - char buf[16]; - int buf_size, ret; + int ret; u32 scd_q_msk; if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) return -EIO; - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%x", &scd_q_msk) != 1) return -EINVAL; @@ -99,114 +89,134 @@ static ssize_t iwl_dbgfs_tx_flush_write(struct file *file, return ret; } -static ssize_t iwl_dbgfs_sta_drain_write(struct file *file, - const char __user *user_buf, +static ssize_t iwl_dbgfs_sta_drain_write(struct iwl_mvm *mvm, char *buf, size_t count, loff_t *ppos) { - struct iwl_mvm *mvm = file->private_data; - struct ieee80211_sta *sta; - - char buf[8]; - int buf_size, sta_id, drain, ret; + struct iwl_mvm_sta *mvmsta; + int sta_id, drain, ret; if (!mvm->ucode_loaded || mvm->cur_ucode != IWL_UCODE_REGULAR) return -EIO; - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; - if (sscanf(buf, "%d %d", &sta_id, &drain) != 2) return -EINVAL; + if (sta_id < 0 || sta_id >= IWL_MVM_STATION_COUNT) + return -EINVAL; + if (drain < 0 || drain > 1) + return -EINVAL; mutex_lock(&mvm->mutex); - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], - lockdep_is_held(&mvm->mutex)); - if (IS_ERR_OR_NULL(sta)) + mvmsta = iwl_mvm_sta_from_staid_protected(mvm, sta_id); + + if (!mvmsta) ret = -ENOENT; else - ret = iwl_mvm_drain_sta(mvm, (void *)sta->drv_priv, drain) ? : - count; + ret = iwl_mvm_drain_sta(mvm, mvmsta, drain) ? : count; mutex_unlock(&mvm->mutex); return ret; } +static int iwl_dbgfs_fw_error_dump_open(struct inode *inode, struct file *file) +{ + struct iwl_mvm *mvm = inode->i_private; + int ret; + + if (!mvm) + return -EINVAL; + + mutex_lock(&mvm->mutex); + if (!mvm->fw_error_dump) { + ret = -ENODATA; + goto out; + } + + file->private_data = mvm->fw_error_dump; + mvm->fw_error_dump = NULL; + ret = 0; + +out: + mutex_unlock(&mvm->mutex); + return ret; +} + +static ssize_t iwl_dbgfs_fw_error_dump_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_fw_error_dump_file *dump_file = file->private_data; + + return simple_read_from_buffer(user_buf, count, ppos, + dump_file, + le32_to_cpu(dump_file->file_len)); +} + +static int iwl_dbgfs_fw_error_dump_release(struct inode *inode, + struct file *file) +{ + vfree(file->private_data); + + return 0; +} + static ssize_t iwl_dbgfs_sram_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; const struct fw_img *img; - int ofs, len, pos = 0; - size_t bufsz, ret; - char *buf; + unsigned int ofs, len; + size_t ret; u8 *ptr; + if (!mvm->ucode_loaded) + return -EINVAL; + /* default is to dump the entire data segment */ - if (!mvm->dbgfs_sram_offset && !mvm->dbgfs_sram_len) { - mvm->dbgfs_sram_offset = 0x800000; - if (!mvm->ucode_loaded) - return -EINVAL; - img = &mvm->fw->img[mvm->cur_ucode]; - mvm->dbgfs_sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; - } - len = mvm->dbgfs_sram_len; + img = &mvm->fw->img[mvm->cur_ucode]; + ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; + len = img->sec[IWL_UCODE_SECTION_DATA].len; - bufsz = len * 4 + 256; - buf = kzalloc(bufsz, GFP_KERNEL); - if (!buf) - return -ENOMEM; + if (mvm->dbgfs_sram_len) { + ofs = mvm->dbgfs_sram_offset; + len = mvm->dbgfs_sram_len; + } ptr = kzalloc(len, GFP_KERNEL); - if (!ptr) { - kfree(buf); + if (!ptr) return -ENOMEM; - } - pos += scnprintf(buf + pos, bufsz - pos, "sram_len: 0x%x\n", len); - pos += scnprintf(buf + pos, bufsz - pos, "sram_offset: 0x%x\n", - mvm->dbgfs_sram_offset); - - iwl_trans_read_mem_bytes(mvm->trans, - mvm->dbgfs_sram_offset, - ptr, len); - for (ofs = 0; ofs < len; ofs += 16) { - pos += scnprintf(buf + pos, bufsz - pos, "0x%.4x ", ofs); - hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos, - bufsz - pos, false); - pos += strlen(buf + pos); - if (bufsz - pos > 0) - buf[pos++] = '\n'; - } + iwl_trans_read_mem_bytes(mvm->trans, ofs, ptr, len); - ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + ret = simple_read_from_buffer(user_buf, count, ppos, ptr, len); - kfree(buf); kfree(ptr); return ret; } -static ssize_t iwl_dbgfs_sram_write(struct file *file, - const char __user *user_buf, size_t count, - loff_t *ppos) +static ssize_t iwl_dbgfs_sram_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) { - struct iwl_mvm *mvm = file->private_data; - char buf[64]; - int buf_size; + const struct fw_img *img; u32 offset, len; + u32 img_offset, img_len; - memset(buf, 0, sizeof(buf)); - buf_size = min(count, sizeof(buf) - 1); - if (copy_from_user(buf, user_buf, buf_size)) - return -EFAULT; + if (!mvm->ucode_loaded) + return -EINVAL; + + img = &mvm->fw->img[mvm->cur_ucode]; + img_offset = img->sec[IWL_UCODE_SECTION_DATA].offset; + img_len = img->sec[IWL_UCODE_SECTION_DATA].len; if (sscanf(buf, "%x,%x", &offset, &len) == 2) { if ((offset & 0x3) || (len & 0x3)) return -EINVAL; + + if (offset + len > img_offset + img_len) + return -EINVAL; + mvm->dbgfs_sram_offset = offset; mvm->dbgfs_sram_len = len; } else { @@ -246,119 +256,48 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf, return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } -static ssize_t iwl_dbgfs_power_down_allow_write(struct file *file, - const char __user *user_buf, +static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; - char buf[8] = {}; - int allow; - - if (!mvm->ucode_loaded) - return -EIO; - - if (copy_from_user(buf, user_buf, sizeof(buf))) - return -EFAULT; - - if (sscanf(buf, "%d", &allow) != 1) - return -EINVAL; - - IWL_DEBUG_POWER(mvm, "%s device power down\n", - allow ? "allow" : "prevent"); + char buf[64]; + int bufsz = sizeof(buf); + int pos = 0; - /* - * TODO: Send REPLY_DEBUG_CMD (0xf0) when FW support it - */ + pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n", + mvm->disable_power_off); + pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n", + mvm->disable_power_off_d3); - return count; + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } -static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) +static ssize_t iwl_dbgfs_disable_power_off_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) { - struct iwl_mvm *mvm = file->private_data; - char buf[8] = {}; - int allow; + int ret, val; - if (copy_from_user(buf, user_buf, sizeof(buf))) - return -EFAULT; + if (!mvm->ucode_loaded) + return -EIO; - if (sscanf(buf, "%d", &allow) != 1) + if (!strncmp("disable_power_off_d0=", buf, 21)) { + if (sscanf(buf + 21, "%d", &val) != 1) + return -EINVAL; + mvm->disable_power_off = val; + } else if (!strncmp("disable_power_off_d3=", buf, 21)) { + if (sscanf(buf + 21, "%d", &val) != 1) + return -EINVAL; + mvm->disable_power_off_d3 = val; + } else { return -EINVAL; - - IWL_DEBUG_POWER(mvm, "%s device power down in d3\n", - allow ? "allow" : "prevent"); - - /* - * TODO: When WoWLAN FW alive notification happens, driver will send - * REPLY_DEBUG_CMD setting power_down_allow flag according to - * mvm->prevent_power_down_d3 - */ - mvm->prevent_power_down_d3 = !allow; - - return count; -} - -static ssize_t iwl_dbgfs_mac_params_read(struct file *file, - char __user *user_buf, - size_t count, loff_t *ppos) -{ - struct ieee80211_vif *vif = file->private_data; - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - struct iwl_mvm *mvm = mvmvif->dbgfs_data; - u8 ap_sta_id; - struct ieee80211_chanctx_conf *chanctx_conf; - char buf[512]; - int bufsz = sizeof(buf); - int pos = 0; - int i; - - mutex_lock(&mvm->mutex); - - ap_sta_id = mvmvif->ap_sta_id; - - pos += scnprintf(buf+pos, bufsz-pos, "mac id/color: %d / %d\n", - mvmvif->id, mvmvif->color); - pos += scnprintf(buf+pos, bufsz-pos, "bssid: %pM\n", - vif->bss_conf.bssid); - pos += scnprintf(buf+pos, bufsz-pos, "QoS:\n"); - for (i = 0; i < ARRAY_SIZE(mvmvif->queue_params); i++) { - pos += scnprintf(buf+pos, bufsz-pos, - "\t%d: txop:%d - cw_min:%d - cw_max = %d - aifs = %d upasd = %d\n", - i, mvmvif->queue_params[i].txop, - mvmvif->queue_params[i].cw_min, - mvmvif->queue_params[i].cw_max, - mvmvif->queue_params[i].aifs, - mvmvif->queue_params[i].uapsd); - } - - if (vif->type == NL80211_IFTYPE_STATION && - ap_sta_id != IWL_MVM_STATION_COUNT) { - struct ieee80211_sta *sta; - struct iwl_mvm_sta *mvm_sta; - - sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[ap_sta_id], - lockdep_is_held(&mvm->mutex)); - mvm_sta = (void *)sta->drv_priv; - pos += scnprintf(buf+pos, bufsz-pos, - "ap_sta_id %d - reduced Tx power %d\n", - ap_sta_id, mvm_sta->bt_reduced_txpower); - } - - rcu_read_lock(); - chanctx_conf = rcu_dereference(vif->chanctx_conf); - if (chanctx_conf) { - pos += scnprintf(buf+pos, bufsz-pos, - "idle rx chains %d, active rx chains: %d\n", - chanctx_conf->rx_chains_static, - chanctx_conf->rx_chains_dynamic); } - rcu_read_unlock(); + mutex_lock(&mvm->mutex); + ret = iwl_mvm_power_update_device(mvm); mutex_unlock(&mvm->mutex); - return simple_read_from_buffer(user_buf, count, ppos, buf, pos); + return ret ?: count; } #define BT_MBOX_MSG(_notif, _num, _field) \ @@ -440,15 +379,24 @@ static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, BT_MBOX_PRINT(3, UPDATE_REQUEST, true); pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n", - notif->bt_status); + notif->bt_status); pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n", - notif->bt_open_conn); + notif->bt_open_conn); pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n", - notif->bt_traffic_load); + notif->bt_traffic_load); pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n", - notif->bt_agg_traffic_load); + notif->bt_agg_traffic_load); pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n", - notif->bt_ci_compliance); + notif->bt_ci_compliance); + pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n", + le32_to_cpu(notif->primary_ch_lut)); + pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n", + le32_to_cpu(notif->secondary_ch_lut)); + pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n", + le32_to_cpu(notif->bt_activity_grading)); + pos += scnprintf(buf+pos, bufsz-pos, + "antenna isolation = %d CORUN LUT index = %d\n", + mvm->last_ant_isol, mvm->last_corun_lut); mutex_unlock(&mvm->mutex); @@ -459,89 +407,785 @@ static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf, } #undef BT_MBOX_PRINT -static ssize_t iwl_dbgfs_fw_restart_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) +static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) { struct iwl_mvm *mvm = file->private_data; - bool restart_fw = iwlwifi_mod_params.restart_fw; + struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd; + char buf[256]; + int bufsz = sizeof(buf); + int pos = 0; + + mutex_lock(&mvm->mutex); + + pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n"); + pos += scnprintf(buf+pos, bufsz-pos, + "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n", + le64_to_cpu(cmd->bt_primary_ci), + !!cmd->co_run_bw_primary); + pos += scnprintf(buf+pos, bufsz-pos, + "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n", + le64_to_cpu(cmd->bt_secondary_ci), + !!cmd->co_run_bw_secondary); + + pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n"); + pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n", + iwl_bt_ack_kill_msk[mvm->bt_kill_msk]); + pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n", + iwl_bt_cts_kill_msk[mvm->bt_kill_msk]); + + mutex_unlock(&mvm->mutex); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +iwl_dbgfs_bt_tx_prio_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + u32 bt_tx_prio; + + if (sscanf(buf, "%u", &bt_tx_prio) != 1) + return -EINVAL; + if (bt_tx_prio > 4) + return -EINVAL; + + mvm->bt_tx_prio = bt_tx_prio; + + return count; +} + +#define PRINT_STATS_LE32(_str, _val) \ + pos += scnprintf(buf + pos, bufsz - pos, \ + fmt_table, _str, \ + le32_to_cpu(_val)) + +static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file, + char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + static const char *fmt_table = "\t%-30s %10u\n"; + static const char *fmt_header = "%-32s\n"; + int pos = 0; + char *buf; + int ret; + /* 43 is the size of each data line, 33 is the size of each header */ + size_t bufsz = + ((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) + + (4 * 33) + 1; + + struct mvm_statistics_rx_phy *ofdm; + struct mvm_statistics_rx_phy *cck; + struct mvm_statistics_rx_non_phy *general; + struct mvm_statistics_rx_ht_phy *ht; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + mutex_lock(&mvm->mutex); + + ofdm = &mvm->rx_stats.ofdm; + cck = &mvm->rx_stats.cck; + general = &mvm->rx_stats.general; + ht = &mvm->rx_stats.ofdm_ht; + + pos += scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - OFDM"); + PRINT_STATS_LE32("ina_cnt", ofdm->ina_cnt); + PRINT_STATS_LE32("fina_cnt", ofdm->fina_cnt); + PRINT_STATS_LE32("plcp_err", ofdm->plcp_err); + PRINT_STATS_LE32("crc32_err", ofdm->crc32_err); + PRINT_STATS_LE32("overrun_err", ofdm->overrun_err); + PRINT_STATS_LE32("early_overrun_err", ofdm->early_overrun_err); + PRINT_STATS_LE32("crc32_good", ofdm->crc32_good); + PRINT_STATS_LE32("false_alarm_cnt", ofdm->false_alarm_cnt); + PRINT_STATS_LE32("fina_sync_err_cnt", ofdm->fina_sync_err_cnt); + PRINT_STATS_LE32("sfd_timeout", ofdm->sfd_timeout); + PRINT_STATS_LE32("fina_timeout", ofdm->fina_timeout); + PRINT_STATS_LE32("unresponded_rts", ofdm->unresponded_rts); + PRINT_STATS_LE32("rxe_frame_lmt_overrun", + ofdm->rxe_frame_limit_overrun); + PRINT_STATS_LE32("sent_ack_cnt", ofdm->sent_ack_cnt); + PRINT_STATS_LE32("sent_cts_cnt", ofdm->sent_cts_cnt); + PRINT_STATS_LE32("sent_ba_rsp_cnt", ofdm->sent_ba_rsp_cnt); + PRINT_STATS_LE32("dsp_self_kill", ofdm->dsp_self_kill); + PRINT_STATS_LE32("mh_format_err", ofdm->mh_format_err); + PRINT_STATS_LE32("re_acq_main_rssi_sum", ofdm->re_acq_main_rssi_sum); + PRINT_STATS_LE32("reserved", ofdm->reserved); + + pos += scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - CCK"); + PRINT_STATS_LE32("ina_cnt", cck->ina_cnt); + PRINT_STATS_LE32("fina_cnt", cck->fina_cnt); + PRINT_STATS_LE32("plcp_err", cck->plcp_err); + PRINT_STATS_LE32("crc32_err", cck->crc32_err); + PRINT_STATS_LE32("overrun_err", cck->overrun_err); + PRINT_STATS_LE32("early_overrun_err", cck->early_overrun_err); + PRINT_STATS_LE32("crc32_good", cck->crc32_good); + PRINT_STATS_LE32("false_alarm_cnt", cck->false_alarm_cnt); + PRINT_STATS_LE32("fina_sync_err_cnt", cck->fina_sync_err_cnt); + PRINT_STATS_LE32("sfd_timeout", cck->sfd_timeout); + PRINT_STATS_LE32("fina_timeout", cck->fina_timeout); + PRINT_STATS_LE32("unresponded_rts", cck->unresponded_rts); + PRINT_STATS_LE32("rxe_frame_lmt_overrun", + cck->rxe_frame_limit_overrun); + PRINT_STATS_LE32("sent_ack_cnt", cck->sent_ack_cnt); + PRINT_STATS_LE32("sent_cts_cnt", cck->sent_cts_cnt); + PRINT_STATS_LE32("sent_ba_rsp_cnt", cck->sent_ba_rsp_cnt); + PRINT_STATS_LE32("dsp_self_kill", cck->dsp_self_kill); + PRINT_STATS_LE32("mh_format_err", cck->mh_format_err); + PRINT_STATS_LE32("re_acq_main_rssi_sum", cck->re_acq_main_rssi_sum); + PRINT_STATS_LE32("reserved", cck->reserved); + + pos += scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - GENERAL"); + PRINT_STATS_LE32("bogus_cts", general->bogus_cts); + PRINT_STATS_LE32("bogus_ack", general->bogus_ack); + PRINT_STATS_LE32("non_bssid_frames", general->non_bssid_frames); + PRINT_STATS_LE32("filtered_frames", general->filtered_frames); + PRINT_STATS_LE32("non_channel_beacons", general->non_channel_beacons); + PRINT_STATS_LE32("channel_beacons", general->channel_beacons); + PRINT_STATS_LE32("num_missed_bcon", general->num_missed_bcon); + PRINT_STATS_LE32("adc_rx_saturation_time", + general->adc_rx_saturation_time); + PRINT_STATS_LE32("ina_detection_search_time", + general->ina_detection_search_time); + PRINT_STATS_LE32("beacon_silence_rssi_a", + general->beacon_silence_rssi_a); + PRINT_STATS_LE32("beacon_silence_rssi_b", + general->beacon_silence_rssi_b); + PRINT_STATS_LE32("beacon_silence_rssi_c", + general->beacon_silence_rssi_c); + PRINT_STATS_LE32("interference_data_flag", + general->interference_data_flag); + PRINT_STATS_LE32("channel_load", general->channel_load); + PRINT_STATS_LE32("dsp_false_alarms", general->dsp_false_alarms); + PRINT_STATS_LE32("beacon_rssi_a", general->beacon_rssi_a); + PRINT_STATS_LE32("beacon_rssi_b", general->beacon_rssi_b); + PRINT_STATS_LE32("beacon_rssi_c", general->beacon_rssi_c); + PRINT_STATS_LE32("beacon_energy_a", general->beacon_energy_a); + PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b); + PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c); + PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills); + PRINT_STATS_LE32("mac_id", general->mac_id); + PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu); + + pos += scnprintf(buf + pos, bufsz - pos, fmt_header, + "Statistics_Rx - HT"); + PRINT_STATS_LE32("plcp_err", ht->plcp_err); + PRINT_STATS_LE32("overrun_err", ht->overrun_err); + PRINT_STATS_LE32("early_overrun_err", ht->early_overrun_err); + PRINT_STATS_LE32("crc32_good", ht->crc32_good); + PRINT_STATS_LE32("crc32_err", ht->crc32_err); + PRINT_STATS_LE32("mh_format_err", ht->mh_format_err); + PRINT_STATS_LE32("agg_crc32_good", ht->agg_crc32_good); + PRINT_STATS_LE32("agg_mpdu_cnt", ht->agg_mpdu_cnt); + PRINT_STATS_LE32("agg_cnt", ht->agg_cnt); + PRINT_STATS_LE32("unsupport_mcs", ht->unsupport_mcs); + + mutex_unlock(&mvm->mutex); + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + + return ret; +} +#undef PRINT_STAT_LE32 + +static ssize_t iwl_dbgfs_frame_stats_read(struct iwl_mvm *mvm, + char __user *user_buf, size_t count, + loff_t *ppos, + struct iwl_mvm_frame_stats *stats) +{ + char *buff, *pos, *endpos; + int idx, i; int ret; + static const size_t bufsz = 1024; + + buff = kmalloc(bufsz, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + spin_lock_bh(&mvm->drv_stats_lock); + + pos = buff; + endpos = pos + bufsz; + + pos += scnprintf(pos, endpos - pos, + "Legacy/HT/VHT\t:\t%d/%d/%d\n", + stats->legacy_frames, + stats->ht_frames, + stats->vht_frames); + pos += scnprintf(pos, endpos - pos, "20/40/80\t:\t%d/%d/%d\n", + stats->bw_20_frames, + stats->bw_40_frames, + stats->bw_80_frames); + pos += scnprintf(pos, endpos - pos, "NGI/SGI\t\t:\t%d/%d\n", + stats->ngi_frames, + stats->sgi_frames); + pos += scnprintf(pos, endpos - pos, "SISO/MIMO2\t:\t%d/%d\n", + stats->siso_frames, + stats->mimo2_frames); + pos += scnprintf(pos, endpos - pos, "FAIL/SCSS\t:\t%d/%d\n", + stats->fail_frames, + stats->success_frames); + pos += scnprintf(pos, endpos - pos, "MPDUs agg\t:\t%d\n", + stats->agg_frames); + pos += scnprintf(pos, endpos - pos, "A-MPDUs\t\t:\t%d\n", + stats->ampdu_count); + pos += scnprintf(pos, endpos - pos, "Avg MPDUs/A-MPDU:\t%d\n", + stats->ampdu_count > 0 ? + (stats->agg_frames / stats->ampdu_count) : 0); + + pos += scnprintf(pos, endpos - pos, "Last Rates\n"); + + idx = stats->last_frame_idx - 1; + for (i = 0; i < ARRAY_SIZE(stats->last_rates); i++) { + idx = (idx + 1) % ARRAY_SIZE(stats->last_rates); + if (stats->last_rates[idx] == 0) + continue; + pos += scnprintf(pos, endpos - pos, "Rate[%d]: ", + (int)(ARRAY_SIZE(stats->last_rates) - i)); + pos += rs_pretty_print_rate(pos, stats->last_rates[idx]); + } + spin_unlock_bh(&mvm->drv_stats_lock); - iwlwifi_mod_params.restart_fw = true; + ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); + kfree(buff); + + return ret; +} + +static ssize_t iwl_dbgfs_drv_rx_stats_read(struct file *file, + char __user *user_buf, size_t count, + loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + + return iwl_dbgfs_frame_stats_read(mvm, user_buf, count, ppos, + &mvm->drv_rx_stats); +} + +static ssize_t iwl_dbgfs_fw_restart_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + int ret; mutex_lock(&mvm->mutex); + /* allow one more restart that we're provoking here */ + if (mvm->restart_fw >= 0) + mvm->restart_fw++; + /* take the return value to make compiler happy - it will fail anyway */ - ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, CMD_SYNC, 0, NULL); + ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_ERROR, 0, 0, NULL); mutex_unlock(&mvm->mutex); - iwlwifi_mod_params.restart_fw = restart_fw; + return count; +} + +static ssize_t iwl_dbgfs_fw_nmi_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + iwl_force_nmi(mvm->trans); return count; } -#define MVM_DEBUGFS_READ_FILE_OPS(name) \ -static const struct file_operations iwl_dbgfs_##name##_ops = { \ - .read = iwl_dbgfs_##name##_read, \ - .open = simple_open, \ - .llseek = generic_file_llseek, \ +static ssize_t +iwl_dbgfs_scan_ant_rxchain_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + int pos = 0; + char buf[32]; + const size_t bufsz = sizeof(buf); + + /* print which antennas were set for the scan command by the user */ + pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: "); + if (mvm->scan_rx_ant & ANT_A) + pos += scnprintf(buf + pos, bufsz - pos, "A"); + if (mvm->scan_rx_ant & ANT_B) + pos += scnprintf(buf + pos, bufsz - pos, "B"); + if (mvm->scan_rx_ant & ANT_C) + pos += scnprintf(buf + pos, bufsz - pos, "C"); + pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); } -#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name) \ -static const struct file_operations iwl_dbgfs_##name##_ops = { \ - .write = iwl_dbgfs_##name##_write, \ - .read = iwl_dbgfs_##name##_read, \ - .open = simple_open, \ - .llseek = generic_file_llseek, \ -}; +static ssize_t +iwl_dbgfs_scan_ant_rxchain_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + u8 scan_rx_ant; -#define MVM_DEBUGFS_WRITE_FILE_OPS(name) \ -static const struct file_operations iwl_dbgfs_##name##_ops = { \ - .write = iwl_dbgfs_##name##_write, \ - .open = simple_open, \ - .llseek = generic_file_llseek, \ -}; + if (sscanf(buf, "%hhx", &scan_rx_ant) != 1) + return -EINVAL; + if (scan_rx_ant > ANT_ABC) + return -EINVAL; + if (scan_rx_ant & ~mvm->fw->valid_rx_ant) + return -EINVAL; -#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) do { \ - if (!debugfs_create_file(#name, mode, parent, mvm, \ - &iwl_dbgfs_##name##_ops)) \ - goto err; \ - } while (0) + mvm->scan_rx_ant = scan_rx_ant; + + return count; +} + +#define ADD_TEXT(...) pos += scnprintf(buf + pos, bufsz - pos, __VA_ARGS__) +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING +static ssize_t iwl_dbgfs_bcast_filters_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + struct iwl_bcast_filter_cmd cmd; + const struct iwl_fw_bcast_filter *filter; + char *buf; + int bufsz = 1024; + int i, j, pos = 0; + ssize_t ret; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + mutex_lock(&mvm->mutex); + if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { + ADD_TEXT("None\n"); + mutex_unlock(&mvm->mutex); + goto out; + } + mutex_unlock(&mvm->mutex); + + for (i = 0; cmd.filters[i].attrs[0].mask; i++) { + filter = &cmd.filters[i]; + + ADD_TEXT("Filter [%d]:\n", i); + ADD_TEXT("\tDiscard=%d\n", filter->discard); + ADD_TEXT("\tFrame Type: %s\n", + filter->frame_type ? "IPv4" : "Generic"); + + for (j = 0; j < ARRAY_SIZE(filter->attrs); j++) { + const struct iwl_fw_bcast_filter_attr *attr; + + attr = &filter->attrs[j]; + if (!attr->mask) + break; + + ADD_TEXT("\tAttr [%d]: offset=%d (from %s), mask=0x%x, value=0x%x reserved=0x%x\n", + j, attr->offset, + attr->offset_type ? "IP End" : + "Payload Start", + be32_to_cpu(attr->mask), + be32_to_cpu(attr->val), + le16_to_cpu(attr->reserved1)); + } + } +out: + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_bcast_filters_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + int pos, next_pos; + struct iwl_fw_bcast_filter filter = {}; + struct iwl_bcast_filter_cmd cmd; + u32 filter_id, attr_id, mask, value; + int err = 0; + + if (sscanf(buf, "%d %hhi %hhi %n", &filter_id, &filter.discard, + &filter.frame_type, &pos) != 3) + return -EINVAL; + + if (filter_id >= ARRAY_SIZE(mvm->dbgfs_bcast_filtering.cmd.filters) || + filter.frame_type > BCAST_FILTER_FRAME_TYPE_IPV4) + return -EINVAL; + + for (attr_id = 0; attr_id < ARRAY_SIZE(filter.attrs); + attr_id++) { + struct iwl_fw_bcast_filter_attr *attr = + &filter.attrs[attr_id]; + + if (pos >= count) + break; + + if (sscanf(&buf[pos], "%hhi %hhi %i %i %n", + &attr->offset, &attr->offset_type, + &mask, &value, &next_pos) != 4) + return -EINVAL; + + attr->mask = cpu_to_be32(mask); + attr->val = cpu_to_be32(value); + if (mask) + filter.num_attrs++; + + pos += next_pos; + } + + mutex_lock(&mvm->mutex); + memcpy(&mvm->dbgfs_bcast_filtering.cmd.filters[filter_id], + &filter, sizeof(filter)); + + /* send updated bcast filtering configuration */ + if (mvm->dbgfs_bcast_filtering.override && + iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) + err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, + sizeof(cmd), &cmd); + mutex_unlock(&mvm->mutex); + + return err ?: count; +} + +static ssize_t iwl_dbgfs_bcast_filters_macs_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + struct iwl_bcast_filter_cmd cmd; + char *buf; + int bufsz = 1024; + int i, pos = 0; + ssize_t ret; + + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + mutex_lock(&mvm->mutex); + if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) { + ADD_TEXT("None\n"); + mutex_unlock(&mvm->mutex); + goto out; + } + mutex_unlock(&mvm->mutex); + + for (i = 0; i < ARRAY_SIZE(cmd.macs); i++) { + const struct iwl_fw_bcast_mac *mac = &cmd.macs[i]; + + ADD_TEXT("Mac [%d]: discard=%d attached_filters=0x%x\n", + i, mac->default_discard, mac->attached_filters); + } +out: + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + kfree(buf); + return ret; +} + +static ssize_t iwl_dbgfs_bcast_filters_macs_write(struct iwl_mvm *mvm, + char *buf, size_t count, + loff_t *ppos) +{ + struct iwl_bcast_filter_cmd cmd; + struct iwl_fw_bcast_mac mac = {}; + u32 mac_id, attached_filters; + int err = 0; + + if (!mvm->bcast_filters) + return -ENOENT; + + if (sscanf(buf, "%d %hhi %i", &mac_id, &mac.default_discard, + &attached_filters) != 3) + return -EINVAL; + + if (mac_id >= ARRAY_SIZE(cmd.macs) || + mac.default_discard > 1 || + attached_filters >= BIT(ARRAY_SIZE(cmd.filters))) + return -EINVAL; + + mac.attached_filters = cpu_to_le16(attached_filters); + + mutex_lock(&mvm->mutex); + memcpy(&mvm->dbgfs_bcast_filtering.cmd.macs[mac_id], + &mac, sizeof(mac)); + + /* send updated bcast filtering configuration */ + if (mvm->dbgfs_bcast_filtering.override && + iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) + err = iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, + sizeof(cmd), &cmd); + mutex_unlock(&mvm->mutex); + + return err ?: count; +} +#endif + +#ifdef CONFIG_PM_SLEEP +static ssize_t iwl_dbgfs_d3_sram_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + int store; + + if (sscanf(buf, "%d", &store) != 1) + return -EINVAL; + + mvm->store_d3_resume_sram = store; + + return count; +} + +static ssize_t iwl_dbgfs_d3_sram_read(struct file *file, char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + const struct fw_img *img; + int ofs, len, pos = 0; + size_t bufsz, ret; + char *buf; + u8 *ptr = mvm->d3_resume_sram; -#define MVM_DEBUGFS_ADD_FILE_VIF(name, parent, mode) do { \ - if (!debugfs_create_file(#name, mode, parent, vif, \ + img = &mvm->fw->img[IWL_UCODE_WOWLAN]; + len = img->sec[IWL_UCODE_SECTION_DATA].len; + + bufsz = len * 4 + 256; + buf = kzalloc(bufsz, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + pos += scnprintf(buf, bufsz, "D3 SRAM capture: %sabled\n", + mvm->store_d3_resume_sram ? "en" : "dis"); + + if (ptr) { + for (ofs = 0; ofs < len; ofs += 16) { + pos += scnprintf(buf + pos, bufsz - pos, + "0x%.4x ", ofs); + hex_dump_to_buffer(ptr + ofs, 16, 16, 1, buf + pos, + bufsz - pos, false); + pos += strlen(buf + pos); + if (bufsz - pos > 0) + buf[pos++] = '\n'; + } + } else { + pos += scnprintf(buf + pos, bufsz - pos, + "(no data captured)\n"); + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buf, pos); + + kfree(buf); + + return ret; +} +#endif + +#define PRINT_MVM_REF(ref) do { \ + if (test_bit(ref, mvm->ref_bitmap)) \ + pos += scnprintf(buf + pos, bufsz - pos, \ + "\t(0x%lx) %s\n", \ + BIT(ref), #ref); \ +} while (0) + +static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + int pos = 0; + char buf[256]; + const size_t bufsz = sizeof(buf); + + pos += scnprintf(buf + pos, bufsz - pos, "taken mvm refs: 0x%lx\n", + mvm->ref_bitmap[0]); + + PRINT_MVM_REF(IWL_MVM_REF_UCODE_DOWN); + PRINT_MVM_REF(IWL_MVM_REF_SCAN); + PRINT_MVM_REF(IWL_MVM_REF_ROC); + PRINT_MVM_REF(IWL_MVM_REF_P2P_CLIENT); + PRINT_MVM_REF(IWL_MVM_REF_AP_IBSS); + PRINT_MVM_REF(IWL_MVM_REF_USER); + PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t iwl_dbgfs_d0i3_refs_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + unsigned long value; + int ret; + bool taken; + + ret = kstrtoul(buf, 10, &value); + if (ret < 0) + return ret; + + mutex_lock(&mvm->mutex); + + taken = test_bit(IWL_MVM_REF_USER, mvm->ref_bitmap); + if (value == 1 && !taken) + iwl_mvm_ref(mvm, IWL_MVM_REF_USER); + else if (value == 0 && taken) + iwl_mvm_unref(mvm, IWL_MVM_REF_USER); + else + ret = -EINVAL; + + mutex_unlock(&mvm->mutex); + + if (ret < 0) + return ret; + return count; +} + +#define MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz) \ + _MVM_DEBUGFS_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) +#define MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz) \ + _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, bufsz, struct iwl_mvm) +#define MVM_DEBUGFS_ADD_FILE_ALIAS(alias, name, parent, mode) do { \ + if (!debugfs_create_file(alias, mode, parent, mvm, \ &iwl_dbgfs_##name##_ops)) \ goto err; \ } while (0) +#define MVM_DEBUGFS_ADD_FILE(name, parent, mode) \ + MVM_DEBUGFS_ADD_FILE_ALIAS(#name, name, parent, mode) + +static ssize_t +iwl_dbgfs_prph_reg_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_mvm *mvm = file->private_data; + int pos = 0; + char buf[32]; + const size_t bufsz = sizeof(buf); + + if (!mvm->dbgfs_prph_reg_addr) + return -EINVAL; + + pos += scnprintf(buf + pos, bufsz - pos, "Reg 0x%x: (0x%x)\n", + mvm->dbgfs_prph_reg_addr, + iwl_read_prph(mvm->trans, mvm->dbgfs_prph_reg_addr)); + + return simple_read_from_buffer(user_buf, count, ppos, buf, pos); +} + +static ssize_t +iwl_dbgfs_prph_reg_write(struct iwl_mvm *mvm, char *buf, + size_t count, loff_t *ppos) +{ + u8 args; + u32 value; + + args = sscanf(buf, "%i %i", &mvm->dbgfs_prph_reg_addr, &value); + /* if we only want to set the reg address - nothing more to do */ + if (args == 1) + goto out; + + /* otherwise, make sure we have both address and value */ + if (args != 2) + return -EINVAL; + + iwl_write_prph(mvm->trans, mvm->dbgfs_prph_reg_addr, value); +out: + return count; +} + +MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64); /* Device wide debugfs entries */ -MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush); -MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain); -MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram); +MVM_DEBUGFS_WRITE_FILE_OPS(tx_flush, 16); +MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain, 8); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram, 64); MVM_DEBUGFS_READ_FILE_OPS(stations); MVM_DEBUGFS_READ_FILE_OPS(bt_notif); -MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow); -MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow); -MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart); +MVM_DEBUGFS_READ_FILE_OPS(bt_cmd); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off, 64); +MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats); +MVM_DEBUGFS_READ_FILE_OPS(drv_rx_stats); +MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart, 10); +MVM_DEBUGFS_WRITE_FILE_OPS(fw_nmi, 10); +MVM_DEBUGFS_WRITE_FILE_OPS(bt_tx_prio, 10); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain, 8); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(d0i3_refs, 8); + +static const struct file_operations iwl_dbgfs_fw_error_dump_ops = { + .open = iwl_dbgfs_fw_error_dump_open, + .read = iwl_dbgfs_fw_error_dump_read, + .release = iwl_dbgfs_fw_error_dump_release, +}; + +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING +MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters, 256); +MVM_DEBUGFS_READ_WRITE_FILE_OPS(bcast_filters_macs, 256); +#endif -/* Interface specific debugfs entries */ -MVM_DEBUGFS_READ_FILE_OPS(mac_params); +#ifdef CONFIG_PM_SLEEP +MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram, 8); +#endif int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir) { + struct dentry *bcast_dir __maybe_unused; char buf[100]; + spin_lock_init(&mvm->drv_stats_lock); + mvm->debugfs_dir = dbgfs_dir; MVM_DEBUGFS_ADD_FILE(tx_flush, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(sta_drain, mvm->debugfs_dir, S_IWUSR); MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR); MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR); + MVM_DEBUGFS_ADD_FILE(fw_error_dump, dbgfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR); - MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR); - MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR); + MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir, + S_IRUSR | S_IWUSR); + MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR); + MVM_DEBUGFS_ADD_FILE(drv_rx_stats, mvm->debugfs_dir, S_IRUSR); MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(fw_nmi, mvm->debugfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(bt_tx_prio, mvm->debugfs_dir, S_IWUSR); + MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir, + S_IWUSR | S_IRUSR); + MVM_DEBUGFS_ADD_FILE(prph_reg, mvm->debugfs_dir, S_IWUSR | S_IRUSR); + MVM_DEBUGFS_ADD_FILE(d0i3_refs, mvm->debugfs_dir, S_IRUSR | S_IWUSR); + +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING) { + bcast_dir = debugfs_create_dir("bcast_filtering", + mvm->debugfs_dir); + if (!bcast_dir) + goto err; + + if (!debugfs_create_bool("override", S_IRUSR | S_IWUSR, + bcast_dir, + &mvm->dbgfs_bcast_filtering.override)) + goto err; + + MVM_DEBUGFS_ADD_FILE_ALIAS("filters", bcast_filters, + bcast_dir, S_IWUSR | S_IRUSR); + MVM_DEBUGFS_ADD_FILE_ALIAS("macs", bcast_filters_macs, + bcast_dir, S_IWUSR | S_IRUSR); + } +#endif + +#ifdef CONFIG_PM_SLEEP + MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR); + MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR); + if (!debugfs_create_bool("d3_wake_sysassert", S_IRUSR | S_IWUSR, + mvm->debugfs_dir, &mvm->d3_wake_sysassert)) + goto err; +#endif + + if (!debugfs_create_blob("nvm_hw", S_IRUSR, + mvm->debugfs_dir, &mvm->nvm_hw_blob)) + goto err; + if (!debugfs_create_blob("nvm_sw", S_IRUSR, + mvm->debugfs_dir, &mvm->nvm_sw_blob)) + goto err; + if (!debugfs_create_blob("nvm_calib", S_IRUSR, + mvm->debugfs_dir, &mvm->nvm_calib_blob)) + goto err; + if (!debugfs_create_blob("nvm_prod", S_IRUSR, + mvm->debugfs_dir, &mvm->nvm_prod_blob)) + goto err; /* * Create a symlink with mac80211. It will be removed when mac80211 @@ -558,58 +1202,3 @@ err: IWL_ERR(mvm, "Can't create the mvm debugfs directory\n"); return -ENOMEM; } - -void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif) -{ - struct dentry *dbgfs_dir = vif->debugfs_dir; - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - char buf[100]; - - if (!dbgfs_dir) - return; - - mvmvif->dbgfs_dir = debugfs_create_dir("iwlmvm", dbgfs_dir); - mvmvif->dbgfs_data = mvm; - - if (!mvmvif->dbgfs_dir) { - IWL_ERR(mvm, "Failed to create debugfs directory under %s\n", - dbgfs_dir->d_name.name); - return; - } - - MVM_DEBUGFS_ADD_FILE_VIF(mac_params, mvmvif->dbgfs_dir, - S_IRUSR); - - /* - * Create symlink for convenience pointing to interface specific - * debugfs entries for the driver. For example, under - * /sys/kernel/debug/iwlwifi/0000\:02\:00.0/iwlmvm/ - * find - * netdev:wlan0 -> ../../../ieee80211/phy0/netdev:wlan0/iwlmvm/ - */ - snprintf(buf, 100, "../../../%s/%s/%s/%s", - dbgfs_dir->d_parent->d_parent->d_name.name, - dbgfs_dir->d_parent->d_name.name, - dbgfs_dir->d_name.name, - mvmvif->dbgfs_dir->d_name.name); - - mvmvif->dbgfs_slink = debugfs_create_symlink(dbgfs_dir->d_name.name, - mvm->debugfs_dir, buf); - if (!mvmvif->dbgfs_slink) - IWL_ERR(mvm, "Can't create debugfs symbolic link under %s\n", - dbgfs_dir->d_name.name); - return; -err: - IWL_ERR(mvm, "Can't create debugfs entity\n"); -} - -void iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif) -{ - struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - - debugfs_remove(mvmvif->dbgfs_slink); - mvmvif->dbgfs_slink = NULL; - - debugfs_remove_recursive(mvmvif->dbgfs_dir); - mvmvif->dbgfs_dir = NULL; -} diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.h b/drivers/net/wireless/iwlwifi/mvm/debugfs.h new file mode 100644 index 00000000000..e3a9774af49 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.h @@ -0,0 +1,101 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +#define MVM_DEBUGFS_READ_FILE_OPS(name) \ +static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .read = iwl_dbgfs_##name##_read, \ + .open = simple_open, \ + .llseek = generic_file_llseek, \ +} + +#define MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \ +static ssize_t _iwl_dbgfs_##name##_write(struct file *file, \ + const char __user *user_buf, \ + size_t count, loff_t *ppos) \ +{ \ + argtype *arg = file->private_data; \ + char buf[buflen] = {}; \ + size_t buf_size = min(count, sizeof(buf) - 1); \ + \ + if (copy_from_user(buf, user_buf, buf_size)) \ + return -EFAULT; \ + \ + return iwl_dbgfs_##name##_write(arg, buf, buf_size, ppos); \ +} \ + +#define _MVM_DEBUGFS_READ_WRITE_FILE_OPS(name, buflen, argtype) \ +MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \ +static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .write = _iwl_dbgfs_##name##_write, \ + .read = iwl_dbgfs_##name##_read, \ + .open = simple_open, \ + .llseek = generic_file_llseek, \ +}; + +#define _MVM_DEBUGFS_WRITE_FILE_OPS(name, buflen, argtype) \ +MVM_DEBUGFS_WRITE_WRAPPER(name, buflen, argtype) \ +static const struct file_operations iwl_dbgfs_##name##_ops = { \ + .write = _iwl_dbgfs_##name##_write, \ + .open = simple_open, \ + .llseek = generic_file_llseek, \ +}; diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-coex.h index 05c61d6f384..5fe82c29c8a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-coex.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -70,39 +70,34 @@ /** * enum iwl_bt_coex_flags - flags for BT_COEX command - * @BT_CH_PRIMARY_EN: - * @BT_CH_SECONDARY_EN: - * @BT_NOTIF_COEX_OFF: * @BT_COEX_MODE_POS: * @BT_COEX_MODE_MSK: * @BT_COEX_DISABLE: * @BT_COEX_2W: * @BT_COEX_3W: * @BT_COEX_NW: - * @BT_USE_DEFAULTS: - * @BT_SYNC_2_BT_DISABLE: - * @BT_COEX_CORUNNING_TBL_EN: + * @BT_COEX_SYNC2SCO: + * @BT_COEX_CORUNNING: + * @BT_COEX_MPLUT: + * + * The COEX_MODE must be set for each command. Even if it is not changed. */ enum iwl_bt_coex_flags { - BT_CH_PRIMARY_EN = BIT(0), - BT_CH_SECONDARY_EN = BIT(1), - BT_NOTIF_COEX_OFF = BIT(2), BT_COEX_MODE_POS = 3, BT_COEX_MODE_MSK = BITS(3) << BT_COEX_MODE_POS, BT_COEX_DISABLE = 0x0 << BT_COEX_MODE_POS, BT_COEX_2W = 0x1 << BT_COEX_MODE_POS, BT_COEX_3W = 0x2 << BT_COEX_MODE_POS, BT_COEX_NW = 0x3 << BT_COEX_MODE_POS, - BT_USE_DEFAULTS = BIT(6), - BT_SYNC_2_BT_DISABLE = BIT(7), - /* - * For future use - when the flags will be enlarged - * BT_COEX_CORUNNING_TBL_EN = BIT(8), - */ + BT_COEX_SYNC2SCO = BIT(7), + BT_COEX_CORUNNING = BIT(8), + BT_COEX_MPLUT = BIT(9), }; /* * indicates what has changed in the BT_COEX command. + * BT_VALID_ENABLE must be set for each command. Commands without this bit will + * discarded by the firmware */ enum iwl_bt_coex_valid_bit_msk { BT_VALID_ENABLE = BIT(0), @@ -121,11 +116,9 @@ enum iwl_bt_coex_valid_bit_msk { BT_VALID_CORUN_LUT_40 = BIT(13), BT_VALID_ANT_ISOLATION = BIT(14), BT_VALID_ANT_ISOLATION_THRS = BIT(15), - /* - * For future use - when the valid flags will be enlarged - * BT_VALID_TXTX_DELTA_FREQ_THRS = BIT(16), - * BT_VALID_TXRX_MAX_FREQ_0 = BIT(17), - */ + BT_VALID_TXTX_DELTA_FREQ_THRS = BIT(16), + BT_VALID_TXRX_MAX_FREQ_0 = BIT(17), + BT_VALID_SYNC_TO_SCO = BIT(18), }; /** @@ -142,47 +135,93 @@ enum iwl_bt_reduced_tx_power { BT_REDUCED_TX_POWER_DATA = BIT(1), }; +enum iwl_bt_coex_lut_type { + BT_COEX_TIGHT_LUT = 0, + BT_COEX_LOOSE_LUT, + BT_COEX_TX_DIS_LUT, + + BT_COEX_MAX_LUT, + BT_COEX_INVALID_LUT = 0xff, +}; /* BT_COEX_DECISION_LUT_INDEX_API_E_VER_1 */ + #define BT_COEX_LUT_SIZE (12) +#define BT_COEX_CORUN_LUT_SIZE (32) +#define BT_COEX_MULTI_PRIO_LUT_SIZE (2) +#define BT_COEX_BOOST_SIZE (4) +#define BT_REDUCED_TX_POWER_BIT BIT(7) /** * struct iwl_bt_coex_cmd - bt coex configuration command * @flags:&enum iwl_bt_coex_flags - * @lead_time: * @max_kill: - * @bt3_time_t7_value: - * @kill_ack_msk: - * @kill_cts_msk: - * @bt3_prio_sample_time: - * @bt3_timer_t2_value: - * @bt4_reaction_time: - * @decision_lut[12]: * @bt_reduced_tx_power: enum %iwl_bt_reduced_tx_power - * @valid_bit_msk: enum %iwl_bt_coex_valid_bit_msk - * @bt_prio_boost: values for PTA boost register + * @override_primary_lut: enum %iwl_bt_coex_lut_type: BT_COEX_INVALID_LUT + * should be set by default + * @override_secondary_lut: enum %iwl_bt_coex_lut_type: BT_COEX_INVALID_LUT + * should be set by default + * @bt4_antenna_isolation: antenna isolation + * @bt4_antenna_isolation_thr: antenna threshold value + * @bt4_tx_tx_delta_freq_thr: TxTx delta frequency + * @bt4_tx_rx_max_freq0: TxRx max frequency + * @bt_prio_boost: BT priority boost registers * @wifi_tx_prio_boost: SW boost of wifi tx priority * @wifi_rx_prio_boost: SW boost of wifi rx priority + * @kill_ack_msk: kill ACK mask. 1 - Tx ACK, 0 - kill Tx of ACK. + * @kill_cts_msk: kill CTS mask. 1 - Tx CTS, 0 - kill Tx of CTS. + * @decision_lut: PTA decision LUT, per Prio-Ch + * @bt4_multiprio_lut: multi priority LUT configuration + * @bt4_corun_lut20: co-running 20 MHz LUT configuration + * @bt4_corun_lut40: co-running 40 MHz LUT configuration + * @valid_bit_msk: enum %iwl_bt_coex_valid_bit_msk * * The structure is used for the BT_COEX command. */ struct iwl_bt_coex_cmd { - u8 flags; - u8 lead_time; + __le32 flags; u8 max_kill; - u8 bt3_time_t7_value; + u8 bt_reduced_tx_power; + u8 override_primary_lut; + u8 override_secondary_lut; + + u8 bt4_antenna_isolation; + u8 bt4_antenna_isolation_thr; + u8 bt4_tx_tx_delta_freq_thr; + u8 bt4_tx_rx_max_freq0; + + __le32 bt_prio_boost[BT_COEX_BOOST_SIZE]; + __le32 wifi_tx_prio_boost; + __le32 wifi_rx_prio_boost; __le32 kill_ack_msk; __le32 kill_cts_msk; - u8 bt3_prio_sample_time; - u8 bt3_timer_t2_value; - __le16 bt4_reaction_time; - __le32 decision_lut[BT_COEX_LUT_SIZE]; - u8 bt_reduced_tx_power; - u8 reserved; - __le16 valid_bit_msk; - __le32 bt_prio_boost; - u8 reserved2; - u8 wifi_tx_prio_boost; - __le16 wifi_rx_prio_boost; -} __packed; /* BT_COEX_CMD_API_S_VER_3 */ + + __le32 decision_lut[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE]; + __le32 bt4_multiprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE]; + __le32 bt4_corun_lut20[BT_COEX_CORUN_LUT_SIZE]; + __le32 bt4_corun_lut40[BT_COEX_CORUN_LUT_SIZE]; + + __le32 valid_bit_msk; +} __packed; /* BT_COEX_CMD_API_S_VER_5 */ + +/** + * struct iwl_bt_coex_ci_cmd - bt coex channel inhibition command + * @bt_primary_ci: + * @bt_secondary_ci: + * @co_run_bw_primary: + * @co_run_bw_secondary: + * @primary_ch_phy_id: + * @secondary_ch_phy_id: + * + * Used for BT_COEX_CI command + */ +struct iwl_bt_coex_ci_cmd { + __le64 bt_primary_ci; + __le64 bt_secondary_ci; + + u8 co_run_bw_primary; + u8 co_run_bw_secondary; + u8 primary_ch_phy_id; + u8 secondary_ch_phy_id; +} __packed; /* BT_CI_MSG_API_S_VER_1 */ #define BT_MBOX(n_dw, _msg, _pos, _nbits) \ BT_MBOX##n_dw##_##_msg##_POS = (_pos), \ @@ -244,24 +283,40 @@ enum iwl_bt_mxbox_dw3 { ((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\ >> BT_MBOX##_num##_##_field##_POS) +enum iwl_bt_activity_grading { + BT_OFF = 0, + BT_ON_NO_CONNECTION = 1, + BT_LOW_TRAFFIC = 2, + BT_HIGH_TRAFFIC = 3, +}; /* BT_COEX_BT_ACTIVITY_GRADING_API_E_VER_1 */ + /** * struct iwl_bt_coex_profile_notif - notification about BT coex * @mbox_msg: message from BT to WiFi - * @:bt_status: 0 - off, 1 - on - * @:bt_open_conn: number of BT connections open - * @:bt_traffic_load: load of BT traffic - * @:bt_agg_traffic_load: aggregated load of BT traffic - * @:bt_ci_compliance: 0 - no CI compliance, 1 - CI compliant + * @msg_idx: the index of the message + * @bt_status: 0 - off, 1 - on + * @bt_open_conn: number of BT connections open + * @bt_traffic_load: load of BT traffic + * @bt_agg_traffic_load: aggregated load of BT traffic + * @bt_ci_compliance: 0 - no CI compliance, 1 - CI compliant + * @primary_ch_lut: LUT used for primary channel + * @secondary_ch_lut: LUT used for secondary channel + * @bt_activity_grading: the activity of BT enum %iwl_bt_activity_grading */ struct iwl_bt_coex_profile_notif { __le32 mbox_msg[4]; + __le32 msg_idx; u8 bt_status; u8 bt_open_conn; u8 bt_traffic_load; u8 bt_agg_traffic_load; u8 bt_ci_compliance; u8 reserved[3]; -} __packed; /* BT_COEX_PROFILE_NTFY_API_S_VER_2 */ + + __le32 primary_ch_lut; + __le32 secondary_ch_lut; + __le32 bt_activity_grading; +} __packed; /* BT_COEX_PROFILE_NTFY_API_S_VER_3 */ enum iwl_bt_coex_prio_table_event { BT_COEX_PRIO_TBL_EVT_INIT_CALIB1 = 0, @@ -300,20 +355,4 @@ struct iwl_bt_coex_prio_tbl_cmd { u8 prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX]; } __packed; -enum iwl_bt_coex_env_action { - BT_COEX_ENV_CLOSE = 0, - BT_COEX_ENV_OPEN = 1, -}; /* BT_COEX_PROT_ENV_ACTION_API_E_VER_1 */ - -/** - * struct iwl_bt_coex_prot_env_cmd - BT Protection Envelope - * @action: enum %iwl_bt_coex_env_action - * @type: enum %iwl_bt_coex_prio_table_event - */ -struct iwl_bt_coex_prot_env_cmd { - u8 action; /* 0 = closed, 1 = open */ - u8 type; /* 0 .. 15 */ - u8 reserved[2]; -} __packed; - #endif /* __fw_api_bt_coex_h__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h index 51e015d1dfb..13696fe419b 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -75,13 +75,15 @@ enum iwl_d3_wakeup_flags { * struct iwl_d3_manager_config - D3 manager configuration command * @min_sleep_time: minimum sleep time (in usec) * @wakeup_flags: wakeup flags, see &enum iwl_d3_wakeup_flags + * @wakeup_host_timer: force wakeup after this many seconds * * The structure is used for the D3_CONFIG_CMD command. */ struct iwl_d3_manager_config { __le32 min_sleep_time; __le32 wakeup_flags; -} __packed; /* D3_MANAGER_CONFIG_CMD_S_VER_3 */ + __le32 wakeup_host_timer; +} __packed; /* D3_MANAGER_CONFIG_CMD_S_VER_4 */ /* TODO: OFFLOADS_QUERY_API_S_VER_1 */ @@ -96,34 +98,105 @@ enum iwl_proto_offloads { IWL_D3_PROTO_OFFLOAD_NS = BIT(1), }; -#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS 2 +#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1 2 +#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2 6 +#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L 12 +#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S 4 +#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX 12 + +#define IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L 4 +#define IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S 2 /** - * struct iwl_proto_offload_cmd - ARP/NS offload configuration + * struct iwl_proto_offload_cmd_common - ARP/NS offload common part * @enabled: enable flags * @remote_ipv4_addr: remote address to answer to (or zero if all) * @host_ipv4_addr: our IPv4 address to respond to queries for * @arp_mac_addr: our MAC address for ARP responses - * @remote_ipv6_addr: remote address to answer to (or zero if all) - * @solicited_node_ipv6_addr: broken -- solicited node address exists - * for each target address - * @target_ipv6_addr: our target addresses - * @ndp_mac_addr: neighbor soliciation response MAC address + * @reserved: unused */ -struct iwl_proto_offload_cmd { +struct iwl_proto_offload_cmd_common { __le32 enabled; __be32 remote_ipv4_addr; __be32 host_ipv4_addr; u8 arp_mac_addr[ETH_ALEN]; - __le16 reserved1; + __le16 reserved; +} __packed; +/** + * struct iwl_proto_offload_cmd_v1 - ARP/NS offload configuration + * @common: common/IPv4 configuration + * @remote_ipv6_addr: remote address to answer to (or zero if all) + * @solicited_node_ipv6_addr: broken -- solicited node address exists + * for each target address + * @target_ipv6_addr: our target addresses + * @ndp_mac_addr: neighbor soliciation response MAC address + */ +struct iwl_proto_offload_cmd_v1 { + struct iwl_proto_offload_cmd_common common; u8 remote_ipv6_addr[16]; u8 solicited_node_ipv6_addr[16]; - u8 target_ipv6_addr[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS][16]; + u8 target_ipv6_addr[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1][16]; u8 ndp_mac_addr[ETH_ALEN]; __le16 reserved2; } __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_1 */ +/** + * struct iwl_proto_offload_cmd_v2 - ARP/NS offload configuration + * @common: common/IPv4 configuration + * @remote_ipv6_addr: remote address to answer to (or zero if all) + * @solicited_node_ipv6_addr: broken -- solicited node address exists + * for each target address + * @target_ipv6_addr: our target addresses + * @ndp_mac_addr: neighbor soliciation response MAC address + */ +struct iwl_proto_offload_cmd_v2 { + struct iwl_proto_offload_cmd_common common; + u8 remote_ipv6_addr[16]; + u8 solicited_node_ipv6_addr[16]; + u8 target_ipv6_addr[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2][16]; + u8 ndp_mac_addr[ETH_ALEN]; + u8 numValidIPv6Addresses; + u8 reserved2[3]; +} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_2 */ + +struct iwl_ns_config { + struct in6_addr source_ipv6_addr; + struct in6_addr dest_ipv6_addr; + u8 target_mac_addr[ETH_ALEN]; + __le16 reserved; +} __packed; /* NS_OFFLOAD_CONFIG */ + +struct iwl_targ_addr { + struct in6_addr addr; + __le32 config_num; +} __packed; /* TARGET_IPV6_ADDRESS */ + +/** + * struct iwl_proto_offload_cmd_v3_small - ARP/NS offload configuration + * @common: common/IPv4 configuration + * @target_ipv6_addr: target IPv6 addresses + * @ns_config: NS offload configurations + */ +struct iwl_proto_offload_cmd_v3_small { + struct iwl_proto_offload_cmd_common common; + __le32 num_valid_ipv6_addrs; + struct iwl_targ_addr targ_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S]; + struct iwl_ns_config ns_config[IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S]; +} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_3 */ + +/** + * struct iwl_proto_offload_cmd_v3_large - ARP/NS offload configuration + * @common: common/IPv4 configuration + * @target_ipv6_addr: target IPv6 addresses + * @ns_config: NS offload configurations + */ +struct iwl_proto_offload_cmd_v3_large { + struct iwl_proto_offload_cmd_common common; + __le32 num_valid_ipv6_addrs; + struct iwl_targ_addr targ_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L]; + struct iwl_ns_config ns_config[IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L]; +} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_3 */ /* * WOWLAN_PATTERNS @@ -158,11 +231,15 @@ enum iwl_wowlan_wakeup_filters { IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT = BIT(8), IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS = BIT(9), IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE = BIT(10), - /* BIT(11) reserved */ + IWL_WOWLAN_WAKEUP_REMOTE_TCP_EXTERNAL = BIT(11), IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET = BIT(12), + IWL_WOWLAN_WAKEUP_IOAC_MAGIC_PACKET = BIT(13), + IWL_WOWLAN_WAKEUP_HOST_TIMER = BIT(14), + IWL_WOWLAN_WAKEUP_RX_FRAME = BIT(15), + IWL_WOWLAN_WAKEUP_BCN_FILTERING = BIT(16), }; /* WOWLAN_WAKEUP_FILTER_API_E_VER_4 */ -struct iwl_wowlan_config_cmd { +struct iwl_wowlan_config_cmd_v2 { __le32 wakeup_filter; __le16 non_qos_seq; __le16 qos_seq[8]; @@ -170,6 +247,12 @@ struct iwl_wowlan_config_cmd { u8 is_11n_connection; } __packed; /* WOWLAN_CONFIG_API_S_VER_2 */ +struct iwl_wowlan_config_cmd_v3 { + struct iwl_wowlan_config_cmd_v2 common; + u8 offloading_tid; + u8 reserved[3]; +} __packed; /* WOWLAN_CONFIG_API_S_VER_3 */ + /* * WOWLAN_TSC_RSC_PARAMS */ @@ -262,20 +345,28 @@ enum iwl_wowlan_wakeup_reason { IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET = BIT(12), }; /* WOWLAN_WAKE_UP_REASON_API_E_VER_2 */ +struct iwl_wowlan_gtk_status { + u8 key_index; + u8 reserved[3]; + u8 decrypt_key[16]; + u8 tkip_mic_key[8]; + struct iwl_wowlan_rsc_tsc_params_cmd rsc; +} __packed; + struct iwl_wowlan_status { + struct iwl_wowlan_gtk_status gtk; __le64 replay_ctr; __le16 pattern_number; __le16 non_qos_seq_ctr; __le16 qos_seq_ctr[8]; __le32 wakeup_reasons; - __le32 rekey_status; __le32 num_of_gtk_rekeys; __le32 transmitted_ndps; __le32 received_beacons; __le32 wake_packet_length; __le32 wake_packet_bufsize; u8 wake_packet[]; /* can be truncated from _length to _bufsize */ -} __packed; /* WOWLAN_STATUSES_API_S_VER_4 */ +} __packed; /* WOWLAN_STATUSES_API_S_VER_6 */ #define IWL_WOWLAN_TCP_MAX_PACKET_LEN 64 #define IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN 128 diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h index d68640ea41d..c405cda1025 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -71,7 +71,13 @@ #define MAC_INDEX_MIN_DRIVER 0 #define NUM_MAC_INDEX_DRIVER MAC_INDEX_AUX -#define AC_NUM 4 /* Number of access categories */ +enum iwl_ac { + AC_BK, + AC_BE, + AC_VI, + AC_VO, + AC_NUM, +}; /** * enum iwl_mac_protection_flags - MAC context flags @@ -164,12 +170,14 @@ struct iwl_mac_data_ap { * @beacon_tsf: beacon transmit time in TSF * @bi: beacon interval in TU * @bi_reciprocal: 2^32 / bi + * @beacon_template: beacon template ID */ struct iwl_mac_data_ibss { __le32 beacon_time; __le64 beacon_tsf; __le32 bi; __le32 bi_reciprocal; + __le32 beacon_template; } __packed; /* IBSS_MAC_DATA_API_S_VER_1 */ /** @@ -366,4 +374,13 @@ static inline u32 iwl_mvm_reciprocal(u32 v) return 0xFFFFFFFF / v; } +#define IWL_NONQOS_SEQ_GET 0x1 +#define IWL_NONQOS_SEQ_SET 0x2 +struct iwl_nonqos_seq_query_cmd { + __le32 get_set_flag; + __le32 mac_id_n_color; + __le16 value; + __le16 reserved; +} __packed; /* NON_QOS_TX_COUNTER_GET_SET_API_S_VER_1 */ + #endif /* __fw_api_mac_h__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h index 81fe45f46be..cbbcd8e284e 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -66,6 +66,11 @@ /* Power Management Commands, Responses, Notifications */ +/* Radio LP RX Energy Threshold measured in dBm */ +#define POWER_LPRX_RSSI_THRESHOLD 75 +#define POWER_LPRX_RSSI_THRESHOLD_MAX 94 +#define POWER_LPRX_RSSI_THRESHOLD_MIN 30 + /** * enum iwl_scan_flags - masks for power table command flags * @POWER_FLAGS_POWER_SAVE_ENA_MSK: '1' Allow to save power by turning off @@ -74,21 +79,31 @@ * '1' Driver enables PM (use rest of parameters) * @POWER_FLAGS_SKIP_OVER_DTIM_MSK: '0' PM have to walk up every DTIM, * '1' PM could sleep over DTIM till listen Interval. + * @POWER_FLAGS_SNOOZE_ENA_MSK: Enable snoozing only if uAPSD is enabled and all + * access categories are both delivery and trigger enabled. + * @POWER_FLAGS_BT_SCO_ENA: Enable BT SCO coex only if uAPSD and + * PBW Snoozing enabled * @POWER_FLAGS_ADVANCE_PM_ENA_MSK: Advanced PM (uAPSD) enable mask * @POWER_FLAGS_LPRX_ENA_MSK: Low Power RX enable. + * @POWER_FLAGS_AP_UAPSD_MISBEHAVING_ENA_MSK: AP/GO's uAPSD misbehaving + * detection enablement */ enum iwl_power_flags { POWER_FLAGS_POWER_SAVE_ENA_MSK = BIT(0), POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK = BIT(1), POWER_FLAGS_SKIP_OVER_DTIM_MSK = BIT(2), + POWER_FLAGS_SNOOZE_ENA_MSK = BIT(5), + POWER_FLAGS_BT_SCO_ENA = BIT(8), POWER_FLAGS_ADVANCE_PM_ENA_MSK = BIT(9), POWER_FLAGS_LPRX_ENA_MSK = BIT(11), + POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK = BIT(12), }; #define IWL_POWER_VEC_SIZE 5 /** - * struct iwl_powertable_cmd - Power Table Command + * struct iwl_powertable_cmd - legacy power command. Beside old API support this + * is used also with a new power API for device wide power settings. * POWER_TABLE_CMD = 0x77 (command, has simple generic response) * * @flags: Power table command flags from POWER_FLAGS_* @@ -101,20 +116,250 @@ enum iwl_power_flags { * @tx_data_timeout: Minimum time (usec) from last Tx packet for AM to * PSM transition - legacy PM * @sleep_interval: not in use - * @keep_alive_beacons: not in use + * @skip_dtim_periods: Number of DTIM periods to skip if Skip over DTIM flag + * is set. For example, if it is required to skip over + * one DTIM, this value need to be set to 2 (DTIM periods). * @lprx_rssi_threshold: Signal strength up to which LP RX can be enabled. * Default: 80dbm */ struct iwl_powertable_cmd { - /* PM_POWER_TABLE_CMD_API_S_VER_5 */ + /* PM_POWER_TABLE_CMD_API_S_VER_6 */ __le16 flags; u8 keep_alive_seconds; u8 debug_flags; __le32 rx_data_timeout; __le32 tx_data_timeout; __le32 sleep_interval[IWL_POWER_VEC_SIZE]; - __le32 keep_alive_beacons; + __le32 skip_dtim_periods; __le32 lprx_rssi_threshold; } __packed; +/** + * enum iwl_device_power_flags - masks for device power command flags + * @DEVIC_POWER_FLAGS_POWER_SAVE_ENA_MSK: '1' Allow to save power by turning off + * receiver and transmitter. '0' - does not allow. This flag should be + * always set to '1' unless one need to disable actual power down for debug + * purposes. + * @DEVICE_POWER_FLAGS_CAM_MSK: '1' CAM (Continuous Active Mode) is set, meaning + * that power management is disabled. '0' Power management is enabled, one + * of power schemes is applied. +*/ +enum iwl_device_power_flags { + DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK = BIT(0), + DEVICE_POWER_FLAGS_CAM_MSK = BIT(13), +}; + +/** + * struct iwl_device_power_cmd - device wide power command. + * DEVICE_POWER_CMD = 0x77 (command, has simple generic response) + * + * @flags: Power table command flags from DEVICE_POWER_FLAGS_* + */ +struct iwl_device_power_cmd { + /* PM_POWER_TABLE_CMD_API_S_VER_6 */ + __le16 flags; + __le16 reserved; +} __packed; + +/** + * struct iwl_mac_power_cmd - New power command containing uAPSD support + * MAC_PM_POWER_TABLE = 0xA9 (command, has simple generic response) + * @id_and_color: MAC contex identifier + * @flags: Power table command flags from POWER_FLAGS_* + * @keep_alive_seconds: Keep alive period in seconds. Default - 25 sec. + * Minimum allowed:- 3 * DTIM. Keep alive period must be + * set regardless of power scheme or current power state. + * FW use this value also when PM is disabled. + * @rx_data_timeout: Minimum time (usec) from last Rx packet for AM to + * PSM transition - legacy PM + * @tx_data_timeout: Minimum time (usec) from last Tx packet for AM to + * PSM transition - legacy PM + * @sleep_interval: not in use + * @skip_dtim_periods: Number of DTIM periods to skip if Skip over DTIM flag + * is set. For example, if it is required to skip over + * one DTIM, this value need to be set to 2 (DTIM periods). + * @rx_data_timeout_uapsd: Minimum time (usec) from last Rx packet for AM to + * PSM transition - uAPSD + * @tx_data_timeout_uapsd: Minimum time (usec) from last Tx packet for AM to + * PSM transition - uAPSD + * @lprx_rssi_threshold: Signal strength up to which LP RX can be enabled. + * Default: 80dbm + * @num_skip_dtim: Number of DTIMs to skip if Skip over DTIM flag is set + * @snooze_interval: Maximum time between attempts to retrieve buffered data + * from the AP [msec] + * @snooze_window: A window of time in which PBW snoozing insures that all + * packets received. It is also the minimum time from last + * received unicast RX packet, before client stops snoozing + * for data. [msec] + * @snooze_step: TBD + * @qndp_tid: TID client shall use for uAPSD QNDP triggers + * @uapsd_ac_flags: Set trigger-enabled and delivery-enabled indication for + * each corresponding AC. + * Use IEEE80211_WMM_IE_STA_QOSINFO_AC* for correct values. + * @uapsd_max_sp: Use IEEE80211_WMM_IE_STA_QOSINFO_SP_* for correct + * values. + * @heavy_tx_thld_packets: TX threshold measured in number of packets + * @heavy_rx_thld_packets: RX threshold measured in number of packets + * @heavy_tx_thld_percentage: TX threshold measured in load's percentage + * @heavy_rx_thld_percentage: RX threshold measured in load's percentage + * @limited_ps_threshold: +*/ +struct iwl_mac_power_cmd { + /* CONTEXT_DESC_API_T_VER_1 */ + __le32 id_and_color; + + /* CLIENT_PM_POWER_TABLE_S_VER_1 */ + __le16 flags; + __le16 keep_alive_seconds; + __le32 rx_data_timeout; + __le32 tx_data_timeout; + __le32 rx_data_timeout_uapsd; + __le32 tx_data_timeout_uapsd; + u8 lprx_rssi_threshold; + u8 skip_dtim_periods; + __le16 snooze_interval; + __le16 snooze_window; + u8 snooze_step; + u8 qndp_tid; + u8 uapsd_ac_flags; + u8 uapsd_max_sp; + u8 heavy_tx_thld_packets; + u8 heavy_rx_thld_packets; + u8 heavy_tx_thld_percentage; + u8 heavy_rx_thld_percentage; + u8 limited_ps_threshold; + u8 reserved; +} __packed; + +/* + * struct iwl_uapsd_misbehaving_ap_notif - FW sends this notification when + * associated AP is identified as improperly implementing uAPSD protocol. + * PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION = 0x78 + * @sta_id: index of station in uCode's station table - associated AP ID in + * this context. + */ +struct iwl_uapsd_misbehaving_ap_notif { + __le32 sta_id; + u8 mac_id; + u8 reserved[3]; +} __packed; + +/** + * struct iwl_beacon_filter_cmd + * REPLY_BEACON_FILTERING_CMD = 0xd2 (command) + * @id_and_color: MAC contex identifier + * @bf_energy_delta: Used for RSSI filtering, if in 'normal' state. Send beacon + * to driver if delta in Energy values calculated for this and last + * passed beacon is greater than this threshold. Zero value means that + * the Energy change is ignored for beacon filtering, and beacon will + * not be forced to be sent to driver regardless of this delta. Typical + * energy delta 5dB. + * @bf_roaming_energy_delta: Used for RSSI filtering, if in 'roaming' state. + * Send beacon to driver if delta in Energy values calculated for this + * and last passed beacon is greater than this threshold. Zero value + * means that the Energy change is ignored for beacon filtering while in + * Roaming state, typical energy delta 1dB. + * @bf_roaming_state: Used for RSSI filtering. If absolute Energy values + * calculated for current beacon is less than the threshold, use + * Roaming Energy Delta Threshold, otherwise use normal Energy Delta + * Threshold. Typical energy threshold is -72dBm. + * @bf_temp_threshold: This threshold determines the type of temperature + * filtering (Slow or Fast) that is selected (Units are in Celsuis): + * If the current temperature is above this threshold - Fast filter + * will be used, If the current temperature is below this threshold - + * Slow filter will be used. + * @bf_temp_fast_filter: Send Beacon to driver if delta in temperature values + * calculated for this and the last passed beacon is greater than this + * threshold. Zero value means that the temperature change is ignored for + * beacon filtering; beacons will not be forced to be sent to driver + * regardless of whether its temerature has been changed. + * @bf_temp_slow_filter: Send Beacon to driver if delta in temperature values + * calculated for this and the last passed beacon is greater than this + * threshold. Zero value means that the temperature change is ignored for + * beacon filtering; beacons will not be forced to be sent to driver + * regardless of whether its temerature has been changed. + * @bf_enable_beacon_filter: 1, beacon filtering is enabled; 0, disabled. + * @bf_filter_escape_timer: Send beacons to to driver if no beacons were passed + * for a specific period of time. Units: Beacons. + * @ba_escape_timer: Fully receive and parse beacon if no beacons were passed + * for a longer period of time then this escape-timeout. Units: Beacons. + * @ba_enable_beacon_abort: 1, beacon abort is enabled; 0, disabled. + */ +struct iwl_beacon_filter_cmd { + __le32 bf_energy_delta; + __le32 bf_roaming_energy_delta; + __le32 bf_roaming_state; + __le32 bf_temp_threshold; + __le32 bf_temp_fast_filter; + __le32 bf_temp_slow_filter; + __le32 bf_enable_beacon_filter; + __le32 bf_debug_flag; + __le32 bf_escape_timer; + __le32 ba_escape_timer; + __le32 ba_enable_beacon_abort; +} __packed; + +/* Beacon filtering and beacon abort */ +#define IWL_BF_ENERGY_DELTA_DEFAULT 5 +#define IWL_BF_ENERGY_DELTA_D0I3 20 +#define IWL_BF_ENERGY_DELTA_MAX 255 +#define IWL_BF_ENERGY_DELTA_MIN 0 + +#define IWL_BF_ROAMING_ENERGY_DELTA_DEFAULT 1 +#define IWL_BF_ROAMING_ENERGY_DELTA_D0I3 20 +#define IWL_BF_ROAMING_ENERGY_DELTA_MAX 255 +#define IWL_BF_ROAMING_ENERGY_DELTA_MIN 0 + +#define IWL_BF_ROAMING_STATE_DEFAULT 72 +#define IWL_BF_ROAMING_STATE_D0I3 72 +#define IWL_BF_ROAMING_STATE_MAX 255 +#define IWL_BF_ROAMING_STATE_MIN 0 + +#define IWL_BF_TEMP_THRESHOLD_DEFAULT 112 +#define IWL_BF_TEMP_THRESHOLD_D0I3 112 +#define IWL_BF_TEMP_THRESHOLD_MAX 255 +#define IWL_BF_TEMP_THRESHOLD_MIN 0 + +#define IWL_BF_TEMP_FAST_FILTER_DEFAULT 1 +#define IWL_BF_TEMP_FAST_FILTER_D0I3 1 +#define IWL_BF_TEMP_FAST_FILTER_MAX 255 +#define IWL_BF_TEMP_FAST_FILTER_MIN 0 + +#define IWL_BF_TEMP_SLOW_FILTER_DEFAULT 5 +#define IWL_BF_TEMP_SLOW_FILTER_D0I3 5 +#define IWL_BF_TEMP_SLOW_FILTER_MAX 255 +#define IWL_BF_TEMP_SLOW_FILTER_MIN 0 + +#define IWL_BF_ENABLE_BEACON_FILTER_DEFAULT 1 + +#define IWL_BF_DEBUG_FLAG_DEFAULT 0 +#define IWL_BF_DEBUG_FLAG_D0I3 0 + +#define IWL_BF_ESCAPE_TIMER_DEFAULT 50 +#define IWL_BF_ESCAPE_TIMER_D0I3 1024 +#define IWL_BF_ESCAPE_TIMER_MAX 1024 +#define IWL_BF_ESCAPE_TIMER_MIN 0 + +#define IWL_BA_ESCAPE_TIMER_DEFAULT 6 +#define IWL_BA_ESCAPE_TIMER_D0I3 6 +#define IWL_BA_ESCAPE_TIMER_D3 9 +#define IWL_BA_ESCAPE_TIMER_MAX 1024 +#define IWL_BA_ESCAPE_TIMER_MIN 0 + +#define IWL_BA_ENABLE_BEACON_ABORT_DEFAULT 1 + +#define IWL_BF_CMD_CONFIG(mode) \ + .bf_energy_delta = cpu_to_le32(IWL_BF_ENERGY_DELTA ## mode), \ + .bf_roaming_energy_delta = \ + cpu_to_le32(IWL_BF_ROAMING_ENERGY_DELTA ## mode), \ + .bf_roaming_state = cpu_to_le32(IWL_BF_ROAMING_STATE ## mode), \ + .bf_temp_threshold = cpu_to_le32(IWL_BF_TEMP_THRESHOLD ## mode), \ + .bf_temp_fast_filter = cpu_to_le32(IWL_BF_TEMP_FAST_FILTER ## mode), \ + .bf_temp_slow_filter = cpu_to_le32(IWL_BF_TEMP_SLOW_FILTER ## mode), \ + .bf_debug_flag = cpu_to_le32(IWL_BF_DEBUG_FLAG ## mode), \ + .bf_escape_timer = cpu_to_le32(IWL_BF_ESCAPE_TIMER ## mode), \ + .ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER ## mode) + +#define IWL_BF_CMD_CONFIG_DEFAULTS IWL_BF_CMD_CONFIG(_DEFAULT) +#define IWL_BF_CMD_CONFIG_D0I3 IWL_BF_CMD_CONFIG(_D0I3) #endif diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h index fdd33bc0a59..8bb5b94bf96 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -68,6 +68,7 @@ /* * These serve as indexes into * struct iwl_rate_info fw_rate_idx_to_plcp[IWL_RATE_COUNT]; + * TODO: avoid overlap between legacy and HT rates */ enum { IWL_RATE_1M_INDEX = 0, @@ -78,18 +79,31 @@ enum { IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX, IWL_RATE_6M_INDEX, IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX, + IWL_RATE_MCS_0_INDEX = IWL_RATE_6M_INDEX, + IWL_FIRST_HT_RATE = IWL_RATE_MCS_0_INDEX, + IWL_FIRST_VHT_RATE = IWL_RATE_MCS_0_INDEX, IWL_RATE_9M_INDEX, IWL_RATE_12M_INDEX, + IWL_RATE_MCS_1_INDEX = IWL_RATE_12M_INDEX, IWL_RATE_18M_INDEX, + IWL_RATE_MCS_2_INDEX = IWL_RATE_18M_INDEX, IWL_RATE_24M_INDEX, + IWL_RATE_MCS_3_INDEX = IWL_RATE_24M_INDEX, IWL_RATE_36M_INDEX, + IWL_RATE_MCS_4_INDEX = IWL_RATE_36M_INDEX, IWL_RATE_48M_INDEX, + IWL_RATE_MCS_5_INDEX = IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX, + IWL_RATE_MCS_6_INDEX = IWL_RATE_54M_INDEX, IWL_LAST_NON_HT_RATE = IWL_RATE_54M_INDEX, IWL_RATE_60M_INDEX, - IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX, + IWL_RATE_MCS_7_INDEX = IWL_RATE_60M_INDEX, + IWL_LAST_HT_RATE = IWL_RATE_MCS_7_INDEX, + IWL_RATE_MCS_8_INDEX, + IWL_RATE_MCS_9_INDEX, + IWL_LAST_VHT_RATE = IWL_RATE_MCS_9_INDEX, IWL_RATE_COUNT_LEGACY = IWL_LAST_NON_HT_RATE + 1, - IWL_RATE_COUNT, + IWL_RATE_COUNT = IWL_LAST_VHT_RATE + 1, }; #define IWL_RATE_BIT_MSK(r) BIT(IWL_RATE_##r##M_INDEX) @@ -108,6 +122,7 @@ enum { IWL_RATE_2M_PLCP = 20, IWL_RATE_5M_PLCP = 55, IWL_RATE_11M_PLCP = 110, + IWL_RATE_INVM_PLCP = -1, }; /* @@ -164,6 +179,8 @@ enum { * which is the duplicate 20 MHz MCS (bit 5 set, all others zero.) */ #define RATE_HT_MCS_RATE_CODE_MSK 0x7 +#define RATE_HT_MCS_NSS_POS 3 +#define RATE_HT_MCS_NSS_MSK (3 << RATE_HT_MCS_NSS_POS) /* Bit 10: (1) Use Green Field preamble */ #define RATE_HT_MCS_GF_POS 10 @@ -240,7 +257,8 @@ enum { /* Bit 17-18: (0) SS, (1) SS*2 */ #define RATE_MCS_STBC_POS 17 -#define RATE_MCS_STBC_MSK (1 << RATE_MCS_STBC_POS) +#define RATE_MCS_HT_STBC_MSK (3 << RATE_MCS_STBC_POS) +#define RATE_MCS_VHT_STBC_MSK (1 << RATE_MCS_STBC_POS) /* Bit 19: (0) Beamforming is off, (1) Beamforming is on */ #define RATE_MCS_BF_POS 19 @@ -264,8 +282,31 @@ enum { /* # entries in rate scale table to support Tx retries */ #define LQ_MAX_RETRY_NUM 16 -/* Link quality command flags, only this one is available */ -#define LQ_FLAG_SET_STA_TLC_RTS_MSK BIT(0) +/* Link quality command flags bit fields */ + +/* Bit 0: (0) Don't use RTS (1) Use RTS */ +#define LQ_FLAG_USE_RTS_POS 0 +#define LQ_FLAG_USE_RTS_MSK (1 << LQ_FLAG_USE_RTS_POS) + +/* Bit 1-3: LQ command color. Used to match responses to LQ commands */ +#define LQ_FLAG_COLOR_POS 1 +#define LQ_FLAG_COLOR_MSK (7 << LQ_FLAG_COLOR_POS) + +/* Bit 4-5: Tx RTS BW Signalling + * (0) No RTS BW signalling + * (1) Static BW signalling + * (2) Dynamic BW signalling + */ +#define LQ_FLAG_RTS_BW_SIG_POS 4 +#define LQ_FLAG_RTS_BW_SIG_NONE (0 << LQ_FLAG_RTS_BW_SIG_POS) +#define LQ_FLAG_RTS_BW_SIG_STATIC (1 << LQ_FLAG_RTS_BW_SIG_POS) +#define LQ_FLAG_RTS_BW_SIG_DYNAMIC (2 << LQ_FLAG_RTS_BW_SIG_POS) + +/* Bit 6: (0) No dynamic BW selection (1) Allow dynamic BW selection + * Dyanmic BW selection allows Tx with narrower BW then requested in rates + */ +#define LQ_FLAG_DYNAMIC_BW_POS 6 +#define LQ_FLAG_DYNAMIC_BW_MSK (1 << LQ_FLAG_DYNAMIC_BW_POS) /** * struct iwl_lq_cmd - link quality command @@ -293,7 +334,7 @@ enum { */ struct iwl_lq_cmd { u8 sta_id; - u8 reserved1; + u8 reduced_tpc; u16 control; /* LINK_QUAL_GENERAL_PARAMS_API_S_VER_1 */ u8 flags; diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h index b60d1415172..6959fda3fe0 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -69,7 +69,6 @@ /* Scan Commands, Responses, Notifications */ /* Masks for iwl_scan_channel.type flags */ -#define SCAN_CHANNEL_TYPE_PASSIVE 0 #define SCAN_CHANNEL_TYPE_ACTIVE BIT(0) #define SCAN_CHANNEL_NARROW_BAND BIT(22) @@ -138,6 +137,8 @@ struct iwl_ssid_ie { *@SCAN_FLAGS_DELAYED_SCAN_LOWBAND: *@SCAN_FLAGS_DELAYED_SCAN_HIGHBAND: *@SCAN_FLAGS_FRAGMENTED_SCAN: + *@SCAN_FLAGS_PASSIVE2ACTIVE: use active scan on channels that was active + * in the past hour, even if they are marked as passive. */ enum iwl_scan_flags { SCAN_FLAGS_PERIODIC_SCAN = BIT(0), @@ -145,6 +146,7 @@ enum iwl_scan_flags { SCAN_FLAGS_DELAYED_SCAN_LOWBAND = BIT(2), SCAN_FLAGS_DELAYED_SCAN_HIGHBAND = BIT(3), SCAN_FLAGS_FRAGMENTED_SCAN = BIT(4), + SCAN_FLAGS_PASSIVE2ACTIVE = BIT(5), }; /** @@ -167,8 +169,12 @@ enum iwl_scan_type { SCAN_TYPE_DISCOVERY_FORCED = 6, }; /* SCAN_ACTIVITY_TYPE_E_VER_1 */ -/* Maximal number of channels to scan */ -#define MAX_NUM_SCAN_CHANNELS 0x24 +/** + * Maximal number of channels to scan + * it should be equal to: + * max(IWL_NUM_CHANNELS, IWL_NUM_CHANNELS_FAMILY_8000) + */ +#define MAX_NUM_SCAN_CHANNELS 50 /** * struct iwl_scan_cmd - scan request command @@ -179,11 +185,11 @@ enum iwl_scan_type { * @quiet_time: in msecs, dwell this time for active scan on quiet channels * @quiet_plcp_th: quiet PLCP threshold (channel is quiet if less than * this number of packets were received (typically 1) - * @passive2active: is auto switching from passive to active allowed (0 or 1) + * @passive2active: is auto switching from passive to active during scan allowed * @rxchain_sel_flags: RXON_RX_CHAIN_* - * @max_out_time: in usecs, max out of serving channel time + * @max_out_time: in TUs, max out of serving channel time * @suspend_time: how long to pause scan when returning to service channel: - * bits 0-19: beacon interal in usecs (suspend before executing) + * bits 0-19: beacon interal in TUs (suspend before executing) * bits 20-23: reserved * bits 24-31: number of beacons (suspend between channels) * @rxon_flags: RXON_FLG_* @@ -354,6 +360,7 @@ struct iwl_scan_complete_notif { /* scan offload */ #define IWL_MAX_SCAN_CHANNELS 40 #define IWL_SCAN_MAX_BLACKLIST_LEN 64 +#define IWL_SCAN_SHORT_BLACKLIST_LEN 16 #define IWL_SCAN_MAX_PROFILES 11 #define SCAN_OFFLOAD_PROBE_REQ_SIZE 512 @@ -366,6 +373,12 @@ struct iwl_scan_complete_notif { #define IWL_FULL_SCAN_MULTIPLIER 5 #define IWL_FAST_SCHED_SCAN_ITERATIONS 3 +enum scan_framework_client { + SCAN_CLIENT_SCHED_SCAN = BIT(0), + SCAN_CLIENT_NETDETECT = BIT(1), + SCAN_CLIENT_ASSET_TRACKING = BIT(2), +}; + /** * struct iwl_scan_offload_cmd - SCAN_REQUEST_FIXED_PART_API_S_VER_6 * @scan_flags: see enum iwl_scan_flags @@ -374,8 +387,8 @@ struct iwl_scan_complete_notif { * @quiet_plcp_th: quiet channel num of packets threshold * @good_CRC_th: passive to active promotion threshold * @rx_chain: RXON rx chain. - * @max_out_time: max uSec to be out of assoceated channel - * @suspend_time: pause scan this long when returning to service channel + * @max_out_time: max TUs to be out of assoceated channel + * @suspend_time: pause scan this TUs when returning to service channel * @flags: RXON flags * @filter_flags: RXONfilter * @tx_cmd: tx command for active scan; for 2GHz and for 5GHz. @@ -447,11 +460,12 @@ struct iwl_scan_offload_cfg { * iwl_scan_offload_blacklist - SCAN_OFFLOAD_BLACKLIST_S * @ssid: MAC address to filter out * @reported_rssi: AP rssi reported to the host + * @client_bitmap: clients ignore this entry - enum scan_framework_client */ struct iwl_scan_offload_blacklist { u8 ssid[ETH_ALEN]; u8 reported_rssi; - u8 reserved; + u8 client_bitmap; } __packed; enum iwl_scan_offload_network_type { @@ -473,6 +487,7 @@ enum iwl_scan_offload_band_selection { * @aut_alg: authentication olgorithm to match - bitmap * @network_type: enum iwl_scan_offload_network_type * @band_selection: enum iwl_scan_offload_band_selection + * @client_bitmap: clients waiting for match - enum scan_framework_client */ struct iwl_scan_offload_profile { u8 ssid_index; @@ -480,7 +495,8 @@ struct iwl_scan_offload_profile { u8 auth_alg; u8 network_type; u8 band_selection; - u8 reserved[3]; + u8 client_bitmap; + u8 reserved[2]; } __packed; /** @@ -489,12 +505,19 @@ struct iwl_scan_offload_profile { * @profiles: profiles to search for match * @blacklist_len: length of blacklist * @num_profiles: num of profiles in the list + * @match_notify: clients waiting for match found notification + * @pass_match: clients waiting for the results + * @active_clients: active clients bitmap - enum scan_framework_client + * @any_beacon_notify: clients waiting for match notification without match */ struct iwl_scan_offload_profile_cfg { - struct iwl_scan_offload_blacklist blacklist[IWL_SCAN_MAX_BLACKLIST_LEN]; struct iwl_scan_offload_profile profiles[IWL_SCAN_MAX_PROFILES]; u8 blacklist_len; u8 num_profiles; + u8 match_notify; + u8 pass_match; + u8 active_clients; + u8 any_beacon_notify; u8 reserved[2]; } __packed; @@ -513,16 +536,18 @@ struct iwl_scan_offload_schedule { /* * iwl_scan_offload_flags * - * IWL_SCAN_OFFLOAD_FLAG_FILTER_SSID: filter mode - upload every beacon or match - * ssid list. + * IWL_SCAN_OFFLOAD_FLAG_PASS_ALL: pass all results - no filtering. * IWL_SCAN_OFFLOAD_FLAG_CACHED_CHANNEL: add cached channels to partial scan. - * IWL_SCAN_OFFLOAD_FLAG_ENERGY_SCAN: use energy based scan before partial scan - * on A band. + * IWL_SCAN_OFFLOAD_FLAG_EBS_QUICK_MODE: EBS duration is 100mSec - typical + * beacon period. Finding channel activity in this mode is not guaranteed. + * IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE: EBS duration is 200mSec. + * Assuming beacon period is 100ms finding channel activity is guaranteed. */ enum iwl_scan_offload_flags { - IWL_SCAN_OFFLOAD_FLAG_FILTER_SSID = BIT(0), + IWL_SCAN_OFFLOAD_FLAG_PASS_ALL = BIT(0), IWL_SCAN_OFFLOAD_FLAG_CACHED_CHANNEL = BIT(2), - IWL_SCAN_OFFLOAD_FLAG_ENERGY_SCAN = BIT(3), + IWL_SCAN_OFFLOAD_FLAG_EBS_QUICK_MODE = BIT(5), + IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE = BIT(6), }; /** @@ -545,17 +570,35 @@ enum iwl_scan_offload_compleate_status { IWL_SCAN_OFFLOAD_ABORTED = 2, }; +enum iwl_scan_ebs_status { + IWL_SCAN_EBS_SUCCESS, + IWL_SCAN_EBS_FAILED, + IWL_SCAN_EBS_CHAN_NOT_FOUND, +}; + /** * iwl_scan_offload_complete - SCAN_OFFLOAD_COMPLETE_NTF_API_S_VER_1 * @last_schedule_line: last schedule line executed (fast or regular) * @last_schedule_iteration: last scan iteration executed before scan abort * @status: enum iwl_scan_offload_compleate_status + * @ebs_status: last EBS status, see IWL_SCAN_EBS_* */ struct iwl_scan_offload_complete { u8 last_schedule_line; u8 last_schedule_iteration; u8 status; - u8 reserved; + u8 ebs_status; } __packed; +/** + * iwl_sched_scan_results - SCAN_OFFLOAD_MATCH_FOUND_NTF_API_S_VER_1 + * @ssid_bitmap: SSIDs indexes found in this iteration + * @client_bitmap: clients that are active and wait for this notification + */ +struct iwl_sched_scan_results { + __le16 ssid_bitmap; + u8 client_bitmap; + u8 reserved; +}; + #endif diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h index a30691a8a85..39cebee8016 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -97,9 +97,6 @@ enum iwl_sta_flags { STA_FLG_FLG_ANT_B), STA_FLG_PS = BIT(8), - STA_FLG_INVALID = BIT(9), - STA_FLG_DLP_EN = BIT(10), - STA_FLG_SET_ALL_KEYS = BIT(11), STA_FLG_DRAIN_FLOW = BIT(12), STA_FLG_PAN = BIT(13), STA_FLG_CLASS_AUTH = BIT(14), @@ -138,7 +135,14 @@ enum iwl_sta_flags { /** * enum iwl_sta_key_flag - key flags for the ADD_STA host command - * @STA_KEY_FLG_EN_MSK: mask for encryption algorithm + * @STA_KEY_FLG_NO_ENC: no encryption + * @STA_KEY_FLG_WEP: WEP encryption algorithm + * @STA_KEY_FLG_CCM: CCMP encryption algorithm + * @STA_KEY_FLG_TKIP: TKIP encryption algorithm + * @STA_KEY_FLG_EXT: extended cipher algorithm (depends on the FW support) + * @STA_KEY_FLG_CMAC: CMAC encryption algorithm + * @STA_KEY_FLG_ENC_UNKNOWN: unknown encryption algorithm + * @STA_KEY_FLG_EN_MSK: mask for encryption algorithmi value * @STA_KEY_FLG_WEP_KEY_MAP: wep is either a group key (0 - legacy WEP) or from * station info array (1 - n 1X mode) * @STA_KEY_FLG_KEYID_MSK: the index of the key @@ -152,6 +156,7 @@ enum iwl_sta_key_flag { STA_KEY_FLG_WEP = (1 << 0), STA_KEY_FLG_CCM = (2 << 0), STA_KEY_FLG_TKIP = (3 << 0), + STA_KEY_FLG_EXT = (4 << 0), STA_KEY_FLG_CMAC = (6 << 0), STA_KEY_FLG_ENC_UNKNOWN = (7 << 0), STA_KEY_FLG_EN_MSK = (7 << 0), @@ -194,11 +199,14 @@ enum iwl_sta_modify_flag { * @STA_SLEEP_STATE_AWAKE: * @STA_SLEEP_STATE_PS_POLL: * @STA_SLEEP_STATE_UAPSD: + * @STA_SLEEP_STATE_MOREDATA: set more-data bit on + * (last) released frame */ enum iwl_sta_sleep_flag { - STA_SLEEP_STATE_AWAKE = 0, - STA_SLEEP_STATE_PS_POLL = BIT(0), - STA_SLEEP_STATE_UAPSD = BIT(1), + STA_SLEEP_STATE_AWAKE = 0, + STA_SLEEP_STATE_PS_POLL = BIT(0), + STA_SLEEP_STATE_UAPSD = BIT(1), + STA_SLEEP_STATE_MOREDATA = BIT(2), }; /* STA ID and color bits definitions */ @@ -247,22 +255,19 @@ struct iwl_mvm_keyinfo { } __packed; /** - * struct iwl_mvm_add_sta_cmd - Add / modify a station in the fw's station table + * struct iwl_mvm_add_sta_cmd - Add/modify a station in the fw's sta table. * ( REPLY_ADD_STA = 0x18 ) * @add_modify: 1: modify existing, 0: add new station - * @unicast_tx_key_id: unicast tx key id. Relevant only when unicast key sent - * @multicast_tx_key_id: multicast tx key id. Relevant only when multicast key - * sent + * @awake_acs: + * @tid_disable_tx: is tid BIT(tid) enabled for Tx. Clear BIT(x) to enable + * AMPDU for tid x. Set %STA_MODIFY_TID_DISABLE_TX to change this field. * @mac_id_n_color: the Mac context this station belongs to * @addr[ETH_ALEN]: station's MAC address * @sta_id: index of station in uCode's station table * @modify_mask: STA_MODIFY_*, selects which parameters to modify vs. leave * alone. 1 - modify, 0 - don't change. - * @key: look at %iwl_mvm_keyinfo * @station_flags: look at %iwl_sta_flags * @station_flags_msk: what of %station_flags have changed - * @tid_disable_tx: is tid BIT(tid) enabled for Tx. Clear BIT(x) to enable - * AMPDU for tid x. Set %STA_MODIFY_TID_DISABLE_TX to change this field. * @add_immediate_ba_tid: tid for which to add block-ack support (Rx) * Set %STA_MODIFY_ADD_BA_TID to use this field, and also set * add_immediate_ba_ssn. @@ -288,20 +293,16 @@ struct iwl_mvm_keyinfo { */ struct iwl_mvm_add_sta_cmd { u8 add_modify; - u8 unicast_tx_key_id; - u8 multicast_tx_key_id; - u8 reserved1; + u8 awake_acs; + __le16 tid_disable_tx; __le32 mac_id_n_color; - u8 addr[ETH_ALEN]; + u8 addr[ETH_ALEN]; /* _STA_ID_MODIFY_INFO_API_S_VER_1 */ __le16 reserved2; u8 sta_id; u8 modify_mask; __le16 reserved3; - struct iwl_mvm_keyinfo key; __le32 station_flags; __le32 station_flags_msk; - __le16 tid_disable_tx; - __le16 reserved4; u8 add_immediate_ba_tid; u8 remove_immediate_ba_tid; __le16 add_immediate_ba_ssn; @@ -310,7 +311,31 @@ struct iwl_mvm_add_sta_cmd { __le16 assoc_id; __le16 beamform_flags; __le32 tfd_queue_msk; -} __packed; /* ADD_STA_CMD_API_S_VER_5 */ +} __packed; /* ADD_STA_CMD_API_S_VER_7 */ + +/** + * struct iwl_mvm_add_sta_key_cmd - add/modify sta key + * ( REPLY_ADD_STA_KEY = 0x17 ) + * @sta_id: index of station in uCode's station table + * @key_offset: key offset in key storage + * @key_flags: type %iwl_sta_key_flag + * @key: key material data + * @key2: key material data + * @rx_secur_seq_cnt: RX security sequence counter for the key + * @tkip_rx_tsc_byte2: TSC[2] for key mix ph1 detection + * @tkip_rx_ttak: 10-byte unicast TKIP TTAK for Rx + */ +struct iwl_mvm_add_sta_key_cmd { + u8 sta_id; + u8 key_offset; + __le16 key_flags; + u8 key[16]; + u8 key2[16]; + u8 rx_secur_seq_cnt[16]; + u8 tkip_rx_tsc_byte2; + u8 reserved; + __le16 tkip_rx_ttak[5]; +} __packed; /* ADD_MODIFY_STA_KEY_API_S_VER_1 */ /** * enum iwl_mvm_add_sta_rsp_status - status in the response to ADD_STA command @@ -376,5 +401,15 @@ struct iwl_mvm_wep_key_cmd { struct iwl_mvm_wep_key wep_key[0]; } __packed; /* SEC_CURR_WEP_KEY_CMD_API_S_VER_2 */ +/** + * struct iwl_mvm_eosp_notification - EOSP notification from firmware + * @remain_frame_count: # of frames remaining, non-zero if SP was cut + * short by GO absence + * @sta_id: station ID + */ +struct iwl_mvm_eosp_notification { + __le32 remain_frame_count; + __le32 sta_id; +} __packed; /* UAPSD_EOSP_NTFY_API_S_VER_1 */ #endif /* __fw_api_sta_h__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h index 007a93b25bd..6cc5f52b807 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-tx.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -76,6 +76,8 @@ * @TX_CMD_FLG_VHT_NDPA: mark frame is NDPA for VHT beamformer sequence * @TX_CMD_FLG_HT_NDPA: mark frame is NDPA for HT beamformer sequence * @TX_CMD_FLG_CSI_FDBK2HOST: mark to send feedback to host (only if good CRC) + * @TX_CMD_FLG_BT_PRIO_POS: the position of the BT priority (bit 11 is ignored + * on old firmwares). * @TX_CMD_FLG_BT_DIS: disable BT priority for this frame * @TX_CMD_FLG_SEQ_CTL: set if FW should override the sequence control. * Should be set for mgmt, non-QOS data, mcast, bcast and in scan command @@ -91,7 +93,6 @@ * @TX_CMD_FLG_RESP_TO_DRV: zero this if the response should go only to FW * @TX_CMD_FLG_CCMP_AGG: this frame uses CCMP for aggregation acceleration * @TX_CMD_FLG_TKIP_MIC_DONE: FW already performed TKIP MIC calculation - * @TX_CMD_FLG_CTS_ONLY: send CTS only, no data after that * @TX_CMD_FLG_DUR: disable duration overwriting used in PS-Poll Assoc-id * @TX_CMD_FLG_FW_DROP: FW should mark frame to be dropped * @TX_CMD_FLG_EXEC_PAPD: execute PAPD @@ -108,6 +109,7 @@ enum iwl_tx_flags { TX_CMD_FLG_VHT_NDPA = BIT(8), TX_CMD_FLG_HT_NDPA = BIT(9), TX_CMD_FLG_CSI_FDBK2HOST = BIT(10), + TX_CMD_FLG_BT_PRIO_POS = 11, TX_CMD_FLG_BT_DIS = BIT(12), TX_CMD_FLG_SEQ_CTL = BIT(13), TX_CMD_FLG_MORE_FRAG = BIT(14), @@ -120,7 +122,6 @@ enum iwl_tx_flags { TX_CMD_FLG_RESP_TO_DRV = BIT(21), TX_CMD_FLG_CCMP_AGG = BIT(22), TX_CMD_FLG_TKIP_MIC_DONE = BIT(23), - TX_CMD_FLG_CTS_ONLY = BIT(24), TX_CMD_FLG_DUR = BIT(25), TX_CMD_FLG_FW_DROP = BIT(26), TX_CMD_FLG_EXEC_PAPD = BIT(27), @@ -134,6 +135,8 @@ enum iwl_tx_flags { #define TX_CMD_SEC_WEP 0x01 #define TX_CMD_SEC_CCM 0x02 #define TX_CMD_SEC_TKIP 0x03 +#define TX_CMD_SEC_EXT 0x04 +#define TX_CMD_SEC_MSK 0x07 #define TX_CMD_SEC_WEP_KEY_IDX_POS 6 #define TX_CMD_SEC_WEP_KEY_IDX_MSK 0xc0 #define TX_CMD_SEC_KEY128 0x08 @@ -227,10 +230,11 @@ struct iwl_tx_cmd { __le16 len; __le16 next_frame_len; __le32 tx_flags; - /* DRAM_SCRATCH_API_U_VER_1 */ - u8 try_cnt; - u8 btkill_cnt; - __le16 reserved; + struct { + u8 try_cnt; + u8 btkill_cnt; + __le16 reserved; + } scratch; /* DRAM_SCRATCH_API_U_VER_1 */ __le32 rate_n_flags; u8 sta_id; u8 sec_ctl; @@ -478,7 +482,8 @@ struct iwl_mvm_tx_resp { u8 pa_integ_res_b[3]; u8 pa_integ_res_c[3]; __le16 measurement_req_id; - __le16 reserved; + u8 reduced_tpc; + u8 reserved; __le32 tfd_info; __le16 seq_ctl; diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h index c6384555aab..309a9b9a94f 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h +++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -70,19 +70,20 @@ #include "fw-api-mac.h" #include "fw-api-power.h" #include "fw-api-d3.h" -#include "fw-api-bt-coex.h" +#include "fw-api-coex.h" +#include "fw-api-scan.h" -/* queue and FIFO numbers by usage */ +/* maximal number of Tx queues in any platform */ +#define IWL_MVM_MAX_QUEUES 20 + +/* Tx queue numbers */ enum { IWL_MVM_OFFCHANNEL_QUEUE = 8, IWL_MVM_CMD_QUEUE = 9, - IWL_MVM_AUX_QUEUE = 15, - IWL_MVM_FIRST_AGG_QUEUE = 16, - IWL_MVM_NUM_QUEUES = 20, - IWL_MVM_LAST_AGG_QUEUE = IWL_MVM_NUM_QUEUES - 1, - IWL_MVM_CMD_FIFO = 7 }; +#define IWL_MVM_CMD_FIFO 7 + #define IWL_MVM_STATION_COUNT 16 /* commands */ @@ -95,8 +96,10 @@ enum { /* PHY context commands */ PHY_CONTEXT_CMD = 0x8, DBG_CFG = 0x9, + ANTENNA_COUPLING_NOTIFICATION = 0xa, /* station table */ + ADD_STA_KEY = 0x17, ADD_STA = 0x18, REMOVE_STA = 0x19, @@ -114,6 +117,7 @@ enum { TIME_EVENT_NOTIFICATION = 0x2a, BINDING_CONTEXT_CMD = 0x2b, TIME_QUOTA_CMD = 0x2c, + NON_QOS_TX_COUNTER_CMD = 0x2d, LQ_CMD = 0x4e, @@ -130,14 +134,19 @@ enum { SCAN_OFFLOAD_COMPLETE = 0x6D, SCAN_OFFLOAD_UPDATE_PROFILES_CMD = 0x6E, SCAN_OFFLOAD_CONFIG_CMD = 0x6f, + MATCH_FOUND_NOTIFICATION = 0xd9, /* Phy */ PHY_CONFIGURATION_CMD = 0x6a, CALIB_RES_NOTIF_PHY_DB = 0x6b, /* PHY_DB_CMD = 0x6c, */ - /* Power */ + /* Power - legacy power table command */ POWER_TABLE_CMD = 0x77, + PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION = 0x78, + + /* Thermal Throttling*/ + REPLY_THERMAL_MNG_BACKOFF = 0x7e, /* Scanning */ SCAN_REQUEST_CMD = 0x80, @@ -156,11 +165,18 @@ enum { TX_ANT_CONFIGURATION_CMD = 0x98, BT_CONFIG = 0x9b, STATISTICS_NOTIFICATION = 0x9d, + EOSP_NOTIFICATION = 0x9e, + REDUCE_TX_POWER_CMD = 0x9f, /* RF-KILL commands and notifications */ CARD_STATE_CMD = 0xa0, CARD_STATE_NOTIFICATION = 0xa1, + MISSED_BEACONS_NOTIFICATION = 0xa2, + + /* Power - new power table command */ + MAC_PM_POWER_TABLE = 0xa9, + REPLY_RX_PHY_CMD = 0xc0, REPLY_RX_MPDU_CMD = 0xc1, BA_NOTIF = 0xc5, @@ -169,10 +185,15 @@ enum { BT_COEX_PRIO_TABLE = 0xcc, BT_COEX_PROT_ENV = 0xcd, BT_PROFILE_NOTIFICATION = 0xce, + BT_COEX_CI = 0x5d, + + REPLY_SF_CFG_CMD = 0xd1, + REPLY_BEACON_FILTERING_CMD = 0xd2, REPLY_DEBUG_CMD = 0xf0, DEBUG_LOG_MSG = 0xf7, + BCAST_FILTER_CMD = 0xcf, MCAST_FILTER_CMD = 0xd0, /* D3 commands/notifications */ @@ -180,6 +201,7 @@ enum { PROT_OFFLOAD_CONFIG_CMD = 0xd4, OFFLOADS_QUERY_CMD = 0xd5, REMOTE_WAKE_CONFIG_CMD = 0xd6, + D0I3_END_CMD = 0xed, /* for WoWLAN in particular */ WOWLAN_PATTERNS = 0xe0, @@ -216,6 +238,19 @@ struct iwl_tx_ant_cfg_cmd { __le32 valid; } __packed; +/** + * struct iwl_reduce_tx_power_cmd - TX power reduction command + * REDUCE_TX_POWER_CMD = 0x9f + * @flags: (reserved for future implementation) + * @mac_context_id: id of the mac ctx for which we are reducing TX power. + * @pwr_restriction: TX power restriction in dBms. + */ +struct iwl_reduce_tx_power_cmd { + u8 flags; + u8 mac_context_id; + __le16 pwr_restriction; +} __packed; /* TX_REDUCED_POWER_API_S_VER_1 */ + /* * Calibration control struct. * Sent as part of the phy configuration command. @@ -283,14 +318,12 @@ enum { /* Section types for NVM_ACCESS_CMD */ enum { - NVM_SECTION_TYPE_HW = 0, - NVM_SECTION_TYPE_SW, - NVM_SECTION_TYPE_PAPD, - NVM_SECTION_TYPE_BT, - NVM_SECTION_TYPE_CALIBRATION, - NVM_SECTION_TYPE_PRODUCTION, - NVM_SECTION_TYPE_POST_FCS_CALIB, - NVM_NUM_OF_SECTIONS, + NVM_SECTION_TYPE_SW = 1, + NVM_SECTION_TYPE_REGULATORY = 3, + NVM_SECTION_TYPE_CALIBRATION = 4, + NVM_SECTION_TYPE_PRODUCTION = 5, + NVM_SECTION_TYPE_MAC_OVERRIDE = 11, + NVM_MAX_NUM_SECTIONS = 12, }; /** @@ -382,6 +415,35 @@ struct mvm_alive_resp { __le32 scd_base_ptr; /* SRAM address for SCD */ } __packed; /* ALIVE_RES_API_S_VER_1 */ +struct mvm_alive_resp_ver2 { + __le16 status; + __le16 flags; + u8 ucode_minor; + u8 ucode_major; + __le16 id; + u8 api_minor; + u8 api_major; + u8 ver_subtype; + u8 ver_type; + u8 mac; + u8 opt; + __le16 reserved2; + __le32 timestamp; + __le32 error_event_table_ptr; /* SRAM address for error log */ + __le32 log_event_table_ptr; /* SRAM address for LMAC event log */ + __le32 cpu_register_ptr; + __le32 dbgm_config_ptr; + __le32 alive_counter_ptr; + __le32 scd_base_ptr; /* SRAM address for SCD */ + __le32 st_fwrd_addr; /* pointer to Store and forward */ + __le32 st_fwrd_size; + u8 umac_minor; /* UMAC version: minor */ + u8 umac_major; /* UMAC version: major */ + __le16 umac_id; /* UMAC version: id */ + __le32 error_info_addr; /* SRAM address for UMAC error log */ + __le32 dbg_print_buff_addr; +} __packed; /* ALIVE_RES_API_S_VER_2 */ + /* Error response/notification */ enum { FW_ERR_UNKNOWN_CMD = 0x0, @@ -475,71 +537,155 @@ enum iwl_time_event_type { TE_MAX }; /* MAC_EVENT_TYPE_API_E_VER_1 */ + + +/* Time event - defines for command API v1 */ + +/* + * @TE_V1_FRAG_NONE: fragmentation of the time event is NOT allowed. + * @TE_V1_FRAG_SINGLE: fragmentation of the time event is allowed, but only + * the first fragment is scheduled. + * @TE_V1_FRAG_DUAL: fragmentation of the time event is allowed, but only + * the first 2 fragments are scheduled. + * @TE_V1_FRAG_ENDLESS: fragmentation of the time event is allowed, and any + * number of fragments are valid. + * + * Other than the constant defined above, specifying a fragmentation value 'x' + * means that the event can be fragmented but only the first 'x' will be + * scheduled. + */ +enum { + TE_V1_FRAG_NONE = 0, + TE_V1_FRAG_SINGLE = 1, + TE_V1_FRAG_DUAL = 2, + TE_V1_FRAG_ENDLESS = 0xffffffff +}; + +/* If a Time Event can be fragmented, this is the max number of fragments */ +#define TE_V1_FRAG_MAX_MSK 0x0fffffff +/* Repeat the time event endlessly (until removed) */ +#define TE_V1_REPEAT_ENDLESS 0xffffffff +/* If a Time Event has bounded repetitions, this is the maximal value */ +#define TE_V1_REPEAT_MAX_MSK_V1 0x0fffffff + /* Time Event dependencies: none, on another TE, or in a specific time */ enum { - TE_INDEPENDENT = 0, - TE_DEP_OTHER = 1, - TE_DEP_TSF = 2, - TE_EVENT_SOCIOPATHIC = 4, + TE_V1_INDEPENDENT = 0, + TE_V1_DEP_OTHER = BIT(0), + TE_V1_DEP_TSF = BIT(1), + TE_V1_EVENT_SOCIOPATHIC = BIT(2), }; /* MAC_EVENT_DEPENDENCY_POLICY_API_E_VER_2 */ + /* + * @TE_V1_NOTIF_NONE: no notifications + * @TE_V1_NOTIF_HOST_EVENT_START: request/receive notification on event start + * @TE_V1_NOTIF_HOST_EVENT_END:request/receive notification on event end + * @TE_V1_NOTIF_INTERNAL_EVENT_START: internal FW use + * @TE_V1_NOTIF_INTERNAL_EVENT_END: internal FW use. + * @TE_V1_NOTIF_HOST_FRAG_START: request/receive notification on frag start + * @TE_V1_NOTIF_HOST_FRAG_END:request/receive notification on frag end + * @TE_V1_NOTIF_INTERNAL_FRAG_START: internal FW use. + * @TE_V1_NOTIF_INTERNAL_FRAG_END: internal FW use. + * * Supported Time event notifications configuration. * A notification (both event and fragment) includes a status indicating weather * the FW was able to schedule the event or not. For fragment start/end * notification the status is always success. There is no start/end fragment * notification for monolithic events. - * - * @TE_NOTIF_NONE: no notifications - * @TE_NOTIF_HOST_EVENT_START: request/receive notification on event start - * @TE_NOTIF_HOST_EVENT_END:request/receive notification on event end - * @TE_NOTIF_INTERNAL_EVENT_START: internal FW use - * @TE_NOTIF_INTERNAL_EVENT_END: internal FW use. - * @TE_NOTIF_HOST_FRAG_START: request/receive notification on frag start - * @TE_NOTIF_HOST_FRAG_END:request/receive notification on frag end - * @TE_NOTIF_INTERNAL_FRAG_START: internal FW use. - * @TE_NOTIF_INTERNAL_FRAG_END: internal FW use. */ enum { - TE_NOTIF_NONE = 0, - TE_NOTIF_HOST_EVENT_START = 0x1, - TE_NOTIF_HOST_EVENT_END = 0x2, - TE_NOTIF_INTERNAL_EVENT_START = 0x4, - TE_NOTIF_INTERNAL_EVENT_END = 0x8, - TE_NOTIF_HOST_FRAG_START = 0x10, - TE_NOTIF_HOST_FRAG_END = 0x20, - TE_NOTIF_INTERNAL_FRAG_START = 0x40, - TE_NOTIF_INTERNAL_FRAG_END = 0x80 + TE_V1_NOTIF_NONE = 0, + TE_V1_NOTIF_HOST_EVENT_START = BIT(0), + TE_V1_NOTIF_HOST_EVENT_END = BIT(1), + TE_V1_NOTIF_INTERNAL_EVENT_START = BIT(2), + TE_V1_NOTIF_INTERNAL_EVENT_END = BIT(3), + TE_V1_NOTIF_HOST_FRAG_START = BIT(4), + TE_V1_NOTIF_HOST_FRAG_END = BIT(5), + TE_V1_NOTIF_INTERNAL_FRAG_START = BIT(6), + TE_V1_NOTIF_INTERNAL_FRAG_END = BIT(7), }; /* MAC_EVENT_ACTION_API_E_VER_2 */ +/* Time event - defines for command API */ + /* - * @TE_FRAG_NONE: fragmentation of the time event is NOT allowed. - * @TE_FRAG_SINGLE: fragmentation of the time event is allowed, but only + * @TE_V2_FRAG_NONE: fragmentation of the time event is NOT allowed. + * @TE_V2_FRAG_SINGLE: fragmentation of the time event is allowed, but only * the first fragment is scheduled. - * @TE_FRAG_DUAL: fragmentation of the time event is allowed, but only + * @TE_V2_FRAG_DUAL: fragmentation of the time event is allowed, but only * the first 2 fragments are scheduled. - * @TE_FRAG_ENDLESS: fragmentation of the time event is allowed, and any number - * of fragments are valid. + * @TE_V2_FRAG_ENDLESS: fragmentation of the time event is allowed, and any + * number of fragments are valid. * * Other than the constant defined above, specifying a fragmentation value 'x' * means that the event can be fragmented but only the first 'x' will be * scheduled. */ enum { - TE_FRAG_NONE = 0, - TE_FRAG_SINGLE = 1, - TE_FRAG_DUAL = 2, - TE_FRAG_ENDLESS = 0xffffffff + TE_V2_FRAG_NONE = 0, + TE_V2_FRAG_SINGLE = 1, + TE_V2_FRAG_DUAL = 2, + TE_V2_FRAG_MAX = 0xfe, + TE_V2_FRAG_ENDLESS = 0xff }; /* Repeat the time event endlessly (until removed) */ -#define TE_REPEAT_ENDLESS (0xffffffff) +#define TE_V2_REPEAT_ENDLESS 0xff /* If a Time Event has bounded repetitions, this is the maximal value */ -#define TE_REPEAT_MAX_MSK (0x0fffffff) -/* If a Time Event can be fragmented, this is the max number of fragments */ -#define TE_FRAG_MAX_MSK (0x0fffffff) +#define TE_V2_REPEAT_MAX 0xfe + +#define TE_V2_PLACEMENT_POS 12 +#define TE_V2_ABSENCE_POS 15 + +/* Time event policy values + * A notification (both event and fragment) includes a status indicating weather + * the FW was able to schedule the event or not. For fragment start/end + * notification the status is always success. There is no start/end fragment + * notification for monolithic events. + * + * @TE_V2_DEFAULT_POLICY: independent, social, present, unoticable + * @TE_V2_NOTIF_HOST_EVENT_START: request/receive notification on event start + * @TE_V2_NOTIF_HOST_EVENT_END:request/receive notification on event end + * @TE_V2_NOTIF_INTERNAL_EVENT_START: internal FW use + * @TE_V2_NOTIF_INTERNAL_EVENT_END: internal FW use. + * @TE_V2_NOTIF_HOST_FRAG_START: request/receive notification on frag start + * @TE_V2_NOTIF_HOST_FRAG_END:request/receive notification on frag end + * @TE_V2_NOTIF_INTERNAL_FRAG_START: internal FW use. + * @TE_V2_NOTIF_INTERNAL_FRAG_END: internal FW use. + * @TE_V2_DEP_OTHER: depends on another time event + * @TE_V2_DEP_TSF: depends on a specific time + * @TE_V2_EVENT_SOCIOPATHIC: can't co-exist with other events of tha same MAC + * @TE_V2_ABSENCE: are we present or absent during the Time Event. + */ +enum { + TE_V2_DEFAULT_POLICY = 0x0, + + /* notifications (event start/stop, fragment start/stop) */ + TE_V2_NOTIF_HOST_EVENT_START = BIT(0), + TE_V2_NOTIF_HOST_EVENT_END = BIT(1), + TE_V2_NOTIF_INTERNAL_EVENT_START = BIT(2), + TE_V2_NOTIF_INTERNAL_EVENT_END = BIT(3), + + TE_V2_NOTIF_HOST_FRAG_START = BIT(4), + TE_V2_NOTIF_HOST_FRAG_END = BIT(5), + TE_V2_NOTIF_INTERNAL_FRAG_START = BIT(6), + TE_V2_NOTIF_INTERNAL_FRAG_END = BIT(7), + T2_V2_START_IMMEDIATELY = BIT(11), + + TE_V2_NOTIF_MSK = 0xff, + + /* placement characteristics */ + TE_V2_DEP_OTHER = BIT(TE_V2_PLACEMENT_POS), + TE_V2_DEP_TSF = BIT(TE_V2_PLACEMENT_POS + 1), + TE_V2_EVENT_SOCIOPATHIC = BIT(TE_V2_PLACEMENT_POS + 2), + + /* are we present or absent during the Time Event. */ + TE_V2_ABSENCE = BIT(TE_V2_ABSENCE_POS), +}; /** - * struct iwl_time_event_cmd - configuring Time Events + * struct iwl_time_event_cmd_api - configuring Time Events + * with struct MAC_TIME_EVENT_DATA_API_S_VER_2 (see also + * with version 1. determined by IWL_UCODE_TLV_FLAGS) * ( TIME_EVENT_CMD = 0x29 ) * @id_and_color: ID and color of the relevant MAC * @action: action to perform, one of FW_CTXT_ACTION_* @@ -551,32 +697,30 @@ enum { * @max_delay: maximum delay to event's start (apply time), in TU * @depends_on: the unique ID of the event we depend on (if any) * @interval: interval between repetitions, in TU - * @interval_reciprocal: 2^32 / interval * @duration: duration of event in TU * @repeat: how many repetitions to do, can be TE_REPEAT_ENDLESS - * @dep_policy: one of TE_INDEPENDENT, TE_DEP_OTHER, TE_DEP_TSF - * @is_present: 0 or 1, are we present or absent during the Time Event * @max_frags: maximal number of fragments the Time Event can be divided to - * @notify: notifications using TE_NOTIF_* (whom to notify when) + * @policy: defines whether uCode shall notify the host or other uCode modules + * on event and/or fragment start and/or end + * using one of TE_INDEPENDENT, TE_DEP_OTHER, TE_DEP_TSF + * TE_EVENT_SOCIOPATHIC + * using TE_ABSENCE and using TE_NOTIF_* */ struct iwl_time_event_cmd { /* COMMON_INDEX_HDR_API_S_VER_1 */ __le32 id_and_color; __le32 action; __le32 id; - /* MAC_TIME_EVENT_DATA_API_S_VER_1 */ + /* MAC_TIME_EVENT_DATA_API_S_VER_2 */ __le32 apply_time; __le32 max_delay; - __le32 dep_policy; __le32 depends_on; - __le32 is_present; - __le32 max_frags; __le32 interval; - __le32 interval_reciprocal; __le32 duration; - __le32 repeat; - __le32 notify; -} __packed; /* MAC_TIME_EVENT_CMD_API_S_VER_1 */ + u8 repeat; + u8 max_frags; + __le16 policy; +} __packed; /* MAC_TIME_EVENT_CMD_API_S_VER_2 */ /** * struct iwl_time_event_resp - response structure to iwl_time_event_cmd @@ -758,6 +902,14 @@ struct iwl_phy_context_cmd { } __packed; /* PHY_CONTEXT_CMD_API_VER_1 */ #define IWL_RX_INFO_PHY_CNT 8 +#define IWL_RX_INFO_ENERGY_ANT_ABC_IDX 1 +#define IWL_RX_INFO_ENERGY_ANT_A_MSK 0x000000ff +#define IWL_RX_INFO_ENERGY_ANT_B_MSK 0x0000ff00 +#define IWL_RX_INFO_ENERGY_ANT_C_MSK 0x00ff0000 +#define IWL_RX_INFO_ENERGY_ANT_A_POS 0 +#define IWL_RX_INFO_ENERGY_ANT_B_POS 8 +#define IWL_RX_INFO_ENERGY_ANT_C_POS 16 + #define IWL_RX_INFO_AGC_IDX 1 #define IWL_RX_INFO_RSSI_AB_IDX 2 #define IWL_OFDM_AGC_A_MSK 0x0000007f @@ -890,6 +1042,7 @@ enum iwl_mvm_rx_status { RX_MPDU_RES_STATUS_SEC_WEP_ENC = (1 << 8), RX_MPDU_RES_STATUS_SEC_CCM_ENC = (2 << 8), RX_MPDU_RES_STATUS_SEC_TKIP_ENC = (3 << 8), + RX_MPDU_RES_STATUS_SEC_EXT_ENC = (4 << 8), RX_MPDU_RES_STATUS_SEC_CCM_CMAC_ENC = (6 << 8), RX_MPDU_RES_STATUS_SEC_ENC_ERR = (7 << 8), RX_MPDU_RES_STATUS_SEC_ENC_MSK = (7 << 8), @@ -938,6 +1091,24 @@ struct iwl_card_state_notif { } __packed; /* CARD_STATE_NTFY_API_S_VER_1 */ /** + * struct iwl_missed_beacons_notif - information on missed beacons + * ( MISSED_BEACONS_NOTIFICATION = 0xa2 ) + * @mac_id: interface ID + * @consec_missed_beacons_since_last_rx: number of consecutive missed + * beacons since last RX. + * @consec_missed_beacons: number of consecutive missed beacons + * @num_expected_beacons: + * @num_recvd_beacons: + */ +struct iwl_missed_beacons_notif { + __le32 mac_id; + __le32 consec_missed_beacons_since_last_rx; + __le32 consec_missed_beacons; + __le32 num_expected_beacons; + __le32 num_recvd_beacons; +} __packed; /* MISSED_BEACON_NTFY_API_S_VER_3 */ + +/** * struct iwl_set_calib_default_cmd - set default value for calibration. * ( SET_CALIB_DEFAULT_CMD = 0x8e ) * @calib_index: the calibration to set value for @@ -951,6 +1122,7 @@ struct iwl_set_calib_default_cmd { } __packed; /* PHY_CALIB_OVERRIDE_VALUES_S */ #define MAX_PORT_ID_NUM 2 +#define MAX_MCAST_FILTERING_ADDRESSES 256 /** * struct iwl_mcast_filter_cmd - configure multicast filter. @@ -975,4 +1147,357 @@ struct iwl_mcast_filter_cmd { u8 addr_list[0]; } __packed; /* MCAST_FILTERING_CMD_API_S_VER_1 */ +#define MAX_BCAST_FILTERS 8 +#define MAX_BCAST_FILTER_ATTRS 2 + +/** + * enum iwl_mvm_bcast_filter_attr_offset - written by fw for each Rx packet + * @BCAST_FILTER_OFFSET_PAYLOAD_START: offset is from payload start. + * @BCAST_FILTER_OFFSET_IP_END: offset is from ip header end (i.e. + * start of ip payload). + */ +enum iwl_mvm_bcast_filter_attr_offset { + BCAST_FILTER_OFFSET_PAYLOAD_START = 0, + BCAST_FILTER_OFFSET_IP_END = 1, +}; + +/** + * struct iwl_fw_bcast_filter_attr - broadcast filter attribute + * @offset_type: &enum iwl_mvm_bcast_filter_attr_offset. + * @offset: starting offset of this pattern. + * @val: value to match - big endian (MSB is the first + * byte to match from offset pos). + * @mask: mask to match (big endian). + */ +struct iwl_fw_bcast_filter_attr { + u8 offset_type; + u8 offset; + __le16 reserved1; + __be32 val; + __be32 mask; +} __packed; /* BCAST_FILTER_ATT_S_VER_1 */ + +/** + * enum iwl_mvm_bcast_filter_frame_type - filter frame type + * @BCAST_FILTER_FRAME_TYPE_ALL: consider all frames. + * @BCAST_FILTER_FRAME_TYPE_IPV4: consider only ipv4 frames + */ +enum iwl_mvm_bcast_filter_frame_type { + BCAST_FILTER_FRAME_TYPE_ALL = 0, + BCAST_FILTER_FRAME_TYPE_IPV4 = 1, +}; + +/** + * struct iwl_fw_bcast_filter - broadcast filter + * @discard: discard frame (1) or let it pass (0). + * @frame_type: &enum iwl_mvm_bcast_filter_frame_type. + * @num_attrs: number of valid attributes in this filter. + * @attrs: attributes of this filter. a filter is considered matched + * only when all its attributes are matched (i.e. AND relationship) + */ +struct iwl_fw_bcast_filter { + u8 discard; + u8 frame_type; + u8 num_attrs; + u8 reserved1; + struct iwl_fw_bcast_filter_attr attrs[MAX_BCAST_FILTER_ATTRS]; +} __packed; /* BCAST_FILTER_S_VER_1 */ + +/** + * struct iwl_fw_bcast_mac - per-mac broadcast filtering configuration. + * @default_discard: default action for this mac (discard (1) / pass (0)). + * @attached_filters: bitmap of relevant filters for this mac. + */ +struct iwl_fw_bcast_mac { + u8 default_discard; + u8 reserved1; + __le16 attached_filters; +} __packed; /* BCAST_MAC_CONTEXT_S_VER_1 */ + +/** + * struct iwl_bcast_filter_cmd - broadcast filtering configuration + * @disable: enable (0) / disable (1) + * @max_bcast_filters: max number of filters (MAX_BCAST_FILTERS) + * @max_macs: max number of macs (NUM_MAC_INDEX_DRIVER) + * @filters: broadcast filters + * @macs: broadcast filtering configuration per-mac + */ +struct iwl_bcast_filter_cmd { + u8 disable; + u8 max_bcast_filters; + u8 max_macs; + u8 reserved1; + struct iwl_fw_bcast_filter filters[MAX_BCAST_FILTERS]; + struct iwl_fw_bcast_mac macs[NUM_MAC_INDEX_DRIVER]; +} __packed; /* BCAST_FILTERING_HCMD_API_S_VER_1 */ + +struct mvm_statistics_dbg { + __le32 burst_check; + __le32 burst_count; + __le32 wait_for_silence_timeout_cnt; + __le32 reserved[3]; +} __packed; /* STATISTICS_DEBUG_API_S_VER_2 */ + +struct mvm_statistics_div { + __le32 tx_on_a; + __le32 tx_on_b; + __le32 exec_time; + __le32 probe_time; + __le32 rssi_ant; + __le32 reserved2; +} __packed; /* STATISTICS_SLOW_DIV_API_S_VER_2 */ + +struct mvm_statistics_general_common { + __le32 temperature; /* radio temperature */ + __le32 temperature_m; /* radio voltage */ + struct mvm_statistics_dbg dbg; + __le32 sleep_time; + __le32 slots_out; + __le32 slots_idle; + __le32 ttl_timestamp; + struct mvm_statistics_div div; + __le32 rx_enable_counter; + /* + * num_of_sos_states: + * count the number of times we have to re-tune + * in order to get out of bad PHY status + */ + __le32 num_of_sos_states; +} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */ + +struct mvm_statistics_rx_non_phy { + __le32 bogus_cts; /* CTS received when not expecting CTS */ + __le32 bogus_ack; /* ACK received when not expecting ACK */ + __le32 non_bssid_frames; /* number of frames with BSSID that + * doesn't belong to the STA BSSID */ + __le32 filtered_frames; /* count frames that were dumped in the + * filtering process */ + __le32 non_channel_beacons; /* beacons with our bss id but not on + * our serving channel */ + __le32 channel_beacons; /* beacons with our bss id and in our + * serving channel */ + __le32 num_missed_bcon; /* number of missed beacons */ + __le32 adc_rx_saturation_time; /* count in 0.8us units the time the + * ADC was in saturation */ + __le32 ina_detection_search_time;/* total time (in 0.8us) searched + * for INA */ + __le32 beacon_silence_rssi_a; /* RSSI silence after beacon frame */ + __le32 beacon_silence_rssi_b; /* RSSI silence after beacon frame */ + __le32 beacon_silence_rssi_c; /* RSSI silence after beacon frame */ + __le32 interference_data_flag; /* flag for interference data + * availability. 1 when data is + * available. */ + __le32 channel_load; /* counts RX Enable time in uSec */ + __le32 dsp_false_alarms; /* DSP false alarm (both OFDM + * and CCK) counter */ + __le32 beacon_rssi_a; + __le32 beacon_rssi_b; + __le32 beacon_rssi_c; + __le32 beacon_energy_a; + __le32 beacon_energy_b; + __le32 beacon_energy_c; + __le32 num_bt_kills; + __le32 mac_id; + __le32 directed_data_mpdu; +} __packed; /* STATISTICS_RX_NON_PHY_API_S_VER_3 */ + +struct mvm_statistics_rx_phy { + __le32 ina_cnt; + __le32 fina_cnt; + __le32 plcp_err; + __le32 crc32_err; + __le32 overrun_err; + __le32 early_overrun_err; + __le32 crc32_good; + __le32 false_alarm_cnt; + __le32 fina_sync_err_cnt; + __le32 sfd_timeout; + __le32 fina_timeout; + __le32 unresponded_rts; + __le32 rxe_frame_limit_overrun; + __le32 sent_ack_cnt; + __le32 sent_cts_cnt; + __le32 sent_ba_rsp_cnt; + __le32 dsp_self_kill; + __le32 mh_format_err; + __le32 re_acq_main_rssi_sum; + __le32 reserved; +} __packed; /* STATISTICS_RX_PHY_API_S_VER_2 */ + +struct mvm_statistics_rx_ht_phy { + __le32 plcp_err; + __le32 overrun_err; + __le32 early_overrun_err; + __le32 crc32_good; + __le32 crc32_err; + __le32 mh_format_err; + __le32 agg_crc32_good; + __le32 agg_mpdu_cnt; + __le32 agg_cnt; + __le32 unsupport_mcs; +} __packed; /* STATISTICS_HT_RX_PHY_API_S_VER_1 */ + +#define MAX_CHAINS 3 + +struct mvm_statistics_tx_non_phy_agg { + __le32 ba_timeout; + __le32 ba_reschedule_frames; + __le32 scd_query_agg_frame_cnt; + __le32 scd_query_no_agg; + __le32 scd_query_agg; + __le32 scd_query_mismatch; + __le32 frame_not_ready; + __le32 underrun; + __le32 bt_prio_kill; + __le32 rx_ba_rsp_cnt; + __s8 txpower[MAX_CHAINS]; + __s8 reserved; + __le32 reserved2; +} __packed; /* STATISTICS_TX_NON_PHY_AGG_API_S_VER_1 */ + +struct mvm_statistics_tx_channel_width { + __le32 ext_cca_narrow_ch20[1]; + __le32 ext_cca_narrow_ch40[2]; + __le32 ext_cca_narrow_ch80[3]; + __le32 ext_cca_narrow_ch160[4]; + __le32 last_tx_ch_width_indx; + __le32 rx_detected_per_ch_width[4]; + __le32 success_per_ch_width[4]; + __le32 fail_per_ch_width[4]; +}; /* STATISTICS_TX_CHANNEL_WIDTH_API_S_VER_1 */ + +struct mvm_statistics_tx { + __le32 preamble_cnt; + __le32 rx_detected_cnt; + __le32 bt_prio_defer_cnt; + __le32 bt_prio_kill_cnt; + __le32 few_bytes_cnt; + __le32 cts_timeout; + __le32 ack_timeout; + __le32 expected_ack_cnt; + __le32 actual_ack_cnt; + __le32 dump_msdu_cnt; + __le32 burst_abort_next_frame_mismatch_cnt; + __le32 burst_abort_missing_next_frame_cnt; + __le32 cts_timeout_collision; + __le32 ack_or_ba_timeout_collision; + struct mvm_statistics_tx_non_phy_agg agg; + struct mvm_statistics_tx_channel_width channel_width; +} __packed; /* STATISTICS_TX_API_S_VER_4 */ + + +struct mvm_statistics_bt_activity { + __le32 hi_priority_tx_req_cnt; + __le32 hi_priority_tx_denied_cnt; + __le32 lo_priority_tx_req_cnt; + __le32 lo_priority_tx_denied_cnt; + __le32 hi_priority_rx_req_cnt; + __le32 hi_priority_rx_denied_cnt; + __le32 lo_priority_rx_req_cnt; + __le32 lo_priority_rx_denied_cnt; +} __packed; /* STATISTICS_BT_ACTIVITY_API_S_VER_1 */ + +struct mvm_statistics_general { + struct mvm_statistics_general_common common; + __le32 beacon_filtered; + __le32 missed_beacons; + __s8 beacon_filter_average_energy; + __s8 beacon_filter_reason; + __s8 beacon_filter_current_energy; + __s8 beacon_filter_reserved; + __le32 beacon_filter_delta_time; + struct mvm_statistics_bt_activity bt_activity; +} __packed; /* STATISTICS_GENERAL_API_S_VER_5 */ + +struct mvm_statistics_rx { + struct mvm_statistics_rx_phy ofdm; + struct mvm_statistics_rx_phy cck; + struct mvm_statistics_rx_non_phy general; + struct mvm_statistics_rx_ht_phy ofdm_ht; +} __packed; /* STATISTICS_RX_API_S_VER_3 */ + +/* + * STATISTICS_NOTIFICATION = 0x9d (notification only, not a command) + * + * By default, uCode issues this notification after receiving a beacon + * while associated. To disable this behavior, set DISABLE_NOTIF flag in the + * REPLY_STATISTICS_CMD 0x9c, above. + * + * Statistics counters continue to increment beacon after beacon, but are + * cleared when changing channels or when driver issues REPLY_STATISTICS_CMD + * 0x9c with CLEAR_STATS bit set (see above). + * + * uCode also issues this notification during scans. uCode clears statistics + * appropriately so that each notification contains statistics for only the + * one channel that has just been scanned. + */ + +struct iwl_notif_statistics { /* STATISTICS_NTFY_API_S_VER_8 */ + __le32 flag; + struct mvm_statistics_rx rx; + struct mvm_statistics_tx tx; + struct mvm_statistics_general general; +} __packed; + +/*********************************** + * Smart Fifo API + ***********************************/ +/* Smart Fifo state */ +enum iwl_sf_state { + SF_LONG_DELAY_ON = 0, /* should never be called by driver */ + SF_FULL_ON, + SF_UNINIT, + SF_INIT_OFF, + SF_HW_NUM_STATES +}; + +/* Smart Fifo possible scenario */ +enum iwl_sf_scenario { + SF_SCENARIO_SINGLE_UNICAST, + SF_SCENARIO_AGG_UNICAST, + SF_SCENARIO_MULTICAST, + SF_SCENARIO_BA_RESP, + SF_SCENARIO_TX_RESP, + SF_NUM_SCENARIO +}; + +#define SF_TRANSIENT_STATES_NUMBER 2 /* SF_LONG_DELAY_ON and SF_FULL_ON */ +#define SF_NUM_TIMEOUT_TYPES 2 /* Aging timer and Idle timer */ + +/* smart FIFO default values */ +#define SF_W_MARK_SISO 4096 +#define SF_W_MARK_MIMO2 8192 +#define SF_W_MARK_MIMO3 6144 +#define SF_W_MARK_LEGACY 4096 +#define SF_W_MARK_SCAN 4096 + +/* SF Scenarios timers for FULL_ON state (aligned to 32 uSec) */ +#define SF_SINGLE_UNICAST_IDLE_TIMER 320 /* 300 uSec */ +#define SF_SINGLE_UNICAST_AGING_TIMER 2016 /* 2 mSec */ +#define SF_AGG_UNICAST_IDLE_TIMER 320 /* 300 uSec */ +#define SF_AGG_UNICAST_AGING_TIMER 2016 /* 2 mSec */ +#define SF_MCAST_IDLE_TIMER 2016 /* 2 mSec */ +#define SF_MCAST_AGING_TIMER 10016 /* 10 mSec */ +#define SF_BA_IDLE_TIMER 320 /* 300 uSec */ +#define SF_BA_AGING_TIMER 2016 /* 2 mSec */ +#define SF_TX_RE_IDLE_TIMER 320 /* 300 uSec */ +#define SF_TX_RE_AGING_TIMER 2016 /* 2 mSec */ + +#define SF_LONG_DELAY_AGING_TIMER 1000000 /* 1 Sec */ + +/** + * Smart Fifo configuration command. + * @state: smart fifo state, types listed in iwl_sf_sate. + * @watermark: Minimum allowed availabe free space in RXF for transient state. + * @long_delay_timeouts: aging and idle timer values for each scenario + * in long delay state. + * @full_on_timeouts: timer values for each scenario in full on state. + */ +struct iwl_sf_cfg_cmd { + enum iwl_sf_state state; + __le32 watermark[SF_TRANSIENT_STATES_NUMBER]; + __le32 long_delay_timeouts[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES]; + __le32 full_on_timeouts[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES]; +} __packed; /* SF_CFG_API_S_VER_2 */ + #endif /* __fw_api_h__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c index e18c92dd60e..883e702152d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/fw.c +++ b/drivers/net/wireless/iwlwifi/mvm/fw.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -78,22 +78,6 @@ #define UCODE_VALID_OK cpu_to_le32(0x1) -/* Default calibration values for WkP - set to INIT image w/o running */ -static const u8 wkp_calib_values_rx_iq_skew[] = { 0x00, 0x00, 0x01, 0x00 }; -static const u8 wkp_calib_values_tx_iq_skew[] = { 0x01, 0x00, 0x00, 0x00 }; - -struct iwl_calib_default_data { - u16 size; - void *data; -}; - -#define CALIB_SIZE_N_DATA(_buf) {.size = sizeof(_buf), .data = &_buf} - -static const struct iwl_calib_default_data wkp_calib_default_data[12] = { - [9] = CALIB_SIZE_N_DATA(wkp_calib_values_tx_iq_skew), - [11] = CALIB_SIZE_N_DATA(wkp_calib_values_rx_iq_skew), -}; - struct iwl_mvm_alive_data { bool valid; u32 scd_base_addr; @@ -115,7 +99,7 @@ static int iwl_send_tx_ant_cfg(struct iwl_mvm *mvm, u8 valid_tx_ant) }; IWL_DEBUG_FW(mvm, "select valid tx ant: %u\n", valid_tx_ant); - return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, CMD_SYNC, + return iwl_mvm_send_cmd_pdu(mvm, TX_ANT_CONFIGURATION_CMD, 0, sizeof(tx_ant_cmd), &tx_ant_cmd); } @@ -126,18 +110,50 @@ static bool iwl_alive_fn(struct iwl_notif_wait_data *notif_wait, container_of(notif_wait, struct iwl_mvm, notif_wait); struct iwl_mvm_alive_data *alive_data = data; struct mvm_alive_resp *palive; - - palive = (void *)pkt->data; - - mvm->error_event_table = le32_to_cpu(palive->error_event_table_ptr); - mvm->log_event_table = le32_to_cpu(palive->log_event_table_ptr); - alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr); - - alive_data->valid = le16_to_cpu(palive->status) == IWL_ALIVE_STATUS_OK; - IWL_DEBUG_FW(mvm, - "Alive ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n", - le16_to_cpu(palive->status), palive->ver_type, - palive->ver_subtype, palive->flags); + struct mvm_alive_resp_ver2 *palive2; + + if (iwl_rx_packet_payload_len(pkt) == sizeof(*palive)) { + palive = (void *)pkt->data; + + mvm->support_umac_log = false; + mvm->error_event_table = + le32_to_cpu(palive->error_event_table_ptr); + mvm->log_event_table = le32_to_cpu(palive->log_event_table_ptr); + alive_data->scd_base_addr = le32_to_cpu(palive->scd_base_ptr); + + alive_data->valid = le16_to_cpu(palive->status) == + IWL_ALIVE_STATUS_OK; + IWL_DEBUG_FW(mvm, + "Alive VER1 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n", + le16_to_cpu(palive->status), palive->ver_type, + palive->ver_subtype, palive->flags); + } else { + palive2 = (void *)pkt->data; + + mvm->error_event_table = + le32_to_cpu(palive2->error_event_table_ptr); + mvm->log_event_table = + le32_to_cpu(palive2->log_event_table_ptr); + alive_data->scd_base_addr = le32_to_cpu(palive2->scd_base_ptr); + mvm->umac_error_event_table = + le32_to_cpu(palive2->error_info_addr); + mvm->sf_space.addr = le32_to_cpu(palive2->st_fwrd_addr); + mvm->sf_space.size = le32_to_cpu(palive2->st_fwrd_size); + + alive_data->valid = le16_to_cpu(palive2->status) == + IWL_ALIVE_STATUS_OK; + if (mvm->umac_error_event_table) + mvm->support_umac_log = true; + + IWL_DEBUG_FW(mvm, + "Alive VER2 ucode status 0x%04x revision 0x%01X 0x%01X flags 0x%01X\n", + le16_to_cpu(palive2->status), palive2->ver_type, + palive2->ver_subtype, palive2->flags); + + IWL_DEBUG_FW(mvm, + "UMAC version: Major - 0x%x, Minor - 0x%x\n", + palive2->umac_major, palive2->umac_minor); + } return true; } @@ -166,14 +182,13 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm, int ret, i; enum iwl_ucode_type old_type = mvm->cur_ucode; static const u8 alive_cmd[] = { MVM_ALIVE }; + struct iwl_sf_region st_fwrd_space; - mvm->cur_ucode = ucode_type; fw = iwl_get_ucode_image(mvm, ucode_type); - - mvm->ucode_loaded = false; - - if (!fw) + if (WARN_ON(!fw)) return -EINVAL; + mvm->cur_ucode = ucode_type; + mvm->ucode_loaded = false; iwl_init_notification_wait(&mvm->notif_wait, &alive_wait, alive_cmd, ARRAY_SIZE(alive_cmd), @@ -203,6 +218,14 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm, return -EIO; } + /* + * update the sdio allocation according to the pointer we get in the + * alive notification. + */ + st_fwrd_space.addr = mvm->sf_space.addr; + st_fwrd_space.size = mvm->sf_space.size; + ret = iwl_trans_update_sf(mvm->trans, &st_fwrd_space); + iwl_trans_fw_alive(mvm->trans, alive_data.scd_base_addr); /* @@ -215,7 +238,7 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm, */ for (i = 0; i < IWL_MAX_HW_QUEUES; i++) { - if (i < IWL_MVM_FIRST_AGG_QUEUE && i != IWL_MVM_CMD_QUEUE) + if (i < mvm->first_agg_queue && i != IWL_MVM_CMD_QUEUE) mvm->queue_to_mac80211[i] = i; else mvm->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE; @@ -244,44 +267,10 @@ static int iwl_send_phy_cfg_cmd(struct iwl_mvm *mvm) IWL_DEBUG_INFO(mvm, "Sending Phy CFG command: 0x%x\n", phy_cfg_cmd.phy_cfg); - return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, CMD_SYNC, + return iwl_mvm_send_cmd_pdu(mvm, PHY_CONFIGURATION_CMD, 0, sizeof(phy_cfg_cmd), &phy_cfg_cmd); } -static int iwl_set_default_calibrations(struct iwl_mvm *mvm) -{ - u8 cmd_raw[16]; /* holds the variable size commands */ - struct iwl_set_calib_default_cmd *cmd = - (struct iwl_set_calib_default_cmd *)cmd_raw; - int ret, i; - - /* Setting default values for calibrations we don't run */ - for (i = 0; i < ARRAY_SIZE(wkp_calib_default_data); i++) { - u16 cmd_len; - - if (wkp_calib_default_data[i].size == 0) - continue; - - memset(cmd_raw, 0, sizeof(cmd_raw)); - cmd_len = wkp_calib_default_data[i].size + sizeof(cmd); - cmd->calib_index = cpu_to_le16(i); - cmd->length = cpu_to_le16(wkp_calib_default_data[i].size); - if (WARN_ONCE(cmd_len > sizeof(cmd_raw), - "Need to enlarge cmd_raw to %d\n", cmd_len)) - break; - memcpy(cmd->data, wkp_calib_default_data[i].data, - wkp_calib_default_data[i].size); - ret = iwl_mvm_send_cmd_pdu(mvm, SET_CALIB_DEFAULT_CMD, 0, - sizeof(*cmd) + - wkp_calib_default_data[i].size, - cmd); - if (ret) - return ret; - } - - return 0; -} - int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) { struct iwl_notification_wait calib_wait; @@ -293,7 +282,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) lockdep_assert_held(&mvm->mutex); - if (mvm->init_ucode_run) + if (WARN_ON_ONCE(mvm->init_ucode_complete)) return 0; iwl_init_notification_wait(&mvm->notif_wait, @@ -310,29 +299,41 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) goto error; } - ret = iwl_send_bt_prio_tbl(mvm); + ret = iwl_send_bt_init_conf(mvm); if (ret) goto error; + /* Read the NVM only at driver load time, no need to do this twice */ if (read_nvm) { /* Read nvm */ - ret = iwl_nvm_init(mvm); + ret = iwl_nvm_init(mvm, true); if (ret) { IWL_ERR(mvm, "Failed to read NVM: %d\n", ret); goto error; } } + /* In case we read the NVM from external file, load it to the NIC */ + if (mvm->nvm_file_name) + iwl_mvm_load_nvm_to_nic(mvm); + ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans); WARN_ON(ret); - /* Send TX valid antennas before triggering calibrations */ - ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw)); - if (ret) - goto error; + /* + * abort after reading the nvm in case RF Kill is on, we will complete + * the init seq later when RF kill will switch to off + */ + if (iwl_mvm_is_radio_killed(mvm)) { + IWL_DEBUG_RF_KILL(mvm, + "jump over all phy activities due to RF kill\n"); + iwl_remove_notification(&mvm->notif_wait, &calib_wait); + ret = 1; + goto out; + } - /* need to set default values */ - ret = iwl_set_default_calibrations(mvm); + /* Send TX valid antennas before triggering calibrations */ + ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant); if (ret) goto error; @@ -354,15 +355,13 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm) ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait, MVM_UCODE_CALIB_TIMEOUT); if (!ret) - mvm->init_ucode_run = true; + mvm->init_ucode_complete = true; goto out; error: iwl_remove_notification(&mvm->notif_wait, &calib_wait); out: - if (!iwlmvm_mod_params.init_dbg) { - iwl_trans_stop_device(mvm->trans); - } else if (!mvm->nvm_data) { + if (iwlmvm_mod_params.init_dbg && !mvm->nvm_data) { /* we want to debug INIT and we have no NVM - fake */ mvm->nvm_data = kzalloc(sizeof(struct iwl_nvm_data) + sizeof(struct ieee80211_channel) + @@ -370,8 +369,6 @@ out: GFP_KERNEL); if (!mvm->nvm_data) return -ENOMEM; - mvm->nvm_data->valid_rx_ant = 1; - mvm->nvm_data->valid_tx_ant = 1; mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels; mvm->nvm_data->bands[0].n_channels = 1; mvm->nvm_data->bands[0].n_bitrates = 1; @@ -383,11 +380,11 @@ out: return ret; } -#define UCODE_CALIB_TIMEOUT (2*HZ) - int iwl_mvm_up(struct iwl_mvm *mvm) { int ret, i; + struct ieee80211_channel *chan; + struct cfg80211_chan_def chandef; lockdep_assert_held(&mvm->mutex); @@ -395,13 +392,30 @@ int iwl_mvm_up(struct iwl_mvm *mvm) if (ret) return ret; - /* If we were in RFKILL during module loading, load init ucode now */ - if (!mvm->init_ucode_run) { + /* + * If we haven't completed the run of the init ucode during + * module loading, load init ucode now + * (for example, if we were in RFKILL) + */ + if (!mvm->init_ucode_complete) { ret = iwl_run_init_mvm_ucode(mvm, false); if (ret && !iwlmvm_mod_params.init_dbg) { IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret); + /* this can't happen */ + if (WARN_ON(ret > 0)) + ret = -ERFKILL; goto error; } + if (!iwlmvm_mod_params.init_dbg) { + /* + * should stop and start HW since that INIT + * image just loaded + */ + iwl_trans_stop_device(mvm->trans); + ret = iwl_trans_start_hw(mvm->trans); + if (ret) + return ret; + } } if (iwlmvm_mod_params.init_dbg) @@ -413,11 +427,11 @@ int iwl_mvm_up(struct iwl_mvm *mvm) goto error; } - ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw)); + ret = iwl_mvm_sf_update(mvm, NULL, false); if (ret) - goto error; + IWL_ERR(mvm, "Failed to initialize Smart Fifo\n"); - ret = iwl_send_bt_prio_tbl(mvm); + ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant); if (ret) goto error; @@ -443,8 +457,33 @@ int iwl_mvm_up(struct iwl_mvm *mvm) if (ret) goto error; - IWL_DEBUG_INFO(mvm, "RT uCode started.\n"); + /* Add all the PHY contexts */ + chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0]; + cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT); + for (i = 0; i < NUM_PHY_CTX; i++) { + /* + * The channel used here isn't relevant as it's + * going to be overwritten in the other flows. + * For now use the first channel we have. + */ + ret = iwl_mvm_phy_ctxt_add(mvm, &mvm->phy_ctxts[i], + &chandef, 1, 1); + if (ret) + goto error; + } + /* Initialize tx backoffs to the minimal possible */ + iwl_mvm_tt_tx_backoff(mvm, 0); + + ret = iwl_mvm_power_update_device(mvm); + if (ret) + goto error; + + /* allow FW/transport low power modes if not during restart */ + if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) + iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); + + IWL_DEBUG_INFO(mvm, "RT uCode started.\n"); return 0; error: iwl_trans_stop_device(mvm->trans); @@ -467,7 +506,7 @@ int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm) goto error; } - ret = iwl_send_tx_ant_cfg(mvm, iwl_fw_valid_tx_ant(mvm->fw)); + ret = iwl_send_tx_ant_cfg(mvm, mvm->fw->valid_tx_ant); if (ret) goto error; diff --git a/drivers/net/wireless/iwlwifi/mvm/led.c b/drivers/net/wireless/iwlwifi/mvm/led.c index 2269a9e5cc6..e3b3cf4dbd7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/led.c +++ b/drivers/net/wireless/iwlwifi/mvm/led.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -94,6 +94,8 @@ int iwl_mvm_leds_init(struct iwl_mvm *mvm) int ret; switch (mode) { + case IWL_LED_BLINK: + IWL_ERR(mvm, "Blink led mode not supported, used default\n"); case IWL_LED_DEFAULT: case IWL_LED_RF_STATE: mode = IWL_LED_RF_STATE; @@ -103,7 +105,7 @@ int iwl_mvm_leds_init(struct iwl_mvm *mvm) return 0; default: return -EINVAL; - }; + } mvm->led.name = kasprintf(GFP_KERNEL, "%s-led", wiphy_name(mvm->hw->wiphy)); diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c index b2cc3d98e0f..8b79081d488 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -69,10 +69,10 @@ #include "mvm.h" const u8 iwl_mvm_ac_to_tx_fifo[] = { - IWL_MVM_TX_FIFO_BK, - IWL_MVM_TX_FIFO_BE, - IWL_MVM_TX_FIFO_VI, IWL_MVM_TX_FIFO_VO, + IWL_MVM_TX_FIFO_VI, + IWL_MVM_TX_FIFO_BE, + IWL_MVM_TX_FIFO_BK, }; struct iwl_mvm_mac_iface_iterator_data { @@ -80,40 +80,21 @@ struct iwl_mvm_mac_iface_iterator_data { struct ieee80211_vif *vif; unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)]; unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)]; - unsigned long used_hw_queues[BITS_TO_LONGS(IWL_MVM_FIRST_AGG_QUEUE)]; + unsigned long used_hw_queues[BITS_TO_LONGS(IWL_MVM_MAX_QUEUES)]; enum iwl_tsf_id preferred_tsf; bool found_vif; }; -static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, - struct ieee80211_vif *vif) +static void iwl_mvm_mac_tsf_id_iter(void *_data, u8 *mac, + struct ieee80211_vif *vif) { struct iwl_mvm_mac_iface_iterator_data *data = _data; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - u32 ac; + u16 min_bi; - /* Iterator may already find the interface being added -- skip it */ - if (vif == data->vif) { - data->found_vif = true; + /* Skip the interface for which we are trying to assign a tsf_id */ + if (vif == data->vif) return; - } - - /* Mark the queues used by the vif */ - for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) - if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) - __set_bit(vif->hw_queue[ac], data->used_hw_queues); - - if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) - __set_bit(vif->cab_queue, data->used_hw_queues); - - /* - * Mark MAC IDs as used by clearing the available bit, and - * (below) mark TSFs as used if their existing use is not - * compatible with the new interface type. - * No locking or atomic bit operations are needed since the - * data is on the stack of the caller function. - */ - __clear_bit(mvmvif->id, data->available_mac_ids); /* * The TSF is a hardware/firmware resource, there are 4 and @@ -134,33 +115,56 @@ static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, switch (data->vif->type) { case NL80211_IFTYPE_STATION: /* - * The new interface is client, so if the existing one - * we're iterating is an AP, the TSF should be used to - * avoid drift between the new client and existing AP, - * the existing AP will get drift updates from the new - * client context in this case + * The new interface is a client, so if the one we're iterating + * is an AP, and the beacon interval of the AP is a multiple or + * divisor of the beacon interval of the client, the same TSF + * should be used to avoid drift between the new client and + * existing AP. The existing AP will get drift updates from the + * new client context in this case. */ - if (vif->type == NL80211_IFTYPE_AP) { - if (data->preferred_tsf == NUM_TSF_IDS && - test_bit(mvmvif->tsf_id, data->available_tsf_ids)) - data->preferred_tsf = mvmvif->tsf_id; + if (vif->type != NL80211_IFTYPE_AP || + data->preferred_tsf != NUM_TSF_IDS || + !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) + break; + + min_bi = min(data->vif->bss_conf.beacon_int, + vif->bss_conf.beacon_int); + + if (!min_bi) + break; + + if ((data->vif->bss_conf.beacon_int - + vif->bss_conf.beacon_int) % min_bi == 0) { + data->preferred_tsf = mvmvif->tsf_id; return; } break; + case NL80211_IFTYPE_AP: /* - * The new interface is AP/GO, so should get drift - * updates from an existing client or use the same - * TSF as an existing GO. There's no drift between - * TSFs internally but if they used different TSFs - * then a new client MAC could update one of them - * and cause drift that way. + * The new interface is AP/GO, so if its beacon interval is a + * multiple or a divisor of the beacon interval of an existing + * interface, it should get drift updates from an existing + * client or use the same TSF as an existing GO. There's no + * drift between TSFs internally but if they used different + * TSFs then a new client MAC could update one of them and + * cause drift that way. */ - if (vif->type == NL80211_IFTYPE_STATION || - vif->type == NL80211_IFTYPE_AP) { - if (data->preferred_tsf == NUM_TSF_IDS && - test_bit(mvmvif->tsf_id, data->available_tsf_ids)) - data->preferred_tsf = mvmvif->tsf_id; + if ((vif->type != NL80211_IFTYPE_AP && + vif->type != NL80211_IFTYPE_STATION) || + data->preferred_tsf != NUM_TSF_IDS || + !test_bit(mvmvif->tsf_id, data->available_tsf_ids)) + break; + + min_bi = min(data->vif->bss_conf.beacon_int, + vif->bss_conf.beacon_int); + + if (!min_bi) + break; + + if ((data->vif->bss_conf.beacon_int - + vif->bss_conf.beacon_int) % min_bi == 0) { + data->preferred_tsf = mvmvif->tsf_id; return; } break; @@ -187,20 +191,50 @@ static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, data->preferred_tsf = NUM_TSF_IDS; } +static void iwl_mvm_mac_iface_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_mac_iface_iterator_data *data = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + u32 ac; + + /* Iterator may already find the interface being added -- skip it */ + if (vif == data->vif) { + data->found_vif = true; + return; + } + + /* Mark the queues used by the vif */ + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) + if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) + __set_bit(vif->hw_queue[ac], data->used_hw_queues); + + if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) + __set_bit(vif->cab_queue, data->used_hw_queues); + + /* Mark MAC IDs as used by clearing the available bit, and + * (below) mark TSFs as used if their existing use is not + * compatible with the new interface type. + * No locking or atomic bit operations are needed since the + * data is on the stack of the caller function. + */ + __clear_bit(mvmvif->id, data->available_mac_ids); + + /* find a suitable tsf_id */ + iwl_mvm_mac_tsf_id_iter(_data, mac, vif); +} + /* * Get the mask of the queus used by the vif */ u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { - u32 qmask, ac; + u32 qmask = 0, ac; if (vif->type == NL80211_IFTYPE_P2P_DEVICE) return BIT(IWL_MVM_OFFCHANNEL_QUEUE); - qmask = (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) ? - BIT(vif->cab_queue) : 0; - for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE) qmask |= BIT(vif->hw_queue[ac]); @@ -208,6 +242,29 @@ u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm, return qmask; } +void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm_mac_iface_iterator_data data = { + .mvm = mvm, + .vif = vif, + .available_tsf_ids = { (1 << NUM_TSF_IDS) - 1 }, + /* no preference yet */ + .preferred_tsf = NUM_TSF_IDS, + }; + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, + iwl_mvm_mac_tsf_id_iter, &data); + + if (data.preferred_tsf != NUM_TSF_IDS) + mvmvif->tsf_id = data.preferred_tsf; + else if (!test_bit(mvmvif->tsf_id, data.available_tsf_ids)) + mvmvif->tsf_id = find_first_bit(data.available_tsf_ids, + NUM_TSF_IDS); +} + static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { @@ -221,13 +278,13 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, .preferred_tsf = NUM_TSF_IDS, .used_hw_queues = { BIT(IWL_MVM_OFFCHANNEL_QUEUE) | - BIT(IWL_MVM_AUX_QUEUE) | + BIT(mvm->aux_queue) | BIT(IWL_MVM_CMD_QUEUE) }, .found_vif = false, }; u32 ac; - int ret; + int ret, i; /* * Allocate a MAC ID and a TSF for this MAC, along with the queues @@ -245,9 +302,17 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, * that we should share it with another interface. */ - /* Currently, MAC ID 0 should be used only for the managed vif */ - if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) + /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */ + switch (vif->type) { + case NL80211_IFTYPE_ADHOC: + break; + case NL80211_IFTYPE_STATION: + if (!vif->p2p) + break; + /* fall through */ + default: __clear_bit(0, data.available_mac_ids); + } ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, @@ -267,7 +332,8 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, return 0; /* Therefore, in recovery, we can't get here */ - WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); + if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))) + return -EBUSY; mvmvif->id = find_first_bit(data.available_mac_ids, NUM_MAC_INDEX_DRIVER); @@ -304,9 +370,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, /* Find available queues, and allocate them to the ACs */ for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { u8 queue = find_first_zero_bit(data.used_hw_queues, - IWL_MVM_FIRST_AGG_QUEUE); + mvm->first_agg_queue); - if (queue >= IWL_MVM_FIRST_AGG_QUEUE) { + if (queue >= mvm->first_agg_queue) { IWL_ERR(mvm, "Failed to allocate queue\n"); ret = -EIO; goto exit_fail; @@ -319,9 +385,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, /* Allocate the CAB queue for softAP and GO interfaces */ if (vif->type == NL80211_IFTYPE_AP) { u8 queue = find_first_zero_bit(data.used_hw_queues, - IWL_MVM_FIRST_AGG_QUEUE); + mvm->first_agg_queue); - if (queue >= IWL_MVM_FIRST_AGG_QUEUE) { + if (queue >= mvm->first_agg_queue) { IWL_ERR(mvm, "Failed to allocate cab queue\n"); ret = -EIO; goto exit_fail; @@ -335,6 +401,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm, mvmvif->bcast_sta.sta_id = IWL_MVM_STATION_COUNT; mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; + for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) + mvmvif->smps_requests[i] = IEEE80211_SMPS_AUTOMATIC; + return 0; exit_fail: @@ -362,7 +431,7 @@ int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif) break; case NL80211_IFTYPE_AP: iwl_trans_ac_txq_enable(mvm->trans, vif->cab_queue, - IWL_MVM_TX_FIFO_VO); + IWL_MVM_TX_FIFO_MCAST); /* fall through */ default: for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) @@ -479,6 +548,40 @@ static void iwl_mvm_ack_rates(struct iwl_mvm *mvm, *ofdm_rates = ofdm; } +static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_mac_ctx_cmd *cmd) +{ + /* for both sta and ap, ht_operation_mode hold the protection_mode */ + u8 protection_mode = vif->bss_conf.ht_operation_mode & + IEEE80211_HT_OP_MODE_PROTECTION; + /* The fw does not distinguish between ht and fat */ + u32 ht_flag = MAC_PROT_FLG_HT_PROT | MAC_PROT_FLG_FAT_PROT; + + IWL_DEBUG_RATE(mvm, "protection mode set to %d\n", protection_mode); + /* + * See section 9.23.3.1 of IEEE 80211-2012. + * Nongreenfield HT STAs Present is not supported. + */ + switch (protection_mode) { + case IEEE80211_HT_OP_MODE_PROTECTION_NONE: + break; + case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER: + case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED: + cmd->protection_flags |= cpu_to_le32(ht_flag); + break; + case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ: + /* Protect when channel wider than 20MHz */ + if (vif->bss_conf.chandef.width > NL80211_CHAN_WIDTH_20) + cmd->protection_flags |= cpu_to_le32(ht_flag); + break; + default: + IWL_ERR(mvm, "Illegal protection mode %d\n", + protection_mode); + break; + } +} + static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mac_ctx_cmd *cmd, @@ -486,6 +589,8 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct ieee80211_chanctx_conf *chanctx; + bool ht_enabled = !!(vif->bss_conf.ht_operation_mode & + IEEE80211_HT_OP_MODE_PROTECTION); u8 cck_ack_rates, ofdm_ack_rates; int i; @@ -541,31 +646,37 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, cpu_to_le32(vif->bss_conf.use_short_slot ? MAC_FLG_SHORT_SLOT : 0); - for (i = 0; i < AC_NUM; i++) { - cmd->ac[i].cw_min = cpu_to_le16(mvmvif->queue_params[i].cw_min); - cmd->ac[i].cw_max = cpu_to_le16(mvmvif->queue_params[i].cw_max); - cmd->ac[i].aifsn = mvmvif->queue_params[i].aifs; - cmd->ac[i].edca_txop = + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + u8 txf = iwl_mvm_ac_to_tx_fifo[i]; + + cmd->ac[txf].cw_min = + cpu_to_le16(mvmvif->queue_params[i].cw_min); + cmd->ac[txf].cw_max = + cpu_to_le16(mvmvif->queue_params[i].cw_max); + cmd->ac[txf].edca_txop = cpu_to_le16(mvmvif->queue_params[i].txop * 32); - cmd->ac[i].fifos_mask = BIT(iwl_mvm_ac_to_tx_fifo[i]); + cmd->ac[txf].aifsn = mvmvif->queue_params[i].aifs; + cmd->ac[txf].fifos_mask = BIT(txf); } + /* in AP mode, the MCAST FIFO takes the EDCA params from VO */ + if (vif->type == NL80211_IFTYPE_AP) + cmd->ac[IWL_MVM_TX_FIFO_VO].fifos_mask |= + BIT(IWL_MVM_TX_FIFO_MCAST); + if (vif->bss_conf.qos) cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA); - /* Don't use cts to self as the fw doesn't support it currently. */ if (vif->bss_conf.use_cts_prot) cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT); - /* - * I think that we should enable these 2 flags regardless the HT PROT - * fields in the HT IE, but I am not sure. Someone knows whom to ask?... - */ - if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { + IWL_DEBUG_RATE(mvm, "use_cts_prot %d, ht_operation_mode %d\n", + vif->bss_conf.use_cts_prot, + vif->bss_conf.ht_operation_mode); + if (vif->bss_conf.chandef.width != NL80211_CHAN_WIDTH_20_NOHT) cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_TGN); - cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_HT_PROT | - MAC_PROT_FLG_FAT_PROT); - } + if (ht_enabled) + iwl_mvm_mac_ctxt_set_ht_flags(mvm, vif, cmd); cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP); } @@ -573,7 +684,7 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm, static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, struct iwl_mac_ctx_cmd *cmd) { - int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, CMD_SYNC, + int ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, sizeof(*cmd), cmd); if (ret) IWL_ERR(mvm, "Failed to send MAC context (action:%d): %d\n", @@ -581,19 +692,39 @@ static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, return ret; } -/* - * Fill the specific data for mac context of type station or p2p client - */ -static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - struct iwl_mac_data_sta *ctxt_sta, - bool force_assoc_off) +static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 action, bool force_assoc_off) { + struct iwl_mac_ctx_cmd cmd = {}; + struct iwl_mac_data_sta *ctxt_sta; + + WARN_ON(vif->type != NL80211_IFTYPE_STATION); + + /* Fill the common data for all mac context types */ + iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); + + if (vif->p2p) { + struct ieee80211_p2p_noa_attr *noa = + &vif->bss_conf.p2p_noa_attr; + + cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & + IEEE80211_P2P_OPPPS_CTWINDOW_MASK); + ctxt_sta = &cmd.p2p_sta.sta; + } else { + ctxt_sta = &cmd.sta; + } + /* We need the dtim_period to set the MAC as associated */ if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && !force_assoc_off) { u32 dtim_offs; + /* Allow beacons to pass through as long as we are not + * associated, or we do not have dtim period information. + */ + cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); + /* * The DTIM count counts down, so when it is N that means N * more beacon intervals happen until the DTIM TBTT. Therefore @@ -640,70 +771,52 @@ static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm, ctxt_sta->listen_interval = cpu_to_le32(mvm->hw->conf.listen_interval); ctxt_sta->assoc_id = cpu_to_le32(vif->bss_conf.aid); -} - -static int iwl_mvm_mac_ctxt_cmd_station(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - u32 action) -{ - struct iwl_mac_ctx_cmd cmd = {}; - - WARN_ON(vif->type != NL80211_IFTYPE_STATION || vif->p2p); - - /* Fill the common data for all mac context types */ - iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); - - /* Allow beacons to pass through as long as we are not associated,or we - * do not have dtim period information */ - if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period) - cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_BEACON); - else - cmd.filter_flags &= ~cpu_to_le32(MAC_FILTER_IN_BEACON); - - /* Fill the data specific for station mode */ - iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta, - action == FW_CTXT_ACTION_ADD); return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); } -static int iwl_mvm_mac_ctxt_cmd_p2p_client(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - u32 action) +static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 action) { struct iwl_mac_ctx_cmd cmd = {}; - struct ieee80211_p2p_noa_attr *noa = &vif->bss_conf.p2p_noa_attr; - WARN_ON(vif->type != NL80211_IFTYPE_STATION || !vif->p2p); + WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); - /* Fill the common data for all mac context types */ iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); - /* Fill the data specific for station mode */ - iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta, - action == FW_CTXT_ACTION_ADD); - - cmd.p2p_sta.ctwin = cpu_to_le32(noa->oppps_ctwindow & - IEEE80211_P2P_OPPPS_CTWINDOW_MASK); + cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | + MAC_FILTER_IN_CONTROL_AND_MGMT | + MAC_FILTER_IN_BEACON | + MAC_FILTER_IN_PROBE_REQUEST | + MAC_FILTER_IN_CRC32); + mvm->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS; return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); } -static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - u32 action) +static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 action) { + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mac_ctx_cmd cmd = {}; - WARN_ON(vif->type != NL80211_IFTYPE_MONITOR); + WARN_ON(vif->type != NL80211_IFTYPE_ADHOC); iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); - cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC | - MAC_FILTER_IN_CONTROL_AND_MGMT | - MAC_FILTER_IN_BEACON | + cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON | MAC_FILTER_IN_PROBE_REQUEST); + /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */ + cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int); + cmd.ibss.bi_reciprocal = + cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int)); + + /* TODO: Assumes that the beacon id == mac context id */ + cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id); + return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); } @@ -716,7 +829,8 @@ static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) struct iwl_mvm_go_iterator_data *data = _data; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - if (vif->type == NL80211_IFTYPE_AP && vif->p2p && mvmvif->ap_active) + if (vif->type == NL80211_IFTYPE_AP && vif->p2p && + mvmvif->ap_ibss_active) data->go_active = true; } @@ -809,7 +923,7 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, TX_CMD_FLG_TSF); mvm->mgmt_last_antenna_idx = - iwl_mvm_next_antenna(mvm, iwl_fw_valid_tx_ant(mvm->fw), + iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant, mvm->mgmt_last_antenna_idx); beacon_cmd.tx.rate_n_flags = @@ -828,9 +942,10 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate)); /* Set up TX beacon command fields */ - iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd, - beacon->data, - beacon_skb_len); + if (vif->type == NL80211_IFTYPE_AP) + iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd, + beacon->data, + beacon_skb_len); /* Submit command */ cmd.len[0] = sizeof(beacon_cmd); @@ -843,14 +958,15 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, return iwl_mvm_send_cmd(mvm, &cmd); } -/* The beacon template for the AP/GO context has changed and needs update */ +/* The beacon template for the AP/GO/IBSS has changed and needs update */ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif) { struct sk_buff *beacon; int ret; - WARN_ON(vif->type != NL80211_IFTYPE_AP); + WARN_ON(vif->type != NL80211_IFTYPE_AP && + vif->type != NL80211_IFTYPE_ADHOC); beacon = ieee80211_beacon_get(mvm->hw, vif); if (!beacon) @@ -861,6 +977,30 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, return ret; } +struct iwl_mvm_mac_ap_iterator_data { + struct iwl_mvm *mvm; + struct ieee80211_vif *vif; + u32 beacon_device_ts; + u16 beacon_int; +}; + +/* Find the beacon_device_ts and beacon_int for a managed interface */ +static void iwl_mvm_mac_ap_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_mac_ap_iterator_data *data = _data; + + if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc) + return; + + /* Station client has higher priority over P2P client*/ + if (vif->p2p && data->beacon_device_ts) + return; + + data->beacon_device_ts = vif->bss_conf.sync_device_ts; + data->beacon_int = vif->bss_conf.beacon_int; +} + /* * Fill the specific data for mac context of type AP of P2P GO */ @@ -870,6 +1010,11 @@ static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, bool add) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mvm_mac_ap_iterator_data data = { + .mvm = mvm, + .vif = vif, + .beacon_device_ts = 0 + }; ctxt_ap->bi = cpu_to_le32(vif->bss_conf.beacon_int); ctxt_ap->bi_reciprocal = @@ -883,16 +1028,33 @@ static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm *mvm, ctxt_ap->mcast_qid = cpu_to_le32(vif->cab_queue); /* - * Only read the system time when the MAC is being added, when we + * Only set the beacon time when the MAC is being added, when we * just modify the MAC then we should keep the time -- the firmware * can otherwise have a "jumping" TBTT. */ - if (add) - mvmvif->ap_beacon_time = - iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG); + if (add) { + /* + * If there is a station/P2P client interface which is + * associated, set the AP's TBTT far enough from the station's + * TBTT. Otherwise, set it to the current system time + */ + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, + iwl_mvm_mac_ap_iterator, &data); + + if (data.beacon_device_ts) { + u32 rand = (prandom_u32() % (64 - 36)) + 36; + mvmvif->ap_beacon_time = data.beacon_device_ts + + ieee80211_tu_to_usec(data.beacon_int * rand / + 100); + } else { + mvmvif->ap_beacon_time = + iwl_read_prph(mvm->trans, + DEVICE_SYSTEM_TIME_REG); + } + } ctxt_ap->beacon_time = cpu_to_le32(mvmvif->ap_beacon_time); - ctxt_ap->beacon_tsf = 0; /* unused */ /* TODO: Assume that the beacon id == mac context id */ @@ -910,8 +1072,12 @@ static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm *mvm, /* Fill the common data for all mac context types */ iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); - /* Also enable probe requests to pass */ - cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST); + /* + * pass probe requests and beacons from other APs (needed + * for ht protection) + */ + cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST | + MAC_FILTER_IN_BEACON); /* Fill the data specific for ap mode */ iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd.ap, @@ -932,6 +1098,13 @@ static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, /* Fill the common data for all mac context types */ iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); + /* + * pass probe requests and beacons from other APs (needed + * for ht protection) + */ + cmd.filter_flags |= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST | + MAC_FILTER_IN_BEACON); + /* Fill the data specific for GO mode */ iwl_mvm_mac_ctxt_cmd_fill_ap(mvm, vif, &cmd.go.ap, action == FW_CTXT_ACTION_ADD); @@ -946,16 +1119,12 @@ static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm *mvm, } static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - u32 action) + u32 action, bool force_assoc_off) { switch (vif->type) { case NL80211_IFTYPE_STATION: - if (!vif->p2p) - return iwl_mvm_mac_ctxt_cmd_station(mvm, vif, - action); - else - return iwl_mvm_mac_ctxt_cmd_p2p_client(mvm, vif, - action); + return iwl_mvm_mac_ctxt_cmd_sta(mvm, vif, action, + force_assoc_off); break; case NL80211_IFTYPE_AP: if (!vif->p2p) @@ -967,6 +1136,8 @@ static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif, return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action); case NL80211_IFTYPE_P2P_DEVICE: return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action); + case NL80211_IFTYPE_ADHOC: + return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action); default: break; } @@ -983,15 +1154,20 @@ int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif) vif->addr, ieee80211_vif_type_p2p(vif))) return -EIO; - ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD); + ret = iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_ADD, + true); if (ret) return ret; + /* will only do anything at resume from D3 time */ + iwl_mvm_set_last_nonqos_seq(mvm, vif); + mvmvif->uploaded = true; return 0; } -int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool force_assoc_off) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); @@ -999,7 +1175,8 @@ int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif) vif->addr, ieee80211_vif_type_p2p(vif))) return -EIO; - return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY); + return iwl_mvm_mac_ctx_send(mvm, vif, FW_CTXT_ACTION_MODIFY, + force_assoc_off); } int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) @@ -1018,7 +1195,7 @@ int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) mvmvif->color)); cmd.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE); - ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, CMD_SYNC, + ret = iwl_mvm_send_cmd_pdu(mvm, MAC_CONTEXT_CMD, 0, sizeof(cmd), &cmd); if (ret) { IWL_ERR(mvm, "Failed to remove MAC context: %d\n", ret); @@ -1026,6 +1203,10 @@ int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) } mvmvif->uploaded = false; + + if (vif->type == NL80211_IFTYPE_MONITOR) + mvm->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS; + return 0; } @@ -1040,10 +1221,62 @@ int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, u32 rate __maybe_unused = le32_to_cpu(beacon->beacon_notify_hdr.initial_rate); + lockdep_assert_held(&mvm->mutex); + IWL_DEBUG_RX(mvm, "beacon status %#x retries:%d tsf:0x%16llX rate:%d\n", status & TX_STATUS_MSK, beacon->beacon_notify_hdr.failure_frame, le64_to_cpu(beacon->tsf), rate); + + if (unlikely(mvm->csa_vif && mvm->csa_vif->csa_active)) { + if (!ieee80211_csa_is_complete(mvm->csa_vif)) { + iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm->csa_vif); + } else { + ieee80211_csa_finish(mvm->csa_vif); + mvm->csa_vif = NULL; + } + } + + return 0; +} + +static void iwl_mvm_beacon_loss_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_missed_beacons_notif *missed_beacons = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (mvmvif->id != (u16)le32_to_cpu(missed_beacons->mac_id)) + return; + + /* + * TODO: the threshold should be adjusted based on latency conditions, + * and/or in case of a CS flow on one of the other AP vifs. + */ + if (le32_to_cpu(missed_beacons->consec_missed_beacons_since_last_rx) > + IWL_MVM_MISSED_BEACONS_THRESHOLD) + ieee80211_beacon_loss(vif); +} + +int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_missed_beacons_notif *mb = (void *)pkt->data; + + IWL_DEBUG_INFO(mvm, + "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n", + le32_to_cpu(mb->mac_id), + le32_to_cpu(mb->consec_missed_beacons), + le32_to_cpu(mb->consec_missed_beacons_since_last_rx), + le32_to_cpu(mb->num_recvd_beacons), + le32_to_cpu(mb->num_expected_beacons)); + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_beacon_loss_iterator, + mb); return 0; } diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index a5eb8c82f16..98556d03c1e 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -66,7 +66,9 @@ #include <linux/netdevice.h> #include <linux/etherdevice.h> #include <linux/ip.h> +#include <linux/if_arp.h> #include <net/mac80211.h> +#include <net/ieee80211_radiotap.h> #include <net/tcp.h> #include "iwl-op-mode.h" @@ -77,16 +79,17 @@ #include "iwl-eeprom-parse.h" #include "fw-api-scan.h" #include "iwl-phy-db.h" +#include "testmode.h" static const struct ieee80211_iface_limit iwl_mvm_limits[] = { { .max = 1, - .types = BIT(NL80211_IFTYPE_STATION) | - BIT(NL80211_IFTYPE_AP), + .types = BIT(NL80211_IFTYPE_STATION), }, { .max = 1, - .types = BIT(NL80211_IFTYPE_P2P_CLIENT) | + .types = BIT(NL80211_IFTYPE_AP) | + BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_P2P_GO), }, { @@ -127,6 +130,136 @@ static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = { }; #endif +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING +/* + * Use the reserved field to indicate magic values. + * these values will only be used internally by the driver, + * and won't make it to the fw (reserved will be 0). + * BC_FILTER_MAGIC_IP - configure the val of this attribute to + * be the vif's ip address. in case there is not a single + * ip address (0, or more than 1), this attribute will + * be skipped. + * BC_FILTER_MAGIC_MAC - set the val of this attribute to + * the LSB bytes of the vif's mac address + */ +enum { + BC_FILTER_MAGIC_NONE = 0, + BC_FILTER_MAGIC_IP, + BC_FILTER_MAGIC_MAC, +}; + +static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = { + { + /* arp */ + .discard = 0, + .frame_type = BCAST_FILTER_FRAME_TYPE_ALL, + .attrs = { + { + /* frame type - arp, hw type - ethernet */ + .offset_type = + BCAST_FILTER_OFFSET_PAYLOAD_START, + .offset = sizeof(rfc1042_header), + .val = cpu_to_be32(0x08060001), + .mask = cpu_to_be32(0xffffffff), + }, + { + /* arp dest ip */ + .offset_type = + BCAST_FILTER_OFFSET_PAYLOAD_START, + .offset = sizeof(rfc1042_header) + 2 + + sizeof(struct arphdr) + + ETH_ALEN + sizeof(__be32) + + ETH_ALEN, + .mask = cpu_to_be32(0xffffffff), + /* mark it as special field */ + .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP), + }, + }, + }, + { + /* dhcp offer bcast */ + .discard = 0, + .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4, + .attrs = { + { + /* udp dest port - 68 (bootp client)*/ + .offset_type = BCAST_FILTER_OFFSET_IP_END, + .offset = offsetof(struct udphdr, dest), + .val = cpu_to_be32(0x00440000), + .mask = cpu_to_be32(0xffff0000), + }, + { + /* dhcp - lsb bytes of client hw address */ + .offset_type = BCAST_FILTER_OFFSET_IP_END, + .offset = 38, + .mask = cpu_to_be32(0xffffffff), + /* mark it as special field */ + .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC), + }, + }, + }, + /* last filter must be empty */ + {}, +}; +#endif + +void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) +{ + if (!iwl_mvm_is_d0i3_supported(mvm)) + return; + + IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type); + WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap)); + iwl_trans_ref(mvm->trans); +} + +void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type) +{ + if (!iwl_mvm_is_d0i3_supported(mvm)) + return; + + IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type); + WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap)); + iwl_trans_unref(mvm->trans); +} + +static void +iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref) +{ + int i; + + if (!iwl_mvm_is_d0i3_supported(mvm)) + return; + + for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) { + if (ref == i) + continue; + + IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i); + clear_bit(i, mvm->ref_bitmap); + iwl_trans_unref(mvm->trans); + } +} + +static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm) +{ + int i; + + memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts)); + for (i = 0; i < NUM_PHY_CTX; i++) { + mvm->phy_ctxts[i].id = i; + mvm->phy_ctxts[i].ref = 0; + } +} + +static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm) +{ + /* we create the 802.11 header and SSID element */ + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID) + return mvm->fw->ucode_capa.max_probe_length - 24 - 2; + return mvm->fw->ucode_capa.max_probe_length - 24 - 34; +} + int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) { struct ieee80211_hw *hw = mvm->hw; @@ -141,10 +274,16 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) IEEE80211_HW_SUPPORTS_PS | IEEE80211_HW_SUPPORTS_DYNAMIC_PS | IEEE80211_HW_AMPDU_AGGREGATION | - IEEE80211_HW_TIMING_BEACON_ONLY; + IEEE80211_HW_TIMING_BEACON_ONLY | + IEEE80211_HW_CONNECTION_MONITOR | + IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS | + IEEE80211_HW_SUPPORTS_STATIC_SMPS; - hw->queues = IWL_MVM_FIRST_AGG_QUEUE; + hw->queues = mvm->first_agg_queue; hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE; + hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC | + IEEE80211_RADIOTAP_MCS_HAVE_STBC; + hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC; hw->rate_control_algorithm = "iwl-mvm-rs"; /* @@ -156,19 +295,34 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) !iwlwifi_mod_params.sw_crypto) hw->flags |= IEEE80211_HW_MFP_CAPABLE; + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT && + IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 && + !iwlwifi_mod_params.uapsd_disable) { + hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD; + hw->uapsd_queues = IWL_UAPSD_AC_INFO; + hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP; + } + hw->sta_data_size = sizeof(struct iwl_mvm_sta); hw->vif_data_size = sizeof(struct iwl_mvm_vif); - hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt); + hw->chanctx_data_size = sizeof(u16); hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_P2P_CLIENT) | BIT(NL80211_IFTYPE_AP) | BIT(NL80211_IFTYPE_P2P_GO) | - BIT(NL80211_IFTYPE_P2P_DEVICE); + BIT(NL80211_IFTYPE_P2P_DEVICE) | + BIT(NL80211_IFTYPE_ADHOC); + + hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN; + hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | + REGULATORY_DISABLE_BEACON_HINTS; - hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY | - WIPHY_FLAG_DISABLE_BEACON_HINTS | - WIPHY_FLAG_IBSS_RSN; + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD) + hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD; + + if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW) + hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH; hw->wiphy->iface_combinations = iwl_mvm_iface_combinations; hw->wiphy->n_iface_combinations = @@ -193,9 +347,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) hw->wiphy->n_addresses++; } - /* we create the 802.11 header and a max-length SSID element */ - hw->wiphy->max_scan_ie_len = - mvm->fw->ucode_capa.max_probe_length - 24 - 34; + iwl_mvm_reset_phy_ctxts(mvm); + + hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm); + hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX; if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels) @@ -212,38 +367,104 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) else hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT; + hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; + hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX; + hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES; + /* we create the 802.11 header and zero length SSID IE. */ + hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2; + hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN | NL80211_FEATURE_P2P_GO_OPPPS; mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD; + /* currently FW API supports only one optional cipher scheme */ + if (mvm->fw->cs[0].cipher) { + mvm->hw->n_cipher_schemes = 1; + mvm->hw->cipher_schemes = &mvm->fw->cs[0]; + } + #ifdef CONFIG_PM_SLEEP - if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && + if (iwl_mvm_is_d0i3_supported(mvm) && + device_can_wakeup(mvm->trans->dev)) { + mvm->wowlan.flags = WIPHY_WOWLAN_ANY; + hw->wiphy->wowlan = &mvm->wowlan; + } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len && mvm->trans->ops->d3_suspend && mvm->trans->ops->d3_resume && device_can_wakeup(mvm->trans->dev)) { - hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | - WIPHY_WOWLAN_DISCONNECT | - WIPHY_WOWLAN_EAP_IDENTITY_REQ | - WIPHY_WOWLAN_RFKILL_RELEASE; + mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | + WIPHY_WOWLAN_DISCONNECT | + WIPHY_WOWLAN_EAP_IDENTITY_REQ | + WIPHY_WOWLAN_RFKILL_RELEASE; if (!iwlwifi_mod_params.sw_crypto) - hw->wiphy->wowlan.flags |= - WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | - WIPHY_WOWLAN_GTK_REKEY_FAILURE | - WIPHY_WOWLAN_4WAY_HANDSHAKE; - - hw->wiphy->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; - hw->wiphy->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; - hw->wiphy->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; - hw->wiphy->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; + mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | + WIPHY_WOWLAN_GTK_REKEY_FAILURE | + WIPHY_WOWLAN_4WAY_HANDSHAKE; + + mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS; + mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN; + mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN; + mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support; + hw->wiphy->wowlan = &mvm->wowlan; } #endif +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING + /* assign default bcast filtering configuration */ + mvm->bcast_filters = iwl_mvm_default_bcast_filters; +#endif + ret = iwl_mvm_leds_init(mvm); if (ret) return ret; - return ieee80211_register_hw(mvm->hw); + ret = ieee80211_register_hw(mvm->hw); + if (ret) + iwl_mvm_leds_exit(mvm); + + return ret; +} + +static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + struct sk_buff *skb) +{ + struct iwl_mvm_sta *mvmsta; + bool defer = false; + + /* + * double check the IN_D0I3 flag both before and after + * taking the spinlock, in order to prevent taking + * the spinlock when not needed. + */ + if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))) + return false; + + spin_lock(&mvm->d0i3_tx_lock); + /* + * testing the flag again ensures the skb dequeue + * loop (on d0i3 exit) hasn't run yet. + */ + if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) + goto out; + + mvmsta = iwl_mvm_sta_from_mac80211(sta); + if (mvmsta->sta_id == IWL_MVM_STATION_COUNT || + mvmsta->sta_id != mvm->d0i3_ap_sta_id) + goto out; + + __skb_queue_tail(&mvm->d0i3_tx, skb); + ieee80211_stop_queues(mvm->hw); + + /* trigger wakeup */ + iwl_mvm_ref(mvm, IWL_MVM_REF_TX); + iwl_mvm_unref(mvm, IWL_MVM_REF_TX); + + defer = true; +out: + spin_unlock(&mvm->d0i3_tx_lock); + return defer; } static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, @@ -251,9 +472,12 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct ieee80211_sta *sta = control->sta; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); + struct ieee80211_hdr *hdr = (void *)skb->data; - if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) { - IWL_DEBUG_DROP(mvm, "Dropping - RF KILL\n"); + if (iwl_mvm_is_radio_killed(mvm)) { + IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n"); goto drop; } @@ -261,8 +485,18 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status)) goto drop; - if (control->sta) { - if (iwl_mvm_tx_skb(mvm, skb, control->sta)) + /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */ + if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER && + ieee80211_is_mgmt(hdr->frame_control) && + !ieee80211_is_deauth(hdr->frame_control) && + !ieee80211_is_disassoc(hdr->frame_control) && + !ieee80211_is_action(hdr->frame_control))) + sta = NULL; + + if (sta) { + if (iwl_mvm_defer_tx(mvm, sta, skb)) + return; + if (iwl_mvm_tx_skb(mvm, skb, sta)) goto drop; return; } @@ -274,6 +508,24 @@ static void iwl_mvm_mac_tx(struct ieee80211_hw *hw, ieee80211_free_txskb(hw, skb); } +static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg) +{ + if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) + return false; + return true; +} + +static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg) +{ + if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) + return false; + if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG) + return true; + + /* enabled by default */ + return true; +} + static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif, enum ieee80211_ampdu_mlme_action action, @@ -282,6 +534,7 @@ static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); int ret; + bool tx_agg_ref = false; IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n", sta->addr, tid, action); @@ -289,11 +542,40 @@ static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, if (!(mvm->nvm_data->sku_cap_11n_enable)) return -EACCES; + /* return from D0i3 before starting a new Tx aggregation */ + switch (action) { + case IEEE80211_AMPDU_TX_START: + case IEEE80211_AMPDU_TX_STOP_CONT: + case IEEE80211_AMPDU_TX_STOP_FLUSH: + case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT: + case IEEE80211_AMPDU_TX_OPERATIONAL: + iwl_mvm_ref(mvm, IWL_MVM_REF_TX_AGG); + tx_agg_ref = true; + + /* + * for tx start, wait synchronously until D0i3 exit to + * get the correct sequence number for the tid. + * additionally, some other ampdu actions use direct + * target access, which is not handled automatically + * by the trans layer (unlike commands), so wait for + * d0i3 exit in these cases as well. + */ + if (!wait_event_timeout(mvm->d0i3_exit_waitq, + !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), HZ)) { + WARN_ON_ONCE(1); + iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); + return -EIO; + } + break; + default: + break; + } + mutex_lock(&mvm->mutex); switch (action) { case IEEE80211_AMPDU_RX_START: - if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) { + if (!iwl_enable_rx_ampdu(mvm->cfg)) { ret = -EINVAL; break; } @@ -303,7 +585,7 @@ static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false); break; case IEEE80211_AMPDU_TX_START: - if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) { + if (!iwl_enable_tx_ampdu(mvm->cfg)) { ret = -EINVAL; break; } @@ -326,6 +608,13 @@ static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw, } mutex_unlock(&mvm->mutex); + /* + * If the tid is marked as started, we won't use it for offloaded + * traffic on the next D0i3 entry. It's safe to unref. + */ + if (tx_agg_ref) + iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG); + return ret; } @@ -345,14 +634,21 @@ static void iwl_mvm_cleanup_iterator(void *data, u8 *mac, iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data); spin_unlock_bh(&mvm->time_event_lock); - if (vif->type != NL80211_IFTYPE_P2P_DEVICE) - mvmvif->phy_ctxt = NULL; + mvmvif->phy_ctxt = NULL; } static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) { +#ifdef CONFIG_IWLWIFI_DEBUGFS + static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL }; + + iwl_mvm_fw_error_dump(mvm); + + /* notify the userspace about the error we had */ + kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env); +#endif + iwl_trans_stop_device(mvm->trans); - iwl_trans_stop_hw(mvm->trans, false); mvm->scan_status = IWL_MVM_SCAN_NONE; @@ -363,12 +659,21 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm) mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL, iwl_mvm_cleanup_iterator, mvm); + mvm->p2p_device_vif = NULL; + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; + + iwl_mvm_reset_phy_ctxts(mvm); memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained)); ieee80211_wake_queues(mvm->hw); + /* cleanup all stale references (scan, roc), but keep the + * ucode_down ref until reconfig is complete */ + iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN); + mvm->vif_count = 0; + mvm->rx_ba_sessions = 0; } static int iwl_mvm_mac_start(struct ieee80211_hw *hw) @@ -396,11 +701,15 @@ static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw) mutex_lock(&mvm->mutex); clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); + iwl_mvm_d0i3_enable_tx(mvm, NULL); ret = iwl_mvm_update_quotas(mvm, NULL); if (ret) IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n", ret); + /* allow transport/FW low power modes */ + iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN); + mutex_unlock(&mvm->mutex); } @@ -408,9 +717,14 @@ static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + flush_work(&mvm->d0i3_exit_work); flush_work(&mvm->async_handlers_wk); mutex_lock(&mvm->mutex); + + /* disallow low power states when the FW is down */ + iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); + /* async_handlers_wk is now blocked */ /* @@ -420,7 +734,6 @@ static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) cancel_work_sync(&mvm->roc_done_wk); iwl_trans_stop_device(mvm->trans); - iwl_trans_stop_hw(mvm->trans, false); iwl_mvm_async_handlers_purge(mvm); /* async_handlers_list is empty and will stay empty: HW is stopped */ @@ -437,23 +750,32 @@ static void iwl_mvm_mac_stop(struct ieee80211_hw *hw) cancel_work_sync(&mvm->async_handlers_wk); } -static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac, - struct ieee80211_vif *vif) +static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm) { - struct iwl_mvm *mvm = data; - int ret; + u16 i; - ret = iwl_mvm_power_disable(mvm, vif); - if (ret) - IWL_ERR(mvm, "failed to disable power management\n"); + lockdep_assert_held(&mvm->mutex); + + for (i = 0; i < NUM_PHY_CTX; i++) + if (!mvm->phy_ctxts[i].ref) + return &mvm->phy_ctxts[i]; + + IWL_ERR(mvm, "No available PHY context\n"); + return NULL; } -static void iwl_mvm_power_update_iterator(void *data, u8 *mac, - struct ieee80211_vif *vif) +static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + s8 tx_power) { - struct iwl_mvm *mvm = data; + /* FW is in charge of regulatory enforcement */ + struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = { + .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id, + .pwr_restriction = cpu_to_le16(tx_power), + }; - iwl_mvm_power_update_mode(mvm, vif); + return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, + sizeof(reduce_txpwr_cmd), + &reduce_txpwr_cmd); } static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, @@ -471,11 +793,15 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); - /* Allocate resources for the MAC context, and add it the the fw */ + /* Allocate resources for the MAC context, and add it to the fw */ ret = iwl_mvm_mac_ctxt_init(mvm, vif); if (ret) goto out_unlock; + /* Counting number of interfaces is needed for legacy PM */ + if (vif->type != NL80211_IFTYPE_P2P_DEVICE) + mvm->vif_count++; + /* * The AP binding flow can be done only after the beacon * template is configured (which happens only in the mac80211 @@ -487,48 +813,40 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, * In short: there's not much we can do at this point, other than * allocating resources :) */ - if (vif->type == NL80211_IFTYPE_AP) { + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC) { u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta, - qmask); + qmask, + ieee80211_vif_type_p2p(vif)); if (ret) { IWL_ERR(mvm, "Failed to allocate bcast sta\n"); goto out_release; } + iwl_mvm_vif_dbgfs_register(mvm, vif); goto out_unlock; } - /* - * TODO: remove this temporary code. - * Currently MVM FW supports power management only on single MAC. - * If new interface added, disable PM on existing interface. - * P2P device is a special case, since it is handled by FW similary to - * scan. If P2P deviced is added, PM remains enabled on existing - * interface. - * Note: the method below does not count the new interface being added - * at this moment. - */ - if (vif->type != NL80211_IFTYPE_P2P_DEVICE) - mvm->vif_count++; - if (mvm->vif_count > 1) { - IWL_DEBUG_MAC80211(mvm, - "Disable power on existing interfaces\n"); - ieee80211_iterate_active_interfaces_atomic( - mvm->hw, - IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_pm_disable_iterator, mvm); - } - ret = iwl_mvm_mac_ctxt_add(mvm, vif); if (ret) goto out_release; - /* - * Update power state on the new interface. Admittedly, based on - * mac80211 logics this power update will disable power management - */ - iwl_mvm_power_update_mode(mvm, vif); + ret = iwl_mvm_power_update_mac(mvm); + if (ret) + goto out_release; + + /* beacon filtering */ + ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0); + if (ret) + goto out_remove_mac; + + if (!mvm->bf_allowed_vif && + vif->type == NL80211_IFTYPE_STATION && !vif->p2p) { + mvm->bf_allowed_vif = mvmvif; + vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER | + IEEE80211_VIF_SUPPORTS_CQM_RSSI; + } /* * P2P_DEVICE interface does not have a channel context assigned to it, @@ -536,26 +854,17 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, * MAC context is bound to it at this stage. */ if (vif->type == NL80211_IFTYPE_P2P_DEVICE) { - struct ieee80211_channel *chan; - struct cfg80211_chan_def chandef; - - mvmvif->phy_ctxt = &mvm->phy_ctxt_roc; - /* - * The channel used here isn't relevant as it's - * going to be overwritten as part of the ROC flow. - * For now use the first channel we have. - */ - chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0]; - cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT); - ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, - &chandef, 1, 1); - if (ret) - goto out_remove_mac; + mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); + if (!mvmvif->phy_ctxt) { + ret = -ENOSPC; + goto out_free_bf; + } + iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); ret = iwl_mvm_binding_add_vif(mvm, vif); if (ret) - goto out_remove_phy; + goto out_unref_phy; ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta); if (ret) @@ -571,27 +880,21 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw, out_unbind: iwl_mvm_binding_remove_vif(mvm, vif); - out_remove_phy: - iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt); + out_unref_phy: + iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); + out_free_bf: + if (mvm->bf_allowed_vif == mvmvif) { + mvm->bf_allowed_vif = NULL; + vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | + IEEE80211_VIF_SUPPORTS_CQM_RSSI); + } out_remove_mac: mvmvif->phy_ctxt = NULL; iwl_mvm_mac_ctxt_remove(mvm, vif); out_release: - /* - * TODO: remove this temporary code. - * Currently MVM FW supports power management only on single MAC. - * Check if only one additional interface remains after releasing - * current one. Update power mode on the remaining interface. - */ if (vif->type != NL80211_IFTYPE_P2P_DEVICE) mvm->vif_count--; - IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", - mvm->vif_count); - if (mvm->vif_count == 1) { - ieee80211_iterate_active_interfaces( - mvm->hw, IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_power_update_iterator, mvm); - } + iwl_mvm_mac_ctxt_release(mvm, vif); out_unlock: mutex_unlock(&mvm->mutex); @@ -629,8 +932,7 @@ static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm, * By now, all the AC queues are empty. The AGG queues are * empty too. We already got all the Tx responses for all the * packets in the queues. The drain work can have been - * triggered. Flush it. This work item takes the mutex, so kill - * it before we take it. + * triggered. Flush it. */ flush_work(&mvm->sta_drained_wk); } @@ -646,13 +948,26 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); + if (mvm->bf_allowed_vif == mvmvif) { + mvm->bf_allowed_vif = NULL; + vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER | + IEEE80211_VIF_SUPPORTS_CQM_RSSI); + } + iwl_mvm_vif_dbgfs_clean(mvm, vif); /* * For AP/GO interface, the tear down of the resources allocated to the * interface is be handled as part of the stop_ap flow. */ - if (vif->type == NL80211_IFTYPE_AP) { + if (vif->type == NL80211_IFTYPE_AP || + vif->type == NL80211_IFTYPE_ADHOC) { +#ifdef CONFIG_NL80211_TESTMODE + if (vif == mvm->noa_vif) { + mvm->noa_vif = NULL; + mvm->noa_duration = 0; + } +#endif iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta); goto out_release; } @@ -661,26 +976,14 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw, mvm->p2p_device_vif = NULL; iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta); iwl_mvm_binding_remove_vif(mvm, vif); - iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt); + iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); mvmvif->phy_ctxt = NULL; } - /* - * TODO: remove this temporary code. - * Currently MVM FW supports power management only on single MAC. - * Check if only one additional interface remains after removing - * current one. Update power mode on the remaining interface. - */ if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE) mvm->vif_count--; - IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", - mvm->vif_count); - if (mvm->vif_count == 1) { - ieee80211_iterate_active_interfaces( - mvm->hw, IEEE80211_IFACE_ITER_NORMAL, - iwl_mvm_power_update_iterator, mvm); - } + iwl_mvm_power_update_mac(mvm); iwl_mvm_mac_ctxt_remove(mvm, vif); out_release: @@ -693,27 +996,264 @@ static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed) return 0; } +struct iwl_mvm_mc_iter_data { + struct iwl_mvm *mvm; + int port_id; +}; + +static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_mc_iter_data *data = _data; + struct iwl_mvm *mvm = data->mvm; + struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd; + int ret, len; + + /* if we don't have free ports, mcast frames will be dropped */ + if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM)) + return; + + if (vif->type != NL80211_IFTYPE_STATION || + !vif->bss_conf.assoc) + return; + + cmd->port_id = data->port_id++; + memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN); + len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4); + + ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd); + if (ret) + IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret); +} + +static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm) +{ + struct iwl_mvm_mc_iter_data iter_data = { + .mvm = mvm, + }; + + lockdep_assert_held(&mvm->mutex); + + if (WARN_ON_ONCE(!mvm->mcast_filter_cmd)) + return; + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_mc_iface_iterator, &iter_data); +} + +static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw, + struct netdev_hw_addr_list *mc_list) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct iwl_mcast_filter_cmd *cmd; + struct netdev_hw_addr *addr; + int addr_count = netdev_hw_addr_list_count(mc_list); + bool pass_all = false; + int len; + + if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) { + pass_all = true; + addr_count = 0; + } + + len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4); + cmd = kzalloc(len, GFP_ATOMIC); + if (!cmd) + return 0; + + if (pass_all) { + cmd->pass_all = 1; + return (u64)(unsigned long)cmd; + } + + netdev_hw_addr_list_for_each(addr, mc_list) { + IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n", + cmd->count, addr->addr); + memcpy(&cmd->addr_list[cmd->count * ETH_ALEN], + addr->addr, ETH_ALEN); + cmd->count++; + } + + return (u64)(unsigned long)cmd; +} + static void iwl_mvm_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags, unsigned int *total_flags, u64 multicast) { + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast; + + mutex_lock(&mvm->mutex); + + /* replace previous configuration */ + kfree(mvm->mcast_filter_cmd); + mvm->mcast_filter_cmd = cmd; + + if (!cmd) + goto out; + + iwl_mvm_recalc_multicast(mvm); +out: + mutex_unlock(&mvm->mutex); *total_flags = 0; } -static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm, +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING +struct iwl_bcast_iter_data { + struct iwl_mvm *mvm; + struct iwl_bcast_filter_cmd *cmd; + u8 current_filter; +}; + +static void +iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif, + const struct iwl_fw_bcast_filter *in_filter, + struct iwl_fw_bcast_filter *out_filter) +{ + struct iwl_fw_bcast_filter_attr *attr; + int i; + + memcpy(out_filter, in_filter, sizeof(*out_filter)); + + for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) { + attr = &out_filter->attrs[i]; + + if (!attr->mask) + break; + + switch (attr->reserved1) { + case cpu_to_le16(BC_FILTER_MAGIC_IP): + if (vif->bss_conf.arp_addr_cnt != 1) { + attr->mask = 0; + continue; + } + + attr->val = vif->bss_conf.arp_addr_list[0]; + break; + case cpu_to_le16(BC_FILTER_MAGIC_MAC): + attr->val = *(__be32 *)&vif->addr[2]; + break; + default: + break; + } + attr->reserved1 = 0; + out_filter->num_attrs++; + } +} + +static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif) { - struct iwl_mcast_filter_cmd mcast_filter_cmd = { - .pass_all = 1, + struct iwl_bcast_iter_data *data = _data; + struct iwl_mvm *mvm = data->mvm; + struct iwl_bcast_filter_cmd *cmd = data->cmd; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_fw_bcast_mac *bcast_mac; + int i; + + if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs))) + return; + + bcast_mac = &cmd->macs[mvmvif->id]; + + /* + * enable filtering only for associated stations, but not for P2P + * Clients + */ + if (vif->type != NL80211_IFTYPE_STATION || vif->p2p || + !vif->bss_conf.assoc) + return; + + bcast_mac->default_discard = 1; + + /* copy all configured filters */ + for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) { + /* + * Make sure we don't exceed our filters limit. + * if there is still a valid filter to be configured, + * be on the safe side and just allow bcast for this mac. + */ + if (WARN_ON_ONCE(data->current_filter >= + ARRAY_SIZE(cmd->filters))) { + bcast_mac->default_discard = 0; + bcast_mac->attached_filters = 0; + break; + } + + iwl_mvm_set_bcast_filter(vif, + &mvm->bcast_filters[i], + &cmd->filters[data->current_filter]); + + /* skip current filter if it contains no attributes */ + if (!cmd->filters[data->current_filter].num_attrs) + continue; + + /* attach the filter to current mac */ + bcast_mac->attached_filters |= + cpu_to_le16(BIT(data->current_filter)); + + data->current_filter++; + } +} + +bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, + struct iwl_bcast_filter_cmd *cmd) +{ + struct iwl_bcast_iter_data iter_data = { + .mvm = mvm, + .cmd = cmd, }; - memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN); + memset(cmd, 0, sizeof(*cmd)); + cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters); + cmd->max_macs = ARRAY_SIZE(cmd->macs); + +#ifdef CONFIG_IWLWIFI_DEBUGFS + /* use debugfs filters/macs if override is configured */ + if (mvm->dbgfs_bcast_filtering.override) { + memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters, + sizeof(cmd->filters)); + memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs, + sizeof(cmd->macs)); + return true; + } +#endif + + /* if no filters are configured, do nothing */ + if (!mvm->bcast_filters) + return false; + + /* configure and attach these filters for each associated sta vif */ + ieee80211_iterate_active_interfaces( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_bcast_filter_iterator, &iter_data); + + return true; +} +static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + struct iwl_bcast_filter_cmd cmd; - return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, - sizeof(mcast_filter_cmd), - &mcast_filter_cmd); + if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING)) + return 0; + + if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd)) + return 0; + + return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0, + sizeof(cmd), &cmd); +} +#else +static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + return 0; } +#endif static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, struct ieee80211_vif *vif, @@ -723,7 +1263,15 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); int ret; - ret = iwl_mvm_mac_ctxt_changed(mvm, vif); + /* + * Re-calculate the tsf id, as the master-slave relations depend on the + * beacon interval, which was not known when the station interface was + * added. + */ + if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) + iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); + + ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); if (ret) IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); @@ -735,44 +1283,107 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm, IWL_ERR(mvm, "failed to update quotas\n"); return; } - iwl_mvm_bt_coex_vif_assoc(mvm, vif); - iwl_mvm_configure_mcast_filter(mvm, vif); + + if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, + &mvm->status)) { + /* + * If we're restarting then the firmware will + * obviously have lost synchronisation with + * the AP. It will attempt to synchronise by + * itself, but we can make it more reliable by + * scheduling a session protection time event. + * + * The firmware needs to receive a beacon to + * catch up with synchronisation, use 110% of + * the beacon interval. + * + * Set a large maximum delay to allow for more + * than a single interface. + */ + u32 dur = (11 * vif->bss_conf.beacon_int) / 10; + iwl_mvm_protect_session(mvm, vif, dur, dur, + 5 * dur); + } + + iwl_mvm_sf_update(mvm, vif, false); + iwl_mvm_power_vif_assoc(mvm, vif); + if (vif->p2p) + iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT); } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) { + /* + * If update fails - SF might be running in associated + * mode while disassociated - which is forbidden. + */ + WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false), + "Failed to update SF upon disassociation\n"); + /* remove AP station now that the MAC is unassoc */ ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id); if (ret) IWL_ERR(mvm, "failed to remove AP station\n"); + + if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; /* remove quota for this interface */ ret = iwl_mvm_update_quotas(mvm, NULL); if (ret) IWL_ERR(mvm, "failed to update quotas\n"); + + if (vif->p2p) + iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT); } - } else if (changes & BSS_CHANGED_DTIM_PERIOD) { + + iwl_mvm_recalc_multicast(mvm); + iwl_mvm_configure_bcast_filter(mvm, vif); + + /* reset rssi values */ + mvmvif->bf_data.ave_beacon_signal = 0; + + iwl_mvm_bt_coex_vif_change(mvm); + iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, + IEEE80211_SMPS_AUTOMATIC); + } else if (changes & BSS_CHANGED_BEACON_INFO) { /* * We received a beacon _after_ association so * remove the session protection. */ iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); - } else if (changes & BSS_CHANGED_PS) { - /* - * TODO: remove this temporary code. - * Currently MVM FW supports power management only on single - * MAC. Avoid power mode update if more than one interface - * is active. - */ - IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n", - mvm->vif_count); - if (mvm->vif_count == 1) { - ret = iwl_mvm_power_update_mode(mvm, vif); + iwl_mvm_sf_update(mvm, vif, false); + WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); + } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | + BSS_CHANGED_QOS)) { + ret = iwl_mvm_power_update_mac(mvm); + if (ret) + IWL_ERR(mvm, "failed to update power mode\n"); + } + if (changes & BSS_CHANGED_TXPOWER) { + IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n", + bss_conf->txpower); + iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower); + } + + if (changes & BSS_CHANGED_CQM) { + IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n"); + /* reset cqm events tracking */ + mvmvif->bf_data.last_cqm_event = 0; + if (mvmvif->bf_data.bf_enabled) { + ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0); if (ret) - IWL_ERR(mvm, "failed to update power mode\n"); + IWL_ERR(mvm, + "failed to update CQM thresholds\n"); } } + + if (changes & BSS_CHANGED_ARP_FILTER) { + IWL_DEBUG_MAC80211(mvm, "arp filter changed\n"); + iwl_mvm_configure_bcast_filter(mvm, vif); + } } -static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); @@ -785,6 +1396,13 @@ static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) if (ret) goto out_unlock; + /* + * Re-calculate the tsf id, as the master-slave relations depend on the + * beacon interval, which was not known when the AP interface was added. + */ + if (vif->type == NL80211_IFTYPE_AP) + iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif); + /* Add the mac context */ ret = iwl_mvm_mac_ctxt_add(mvm, vif); if (ret) @@ -795,26 +1413,36 @@ static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) if (ret) goto out_remove; - mvmvif->ap_active = true; - /* Send the bcast station. At this stage the TBTT and DTIM time events * are added and applied to the scheduler */ ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta); if (ret) goto out_unbind; + /* must be set before quota calculations */ + mvmvif->ap_ibss_active = true; + + /* power updated needs to be done before quotas */ + iwl_mvm_power_update_mac(mvm); + ret = iwl_mvm_update_quotas(mvm, vif); if (ret) - goto out_rm_bcast; + goto out_quota_failed; - /* Need to update the P2P Device MAC */ + /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ if (vif->p2p && mvm->p2p_device_vif) - iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); + iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); + + iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS); + + iwl_mvm_bt_coex_vif_change(mvm); mutex_unlock(&mvm->mutex); return 0; -out_rm_bcast: +out_quota_failed: + iwl_mvm_power_update_mac(mvm); + mvmvif->ap_ibss_active = false; iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); out_unbind: iwl_mvm_binding_remove_vif(mvm, vif); @@ -825,7 +1453,8 @@ out_unlock: return ret; } -static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) +static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); @@ -834,30 +1463,48 @@ static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif) mutex_lock(&mvm->mutex); - mvmvif->ap_active = false; + mvmvif->ap_ibss_active = false; + + iwl_mvm_bt_coex_vif_change(mvm); - /* Need to update the P2P Device MAC */ + iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS); + + /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */ if (vif->p2p && mvm->p2p_device_vif) - iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif); + iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false); iwl_mvm_update_quotas(mvm, NULL); iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta); iwl_mvm_binding_remove_vif(mvm, vif); + + iwl_mvm_power_update_mac(mvm); + iwl_mvm_mac_ctxt_remove(mvm, vif); mutex_unlock(&mvm->mutex); } -static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm, - struct ieee80211_vif *vif, - struct ieee80211_bss_conf *bss_conf, - u32 changes) +static void +iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *bss_conf, + u32 changes) { + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + /* Changes will be applied when the AP/IBSS is started */ + if (!mvmvif->ap_ibss_active) + return; + + if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT | + BSS_CHANGED_BANDWIDTH) && + iwl_mvm_mac_ctxt_changed(mvm, vif, false)) + IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr); + /* Need to send a new beacon template to the FW */ - if (changes & BSS_CHANGED_BEACON) { - if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) - IWL_WARN(mvm, "Failed updating beacon data\n"); - } + if (changes & BSS_CHANGED_BEACON && + iwl_mvm_mac_ctxt_beacon_changed(mvm, vif)) + IWL_WARN(mvm, "Failed updating beacon data\n"); } static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, @@ -869,12 +1516,16 @@ static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); + if (changes & BSS_CHANGED_IDLE && !bss_conf->idle) + iwl_mvm_sched_scan_stop(mvm, true); + switch (vif->type) { case NL80211_IFTYPE_STATION: iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes); break; case NL80211_IFTYPE_AP: - iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes); + case NL80211_IFTYPE_ADHOC: + iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes); break; default: /* shouldn't happen */ @@ -896,13 +1547,30 @@ static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); - if (mvm->scan_status == IWL_MVM_SCAN_NONE) - ret = iwl_mvm_scan_request(mvm, vif, req); - else + switch (mvm->scan_status) { + case IWL_MVM_SCAN_SCHED: + ret = iwl_mvm_sched_scan_stop(mvm, true); + if (ret) { + ret = -EBUSY; + goto out; + } + break; + case IWL_MVM_SCAN_NONE: + break; + default: ret = -EBUSY; + goto out; + } - mutex_unlock(&mvm->mutex); + iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN); + ret = iwl_mvm_scan_request(mvm, vif, req); + if (ret) + iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); +out: + mutex_unlock(&mvm->mutex); + /* make sure to flush the Rx handler before the next scan arrives */ + iwl_mvm_wait_for_async_handlers(mvm); return ret; } @@ -920,20 +1588,32 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, static void iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw, - struct ieee80211_sta *sta, u16 tid, + struct ieee80211_sta *sta, u16 tids, int num_frames, enum ieee80211_frame_release_type reason, bool more_data) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - /* TODO: how do we tell the fw to send frames for a specific TID */ + /* Called when we need to transmit (a) frame(s) from mac80211 */ - /* - * The fw will send EOSP notification when the last frame will be - * transmitted. - */ - iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames); + iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, + tids, more_data, false); +} + +static void +iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw, + struct ieee80211_sta *sta, u16 tids, + int num_frames, + enum ieee80211_frame_release_type reason, + bool more_data) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + + /* Called when we need to transmit (a) frame(s) from agg queue */ + + iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames, + tids, more_data, true); } static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, @@ -942,12 +1622,26 @@ static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, struct ieee80211_sta *sta) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + int tid; switch (cmd) { case STA_NOTIFY_SLEEP: if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0) ieee80211_sta_block_awake(hw, sta, true); + spin_lock_bh(&mvmsta->lock); + for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { + struct iwl_mvm_tid_data *tid_data; + + tid_data = &mvmsta->tid_data[tid]; + if (tid_data->state != IWL_AGG_ON && + tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA) + continue; + if (iwl_mvm_tid_queued(tid_data) == 0) + continue; + ieee80211_sta_set_buffered(sta, tid, true); + } + spin_unlock_bh(&mvmsta->lock); /* * The fw updates the STA to be asleep. Tx packets on the Tx * queues to this station will not be transmitted. The fw will @@ -964,6 +1658,28 @@ static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw, } } +static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; + + /* + * This is called before mac80211 does RCU synchronisation, + * so here we already invalidate our internal RCU-protected + * station pointer. The rest of the code will thus no longer + * be able to find the station this way, and we don't rely + * on further RCU synchronisation after the sta_state() + * callback deleted the station. + */ + mutex_lock(&mvm->mutex); + if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id])) + rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], + ERR_PTR(-ENOENT)); + mutex_unlock(&mvm->mutex); +} + static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, @@ -987,21 +1703,46 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); if (old_state == IEEE80211_STA_NOTEXIST && new_state == IEEE80211_STA_NONE) { + /* + * Firmware bug - it'll crash if the beacon interval is less + * than 16. We can't avoid connecting at all, so refuse the + * station state change, this will cause mac80211 to abandon + * attempts to connect to this AP, and eventually wpa_s will + * blacklist the AP... + */ + if (vif->type == NL80211_IFTYPE_STATION && + vif->bss_conf.beacon_int < 16) { + IWL_ERR(mvm, + "AP %pM beacon interval is %d, refusing due to firmware bug!\n", + sta->addr, vif->bss_conf.beacon_int); + ret = -EINVAL; + goto out_unlock; + } ret = iwl_mvm_add_sta(mvm, vif, sta); } else if (old_state == IEEE80211_STA_NONE && new_state == IEEE80211_STA_AUTH) { + /* + * EBS may be disabled due to previous failures reported by FW. + * Reset EBS status here assuming environment has been changed. + */ + mvm->last_ebs_successful = true; ret = 0; } else if (old_state == IEEE80211_STA_AUTH && new_state == IEEE80211_STA_ASSOC) { ret = iwl_mvm_update_sta(mvm, vif, sta); if (ret == 0) iwl_mvm_rs_rate_init(mvm, sta, - mvmvif->phy_ctxt->channel->band); + mvmvif->phy_ctxt->channel->band, + true); } else if (old_state == IEEE80211_STA_ASSOC && new_state == IEEE80211_STA_AUTHORIZED) { + /* enable beacon filtering */ + WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0)); ret = 0; } else if (old_state == IEEE80211_STA_AUTHORIZED && new_state == IEEE80211_STA_ASSOC) { + /* disable beacon filtering */ + WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0)); ret = 0; } else if (old_state == IEEE80211_STA_ASSOC && new_state == IEEE80211_STA_AUTH) { @@ -1015,6 +1756,7 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw, } else { ret = -EIO; } + out_unlock: mutex_unlock(&mvm->mutex); return ret; @@ -1029,6 +1771,17 @@ static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value) return 0; } +static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, u32 changed) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + + if (vif->type == NL80211_IFTYPE_STATION && + changed & IEEE80211_RC_NSS_CHANGED) + iwl_mvm_sf_update(mvm, vif, false); +} + static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, struct ieee80211_vif *vif, u16 ac, const struct ieee80211_tx_queue_params *params) @@ -1046,7 +1799,7 @@ static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw, int ret; mutex_lock(&mvm->mutex); - ret = iwl_mvm_mac_ctxt_changed(mvm, vif); + ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false); mutex_unlock(&mvm->mutex); return ret; } @@ -1067,8 +1820,83 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); /* Try really hard to protect the session and hear a beacon */ - iwl_mvm_protect_session(mvm, vif, duration, min_duration); + iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500); + mutex_unlock(&mvm->mutex); +} + +static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *req, + struct ieee80211_sched_scan_ies *ies) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + int ret; + + mutex_lock(&mvm->mutex); + + if (!iwl_mvm_is_idle(mvm)) { + ret = -EBUSY; + goto out; + } + + switch (mvm->scan_status) { + case IWL_MVM_SCAN_OS: + IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n"); + ret = iwl_mvm_cancel_scan(mvm); + if (ret) { + ret = -EBUSY; + goto out; + } + + /* + * iwl_mvm_rx_scan_complete() will be called soon but will + * not reset the scan status as it won't be IWL_MVM_SCAN_OS + * any more since we queue the next scan immediately (below). + * We make sure it is called before the next scan starts by + * flushing the async-handlers work. + */ + break; + case IWL_MVM_SCAN_NONE: + break; + default: + ret = -EBUSY; + goto out; + } + + mvm->scan_status = IWL_MVM_SCAN_SCHED; + + ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies); + if (ret) + goto err; + + ret = iwl_mvm_config_sched_scan_profiles(mvm, req); + if (ret) + goto err; + + ret = iwl_mvm_sched_scan_start(mvm, req); + if (!ret) + goto out; +err: + mvm->scan_status = IWL_MVM_SCAN_NONE; +out: + mutex_unlock(&mvm->mutex); + /* make sure to flush the Rx handler before the next scan arrives */ + iwl_mvm_wait_for_async_handlers(mvm); + return ret; +} + +static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + int ret; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_sched_scan_stop(mvm, false); mutex_unlock(&mvm->mutex); + iwl_mvm_wait_for_async_handlers(mvm); + + return ret; } static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, @@ -1104,15 +1932,25 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, */ return 0; default: - return -EOPNOTSUPP; + /* currently FW supports only one optional cipher scheme */ + if (hw->n_cipher_schemes && + hw->cipher_schemes->cipher == key->cipher) + key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE; + else + return -EOPNOTSUPP; } mutex_lock(&mvm->mutex); switch (cmd) { case SET_KEY: - if (vif->type == NL80211_IFTYPE_AP && !sta) { - /* GTK on AP interface is a TX-only key, return 0 */ + if ((vif->type == NL80211_IFTYPE_ADHOC || + vif->type == NL80211_IFTYPE_AP) && !sta) { + /* + * GTK on AP interface is a TX-only key, return 0; + * on IBSS they're per-station and because we're lazy + * we don't support them for RX, so do the same. + */ ret = 0; key->hw_key_idx = STA_KEY_IDX_INVALID; break; @@ -1156,6 +1994,9 @@ static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw, { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID) + return; + iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key); } @@ -1167,29 +2008,107 @@ static int iwl_mvm_roc(struct ieee80211_hw *hw, enum ieee80211_roc_type type) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct cfg80211_chan_def chandef; - int ret; + struct iwl_mvm_phy_ctxt *phy_ctxt; + int ret, i; + + IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, + duration, type); if (vif->type != NL80211_IFTYPE_P2P_DEVICE) { IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type); return -EINVAL; } - IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value, - duration, type); - mutex_lock(&mvm->mutex); + for (i = 0; i < NUM_PHY_CTX; i++) { + phy_ctxt = &mvm->phy_ctxts[i]; + if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt) + continue; + + if (phy_ctxt->ref && channel == phy_ctxt->channel) { + /* + * Unbind the P2P_DEVICE from the current PHY context, + * and if the PHY context is not used remove it. + */ + ret = iwl_mvm_binding_remove_vif(mvm, vif); + if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) + goto out_unlock; + + iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); + + /* Bind the P2P_DEVICE to the current PHY Context */ + mvmvif->phy_ctxt = phy_ctxt; + + ret = iwl_mvm_binding_add_vif(mvm, vif); + if (WARN(ret, "Failed binding P2P_DEVICE\n")) + goto out_unlock; + + iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); + goto schedule_time_event; + } + } + + /* Need to update the PHY context only if the ROC channel changed */ + if (channel == mvmvif->phy_ctxt->channel) + goto schedule_time_event; + cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT); - ret = iwl_mvm_phy_ctxt_changed(mvm, &mvm->phy_ctxt_roc, - &chandef, 1, 1); + /* + * Change the PHY context configuration as it is currently referenced + * only by the P2P Device MAC + */ + if (mvmvif->phy_ctxt->ref == 1) { + ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt, + &chandef, 1, 1); + if (ret) + goto out_unlock; + } else { + /* + * The PHY context is shared with other MACs. Need to remove the + * P2P Device from the binding, allocate an new PHY context and + * create a new binding + */ + phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); + if (!phy_ctxt) { + ret = -ENOSPC; + goto out_unlock; + } + + ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef, + 1, 1); + if (ret) { + IWL_ERR(mvm, "Failed to change PHY context\n"); + goto out_unlock; + } + + /* Unbind the P2P_DEVICE from the current PHY context */ + ret = iwl_mvm_binding_remove_vif(mvm, vif); + if (WARN(ret, "Failed unbinding P2P_DEVICE\n")) + goto out_unlock; + + iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt); + + /* Bind the P2P_DEVICE to the new allocated PHY context */ + mvmvif->phy_ctxt = phy_ctxt; + + ret = iwl_mvm_binding_add_vif(mvm, vif); + if (WARN(ret, "Failed binding P2P_DEVICE\n")) + goto out_unlock; + + iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt); + } + +schedule_time_event: /* Schedule the time events */ ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type); +out_unlock: mutex_unlock(&mvm->mutex); IWL_DEBUG_MAC80211(mvm, "leave\n"); - return ret; } @@ -1211,15 +2130,30 @@ static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *ctx) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv; + u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; + struct iwl_mvm_phy_ctxt *phy_ctxt; int ret; + IWL_DEBUG_MAC80211(mvm, "Add channel context\n"); + mutex_lock(&mvm->mutex); + phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm); + if (!phy_ctxt) { + ret = -ENOSPC; + goto out; + } - IWL_DEBUG_MAC80211(mvm, "Add PHY context\n"); - ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, &ctx->def, - ctx->rx_chains_static, - ctx->rx_chains_dynamic); + ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, + ctx->rx_chains_static, + ctx->rx_chains_dynamic); + if (ret) { + IWL_ERR(mvm, "Failed to add PHY context\n"); + goto out; + } + + iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt); + *phy_ctxt_id = phy_ctxt->id; +out: mutex_unlock(&mvm->mutex); return ret; } @@ -1228,10 +2162,11 @@ static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *ctx) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv; + u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; + struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; mutex_lock(&mvm->mutex); - iwl_mvm_phy_ctxt_remove(mvm, phy_ctxt); + iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt); mutex_unlock(&mvm->mutex); } @@ -1240,10 +2175,21 @@ static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw, u32 changed) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv; + u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; + struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; + + if (WARN_ONCE((phy_ctxt->ref > 1) && + (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH | + IEEE80211_CHANCTX_CHANGE_RX_CHAINS | + IEEE80211_CHANCTX_CHANGE_RADAR | + IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)), + "Cannot change PHY. Ref=%d, changed=0x%X\n", + phy_ctxt->ref, changed)) + return; mutex_lock(&mvm->mutex); - iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def, + iwl_mvm_bt_coex_vif_change(mvm); + iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def, ctx->rx_chains_static, ctx->rx_chains_dynamic); mutex_unlock(&mvm->mutex); @@ -1254,24 +2200,30 @@ static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, struct ieee80211_chanctx_conf *ctx) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); - struct iwl_mvm_phy_ctxt *phyctx = (void *)ctx->drv_priv; + u16 *phy_ctxt_id = (u16 *)ctx->drv_priv; + struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id]; struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); int ret; mutex_lock(&mvm->mutex); - mvmvif->phy_ctxt = phyctx; + mvmvif->phy_ctxt = phy_ctxt; switch (vif->type) { case NL80211_IFTYPE_AP: + /* Unless it's a CSA flow we have nothing to do here */ + if (vif->csa_active) { + mvmvif->ap_ibss_active = true; + break; + } + case NL80211_IFTYPE_ADHOC: /* * The AP binding flow is handled as part of the start_ap flow - * (in bss_info_changed). + * (in bss_info_changed), similarly for IBSS. */ ret = 0; goto out_unlock; case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_MONITOR: break; default: @@ -1284,7 +2236,12 @@ static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, goto out_unlock; /* - * Setting the quota at this stage is only required for monitor + * Power state must be updated before quotas, + * otherwise fw will complain. + */ + iwl_mvm_power_update_mac(mvm); + + /* Setting the quota at this stage is only required for monitor * interfaces. For the other types, the bss_info changed flow * will handle quota settings. */ @@ -1295,10 +2252,17 @@ static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw, goto out_remove_binding; } + /* Handle binding during CSA */ + if (vif->type == NL80211_IFTYPE_AP) { + iwl_mvm_update_quotas(mvm, vif); + iwl_mvm_mac_ctxt_changed(mvm, vif, false); + } + goto out_unlock; out_remove_binding: iwl_mvm_binding_remove_vif(mvm, vif); + iwl_mvm_power_update_mac(mvm); out_unlock: mutex_unlock(&mvm->mutex); if (ret) @@ -1317,21 +2281,30 @@ static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw, iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data); - if (vif->type == NL80211_IFTYPE_AP) - goto out_unlock; - switch (vif->type) { + case NL80211_IFTYPE_ADHOC: + goto out_unlock; case NL80211_IFTYPE_MONITOR: mvmvif->monitor_active = false; iwl_mvm_update_quotas(mvm, NULL); break; + case NL80211_IFTYPE_AP: + /* This part is triggered only during CSA */ + if (!vif->csa_active || !mvmvif->ap_ibss_active) + goto out_unlock; + + mvmvif->ap_ibss_active = false; + iwl_mvm_update_quotas(mvm, NULL); + /*TODO: bt_coex notification here? */ default: break; } iwl_mvm_binding_remove_vif(mvm, vif); + out_unlock: mvmvif->phy_ctxt = NULL; + iwl_mvm_power_update_mac(mvm); mutex_unlock(&mvm->mutex); } @@ -1350,16 +2323,121 @@ static int iwl_mvm_set_tim(struct ieee80211_hw *hw, return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif); } -static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw, +#ifdef CONFIG_NL80211_TESTMODE +static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = { + [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 }, + [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 }, + [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 }, +}; + +static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - enum ieee80211_rssi_event rssi_event) + void *data, int len) +{ + struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1]; + int err; + u32 noa_duration; + + err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy); + if (err) + return err; + + if (!tb[IWL_MVM_TM_ATTR_CMD]) + return -EINVAL; + + switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) { + case IWL_MVM_TM_CMD_SET_NOA: + if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p || + !vif->bss_conf.enable_beacon || + !tb[IWL_MVM_TM_ATTR_NOA_DURATION]) + return -EINVAL; + + noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]); + if (noa_duration >= vif->bss_conf.beacon_int) + return -EINVAL; + + mvm->noa_duration = noa_duration; + mvm->noa_vif = vif; + + return iwl_mvm_update_quotas(mvm, NULL); + case IWL_MVM_TM_CMD_SET_BEACON_FILTER: + /* must be associated client vif - ignore authorized */ + if (!vif || vif->type != NL80211_IFTYPE_STATION || + !vif->bss_conf.assoc || !vif->bss_conf.dtim_period || + !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]) + return -EINVAL; + + if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])) + return iwl_mvm_enable_beacon_filter(mvm, vif, 0); + return iwl_mvm_disable_beacon_filter(mvm, vif, 0); + } + + return -EOPNOTSUPP; +} + +static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + void *data, int len) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + int err; + + mutex_lock(&mvm->mutex); + err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len); + mutex_unlock(&mvm->mutex); + + return err; +} +#endif + +static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, + struct cfg80211_chan_def *chandef) +{ + struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + + mutex_lock(&mvm->mutex); + if (WARN(mvm->csa_vif && mvm->csa_vif->csa_active, + "Another CSA is already in progress")) + goto out_unlock; + + IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n", + chandef->center_freq1); + mvm->csa_vif = vif; + +out_unlock: + mutex_unlock(&mvm->mutex); +} + +static void iwl_mvm_mac_flush(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, u32 queues, bool drop) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); + struct iwl_mvm_vif *mvmvif; + struct iwl_mvm_sta *mvmsta; + + if (!vif || vif->type != NL80211_IFTYPE_STATION) + return; + + mutex_lock(&mvm->mutex); + mvmvif = iwl_mvm_vif_from_mac80211(vif); + mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id); - iwl_mvm_bt_rssi_event(mvm, vif, rssi_event); + if (WARN_ON_ONCE(!mvmsta)) + goto done; + + if (drop) { + if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true)) + IWL_ERR(mvm, "flush request fail\n"); + } else { + iwl_trans_wait_tx_queue_empty(mvm->trans, + mvmsta->tfd_queue_msk); + } +done: + mutex_unlock(&mvm->mutex); } -struct ieee80211_ops iwl_mvm_hw_ops = { +const struct ieee80211_ops iwl_mvm_hw_ops = { .tx = iwl_mvm_mac_tx, .ampdu_action = iwl_mvm_mac_ampdu_action, .start = iwl_mvm_mac_start, @@ -1368,33 +2446,44 @@ struct ieee80211_ops iwl_mvm_hw_ops = { .add_interface = iwl_mvm_mac_add_interface, .remove_interface = iwl_mvm_mac_remove_interface, .config = iwl_mvm_mac_config, + .prepare_multicast = iwl_mvm_prepare_multicast, .configure_filter = iwl_mvm_configure_filter, .bss_info_changed = iwl_mvm_bss_info_changed, .hw_scan = iwl_mvm_mac_hw_scan, .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan, + .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove, .sta_state = iwl_mvm_mac_sta_state, .sta_notify = iwl_mvm_mac_sta_notify, .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames, + .release_buffered_frames = iwl_mvm_mac_release_buffered_frames, .set_rts_threshold = iwl_mvm_mac_set_rts_threshold, + .sta_rc_update = iwl_mvm_sta_rc_update, .conf_tx = iwl_mvm_mac_conf_tx, .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx, + .flush = iwl_mvm_mac_flush, + .sched_scan_start = iwl_mvm_mac_sched_scan_start, + .sched_scan_stop = iwl_mvm_mac_sched_scan_stop, .set_key = iwl_mvm_mac_set_key, .update_tkip_key = iwl_mvm_mac_update_tkip_key, .remain_on_channel = iwl_mvm_roc, .cancel_remain_on_channel = iwl_mvm_cancel_roc, - .rssi_callback = iwl_mvm_mac_rssi_callback, - .add_chanctx = iwl_mvm_add_chanctx, .remove_chanctx = iwl_mvm_remove_chanctx, .change_chanctx = iwl_mvm_change_chanctx, .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx, .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx, - .start_ap = iwl_mvm_start_ap, - .stop_ap = iwl_mvm_stop_ap, + .start_ap = iwl_mvm_start_ap_ibss, + .stop_ap = iwl_mvm_stop_ap_ibss, + .join_ibss = iwl_mvm_start_ap_ibss, + .leave_ibss = iwl_mvm_stop_ap_ibss, .set_tim = iwl_mvm_set_tim, + .channel_switch_beacon = iwl_mvm_channel_switch_beacon, + + CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd) + #ifdef CONFIG_PM_SLEEP /* look at d3.c */ .suspend = iwl_mvm_suspend, diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h index 9f46b23801b..fcc6c29482d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -73,24 +73,26 @@ #include "iwl-trans.h" #include "iwl-notif-wait.h" #include "iwl-eeprom-parse.h" -#include "iwl-test.h" -#include "iwl-trans.h" #include "sta.h" #include "fw-api.h" +#include "constants.h" #define IWL_INVALID_MAC80211_QUEUE 0xff #define IWL_MVM_MAX_ADDRESSES 5 /* RSSI offset for WkP */ #define IWL_RSSI_OFFSET 50 +#define IWL_MVM_MISSED_BEACONS_THRESHOLD 8 enum iwl_mvm_tx_fifo { IWL_MVM_TX_FIFO_BK = 0, IWL_MVM_TX_FIFO_BE, IWL_MVM_TX_FIFO_VI, IWL_MVM_TX_FIFO_VO, + IWL_MVM_TX_FIFO_MCAST = 5, }; -extern struct ieee80211_ops iwl_mvm_hw_ops; +extern const struct ieee80211_ops iwl_mvm_hw_ops; + /** * struct iwl_mvm_mod_params - module parameters for iwlmvm * @init_dbg: if true, then the NIC won't be stopped if the INIT fw asserted. @@ -109,6 +111,7 @@ extern struct iwl_mvm_mod_params iwlmvm_mod_params; struct iwl_mvm_phy_ctxt { u16 id; u16 color; + u32 ref; /* * TODO: This should probably be removed. Currently here only for rate @@ -147,7 +150,111 @@ enum iwl_power_scheme { IWL_POWER_SCHEME_LP }; -#define IWL_CONN_MAX_LISTEN_INTERVAL 70 +#define IWL_CONN_MAX_LISTEN_INTERVAL 10 +#define IWL_UAPSD_AC_INFO (IEEE80211_WMM_IE_STA_QOSINFO_AC_VO |\ + IEEE80211_WMM_IE_STA_QOSINFO_AC_VI |\ + IEEE80211_WMM_IE_STA_QOSINFO_AC_BK |\ + IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) +#define IWL_UAPSD_MAX_SP IEEE80211_WMM_IE_STA_QOSINFO_SP_2 + +#ifdef CONFIG_IWLWIFI_DEBUGFS +enum iwl_dbgfs_pm_mask { + MVM_DEBUGFS_PM_KEEP_ALIVE = BIT(0), + MVM_DEBUGFS_PM_SKIP_OVER_DTIM = BIT(1), + MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS = BIT(2), + MVM_DEBUGFS_PM_RX_DATA_TIMEOUT = BIT(3), + MVM_DEBUGFS_PM_TX_DATA_TIMEOUT = BIT(4), + MVM_DEBUGFS_PM_LPRX_ENA = BIT(6), + MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD = BIT(7), + MVM_DEBUGFS_PM_SNOOZE_ENABLE = BIT(8), + MVM_DEBUGFS_PM_UAPSD_MISBEHAVING = BIT(9), +}; + +struct iwl_dbgfs_pm { + u16 keep_alive_seconds; + u32 rx_data_timeout; + u32 tx_data_timeout; + bool skip_over_dtim; + u8 skip_dtim_periods; + bool lprx_ena; + u32 lprx_rssi_threshold; + bool snooze_ena; + bool uapsd_misbehaving; + int mask; +}; + +/* beacon filtering */ + +enum iwl_dbgfs_bf_mask { + MVM_DEBUGFS_BF_ENERGY_DELTA = BIT(0), + MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA = BIT(1), + MVM_DEBUGFS_BF_ROAMING_STATE = BIT(2), + MVM_DEBUGFS_BF_TEMP_THRESHOLD = BIT(3), + MVM_DEBUGFS_BF_TEMP_FAST_FILTER = BIT(4), + MVM_DEBUGFS_BF_TEMP_SLOW_FILTER = BIT(5), + MVM_DEBUGFS_BF_ENABLE_BEACON_FILTER = BIT(6), + MVM_DEBUGFS_BF_DEBUG_FLAG = BIT(7), + MVM_DEBUGFS_BF_ESCAPE_TIMER = BIT(8), + MVM_DEBUGFS_BA_ESCAPE_TIMER = BIT(9), + MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT = BIT(10), +}; + +struct iwl_dbgfs_bf { + u32 bf_energy_delta; + u32 bf_roaming_energy_delta; + u32 bf_roaming_state; + u32 bf_temp_threshold; + u32 bf_temp_fast_filter; + u32 bf_temp_slow_filter; + u32 bf_enable_beacon_filter; + u32 bf_debug_flag; + u32 bf_escape_timer; + u32 ba_escape_timer; + u32 ba_enable_beacon_abort; + int mask; +}; +#endif + +enum iwl_mvm_smps_type_request { + IWL_MVM_SMPS_REQ_BT_COEX, + IWL_MVM_SMPS_REQ_TT, + NUM_IWL_MVM_SMPS_REQ, +}; + +enum iwl_mvm_ref_type { + IWL_MVM_REF_UCODE_DOWN, + IWL_MVM_REF_SCAN, + IWL_MVM_REF_ROC, + IWL_MVM_REF_P2P_CLIENT, + IWL_MVM_REF_AP_IBSS, + IWL_MVM_REF_USER, + IWL_MVM_REF_TX, + IWL_MVM_REF_TX_AGG, + IWL_MVM_REF_EXIT_WORK, + + IWL_MVM_REF_COUNT, +}; + +/** +* struct iwl_mvm_vif_bf_data - beacon filtering related data +* @bf_enabled: indicates if beacon filtering is enabled +* @ba_enabled: indicated if beacon abort is enabled +* @last_beacon_signal: last beacon rssi signal in dbm +* @ave_beacon_signal: average beacon signal +* @last_cqm_event: rssi of the last cqm event +* @bt_coex_min_thold: minimum threshold for BT coex +* @bt_coex_max_thold: maximum threshold for BT coex +* @last_bt_coex_event: rssi of the last BT coex event +*/ +struct iwl_mvm_vif_bf_data { + bool bf_enabled; + bool ba_enabled; + s8 ave_beacon_signal; + s8 last_cqm_event; + s8 bt_coex_min_thold; + s8 bt_coex_max_thold; + s8 last_bt_coex_event; +}; /** * struct iwl_mvm_vif - data per Virtual Interface, it is a MAC context @@ -155,14 +262,19 @@ enum iwl_power_scheme { * @color: to solve races upon MAC addition and removal * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA * @uploaded: indicates the MAC context has been added to the device - * @ap_active: indicates that ap context is configured, and that the interface - * should get quota etc. + * @ap_ibss_active: indicates that AP/IBSS is configured and that the interface + * should get quota etc. + * @pm_enabled - Indicate if MAC power management is allowed * @monitor_active: indicates that monitor context is configured, and that the - * interface should get quota etc. + * interface should get quota etc. + * @low_latency: indicates that this interface is in low-latency mode + * (VMACLowLatencyMode) * @queue_params: QoS params for this MAC * @bcast_sta: station used for broadcast packets. Used by the following * vifs: P2P_DEVICE, GO and AP. * @beacon_skb: the skb used to hold the AP/GO beacon template + * @smps_requests: the SMPS requests of differents parts of the driver, + * combined on update to yield the overall request to mac80211. */ struct iwl_mvm_vif { u16 id; @@ -170,8 +282,11 @@ struct iwl_mvm_vif { u8 ap_sta_id; bool uploaded; - bool ap_active; + bool ap_ibss_active; + bool pm_enabled; bool monitor_active; + bool low_latency; + struct iwl_mvm_vif_bf_data bf_data; u32 ap_beacon_time; @@ -203,18 +318,29 @@ struct iwl_mvm_vif { int tx_key_idx; + bool seqno_valid; + u16 seqno; +#endif + #if IS_ENABLED(CONFIG_IPV6) /* IPv6 addresses for WoWLAN */ - struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS]; + struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX]; int num_target_ipv6_addrs; #endif -#endif #ifdef CONFIG_IWLWIFI_DEBUGFS + struct iwl_mvm *mvm; struct dentry *dbgfs_dir; struct dentry *dbgfs_slink; - void *dbgfs_data; + struct iwl_dbgfs_pm dbgfs_pm; + struct iwl_dbgfs_bf dbgfs_bf; + struct iwl_mac_power_cmd mac_pwr_cmd; #endif + + enum ieee80211_smps_mode smps_requests[NUM_IWL_MVM_SMPS_REQ]; + + /* FW identified misbehaving AP */ + u8 uapsd_misbehaving_bssid[ETH_ALEN]; }; static inline struct iwl_mvm_vif * @@ -223,15 +349,12 @@ iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif) return (void *)vif->drv_priv; } -enum iwl_mvm_status { - IWL_MVM_STATUS_HW_RFKILL, - IWL_MVM_STATUS_ROC_RUNNING, - IWL_MVM_STATUS_IN_HW_RESTART, -}; +extern const u8 tid_to_mac80211_ac[]; enum iwl_scan_status { IWL_MVM_SCAN_NONE, IWL_MVM_SCAN_OS, + IWL_MVM_SCAN_SCHED, }; /** @@ -246,6 +369,94 @@ struct iwl_nvm_section { const u8 *data; }; +/* + * Tx-backoff threshold + * @temperature: The threshold in Celsius + * @backoff: The tx-backoff in uSec + */ +struct iwl_tt_tx_backoff { + s32 temperature; + u32 backoff; +}; + +#define TT_TX_BACKOFF_SIZE 6 + +/** + * struct iwl_tt_params - thermal throttling parameters + * @ct_kill_entry: CT Kill entry threshold + * @ct_kill_exit: CT Kill exit threshold + * @ct_kill_duration: The time intervals (in uSec) in which the driver needs + * to checks whether to exit CT Kill. + * @dynamic_smps_entry: Dynamic SMPS entry threshold + * @dynamic_smps_exit: Dynamic SMPS exit threshold + * @tx_protection_entry: TX protection entry threshold + * @tx_protection_exit: TX protection exit threshold + * @tx_backoff: Array of thresholds for tx-backoff , in ascending order. + * @support_ct_kill: Support CT Kill? + * @support_dynamic_smps: Support dynamic SMPS? + * @support_tx_protection: Support tx protection? + * @support_tx_backoff: Support tx-backoff? + */ +struct iwl_tt_params { + s32 ct_kill_entry; + s32 ct_kill_exit; + u32 ct_kill_duration; + s32 dynamic_smps_entry; + s32 dynamic_smps_exit; + s32 tx_protection_entry; + s32 tx_protection_exit; + struct iwl_tt_tx_backoff tx_backoff[TT_TX_BACKOFF_SIZE]; + bool support_ct_kill; + bool support_dynamic_smps; + bool support_tx_protection; + bool support_tx_backoff; +}; + +/** + * struct iwl_mvm_tt_mgnt - Thermal Throttling Management structure + * @ct_kill_exit: worker to exit thermal kill + * @dynamic_smps: Is thermal throttling enabled dynamic_smps? + * @tx_backoff: The current thremal throttling tx backoff in uSec. + * @min_backoff: The minimal tx backoff due to power restrictions + * @params: Parameters to configure the thermal throttling algorithm. + * @throttle: Is thermal throttling is active? + */ +struct iwl_mvm_tt_mgmt { + struct delayed_work ct_kill_exit; + bool dynamic_smps; + u32 tx_backoff; + u32 min_backoff; + const struct iwl_tt_params *params; + bool throttle; +}; + +#define IWL_MVM_NUM_LAST_FRAMES_UCODE_RATES 8 + +struct iwl_mvm_frame_stats { + u32 legacy_frames; + u32 ht_frames; + u32 vht_frames; + u32 bw_20_frames; + u32 bw_40_frames; + u32 bw_80_frames; + u32 bw_160_frames; + u32 sgi_frames; + u32 ngi_frames; + u32 siso_frames; + u32 mimo2_frames; + u32 agg_frames; + u32 ampdu_count; + u32 success_frames; + u32 fail_frames; + u32 last_rates[IWL_MVM_NUM_LAST_FRAMES_UCODE_RATES]; + int last_frame_idx; +}; + +enum { + D0I3_DEFER_WAKEUP, + D0I3_PENDING_WAKEUP, +}; + struct iwl_mvm { /* for logger access */ struct device *dev; @@ -266,23 +477,35 @@ struct iwl_mvm { unsigned long status; + /* + * for beacon filtering - + * currently only one interface can be supported + */ + struct iwl_mvm_vif *bf_allowed_vif; + enum iwl_ucode_type cur_ucode; bool ucode_loaded; - bool init_ucode_run; + bool init_ucode_complete; u32 error_event_table; u32 log_event_table; + u32 umac_error_event_table; + bool support_umac_log; + struct iwl_sf_region sf_space; u32 ampdu_ref; struct iwl_notif_wait_data notif_wait; + struct mvm_statistics_rx rx_stats; + unsigned long transport_queue_stop; u8 queue_to_mac80211[IWL_MAX_HW_QUEUES]; atomic_t queue_stop_count[IWL_MAX_HW_QUEUES]; + const char *nvm_file_name; struct iwl_nvm_data *nvm_data; /* NVM sections */ - struct iwl_nvm_section nvm_sections[NVM_NUM_OF_SECTIONS]; + struct iwl_nvm_section nvm_sections[NVM_MAX_NUM_SECTIONS]; /* EEPROM MAC addresses */ struct mac_address addresses[IWL_MVM_MAX_ADDRESSES]; @@ -293,6 +516,7 @@ struct iwl_mvm { struct work_struct sta_drained_wk; unsigned long sta_drained[BITS_TO_LONGS(IWL_MVM_STATION_COUNT)]; atomic_t pending_frames[IWL_MVM_STATION_COUNT]; + u8 rx_ba_sessions; /* configured by mac80211 */ u32 rts_threshold; @@ -300,20 +524,50 @@ struct iwl_mvm { /* Scan status, cmd (pre-allocated) and auxiliary station */ enum iwl_scan_status scan_status; struct iwl_scan_cmd *scan_cmd; + struct iwl_mcast_filter_cmd *mcast_filter_cmd; + + /* rx chain antennas set through debugfs for the scan command */ + u8 scan_rx_ant; + +#ifdef CONFIG_IWLWIFI_BCAST_FILTERING + /* broadcast filters to configure for each associated station */ + const struct iwl_fw_bcast_filter *bcast_filters; +#ifdef CONFIG_IWLWIFI_DEBUGFS + struct { + u32 override; /* u32 for debugfs_create_bool */ + struct iwl_bcast_filter_cmd cmd; + } dbgfs_bcast_filtering; +#endif +#endif /* Internal station */ struct iwl_mvm_int_sta aux_sta; + bool last_ebs_successful; + u8 scan_last_antenna_idx; /* to toggle TX between antennas */ u8 mgmt_last_antenna_idx; + /* last smart fifo state that was successfully sent to firmware */ + enum iwl_sf_state sf_state; + #ifdef CONFIG_IWLWIFI_DEBUGFS struct dentry *debugfs_dir; u32 dbgfs_sram_offset, dbgfs_sram_len; - bool prevent_power_down_d3; + u32 dbgfs_prph_reg_addr; + bool disable_power_off; + bool disable_power_off_d3; + + struct debugfs_blob_wrapper nvm_hw_blob; + struct debugfs_blob_wrapper nvm_sw_blob; + struct debugfs_blob_wrapper nvm_calib_blob; + struct debugfs_blob_wrapper nvm_prod_blob; + + struct iwl_mvm_frame_stats drv_rx_stats; + spinlock_t drv_stats_lock; #endif - struct iwl_mvm_phy_ctxt phy_ctxt_roc; + struct iwl_mvm_phy_ctxt phy_ctxts[NUM_PHY_CTX]; struct list_head time_event_list; spinlock_t time_event_lock; @@ -324,25 +578,76 @@ struct iwl_mvm { */ unsigned long fw_key_table[BITS_TO_LONGS(STA_KEY_MAX_NUM)]; - /* - * This counter of created interfaces is referenced only in conjunction - * with FW limitation related to power management. Currently PM is - * supported only on a single interface. - * IMPORTANT: this variable counts all interfaces except P2P device. - */ + /* A bitmap of reference types taken by the driver. */ + unsigned long ref_bitmap[BITS_TO_LONGS(IWL_MVM_REF_COUNT)]; + u8 vif_count; + /* -1 for always, 0 for never, >0 for that many times */ + s8 restart_fw; + void *fw_error_dump; + void *fw_error_sram; + u32 fw_error_sram_len; + u32 *fw_error_rxf; + u32 fw_error_rxf_len; + +#ifdef CONFIG_IWLWIFI_LEDS struct led_classdev led; +#endif struct ieee80211_vif *p2p_device_vif; #ifdef CONFIG_PM_SLEEP + struct wiphy_wowlan_support wowlan; int gtk_ivlen, gtk_icvlen, ptk_ivlen, ptk_icvlen; +#ifdef CONFIG_IWLWIFI_DEBUGFS + u32 d3_wake_sysassert; /* must be u32 for debugfs_create_bool */ + bool d3_test_active; + bool store_d3_resume_sram; + void *d3_resume_sram; + u32 d3_test_pme_ptr; + struct ieee80211_vif *keep_vif; #endif +#endif + + /* d0i3 */ + u8 d0i3_ap_sta_id; + bool d0i3_offloading; + struct work_struct d0i3_exit_work; + struct sk_buff_head d0i3_tx; + /* protect d0i3_suspend_flags */ + struct mutex d0i3_suspend_mutex; + unsigned long d0i3_suspend_flags; + /* sync d0i3_tx queue and IWL_MVM_STATUS_IN_D0I3 status flag */ + spinlock_t d0i3_tx_lock; + wait_queue_head_t d0i3_exit_waitq; /* BT-Coex */ u8 bt_kill_msk; struct iwl_bt_coex_profile_notif last_bt_notif; + struct iwl_bt_coex_ci_cmd last_bt_ci_cmd; + u32 last_ant_isol; + u8 last_corun_lut; + u8 bt_tx_prio; + + /* Thermal Throttling and CTkill */ + struct iwl_mvm_tt_mgmt thermal_throttle; + s32 temperature; /* Celsius */ + +#ifdef CONFIG_NL80211_TESTMODE + u32 noa_duration; + struct ieee80211_vif *noa_vif; +#endif + + /* Tx queues */ + u8 aux_queue; + u8 first_agg_queue; + u8 last_agg_queue; + + /* Indicate if device power save is allowed */ + bool ps_disabled; + + struct ieee80211_vif *csa_vif; }; /* Extract MVM priv from op_mode and _hw */ @@ -352,6 +657,44 @@ struct iwl_mvm { #define IWL_MAC80211_GET_MVM(_hw) \ IWL_OP_MODE_GET_MVM((struct iwl_op_mode *)((_hw)->priv)) +enum iwl_mvm_status { + IWL_MVM_STATUS_HW_RFKILL, + IWL_MVM_STATUS_HW_CTKILL, + IWL_MVM_STATUS_ROC_RUNNING, + IWL_MVM_STATUS_IN_HW_RESTART, + IWL_MVM_STATUS_IN_D0I3, +}; + +static inline bool iwl_mvm_is_radio_killed(struct iwl_mvm *mvm) +{ + return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status) || + test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); +} + +static inline struct iwl_mvm_sta * +iwl_mvm_sta_from_staid_protected(struct iwl_mvm *mvm, u8 sta_id) +{ + struct ieee80211_sta *sta; + + if (sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)) + return NULL; + + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], + lockdep_is_held(&mvm->mutex)); + + /* This can happen if the station has been removed right now */ + if (IS_ERR_OR_NULL(sta)) + return NULL; + + return iwl_mvm_sta_from_mac80211(sta); +} + +static inline bool iwl_mvm_is_d0i3_supported(struct iwl_mvm *mvm) +{ + return mvm->trans->cfg->d0i3 && + (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_D0I3_SUPPORT); +} + extern const u8 iwl_mvm_ac_to_tx_fifo[]; struct iwl_rate_info { @@ -371,8 +714,16 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm); /* Utils */ int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, enum ieee80211_band band); +void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags, + enum ieee80211_band band, + struct ieee80211_tx_rate *r); u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx); void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm); +#ifdef CONFIG_IWLWIFI_DEBUGFS +void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm); +void iwl_mvm_fw_error_sram_dump(struct iwl_mvm *mvm); +void iwl_mvm_fw_error_rxf_dump(struct iwl_mvm *mvm); +#endif u8 first_antenna(u8 mask); u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx); @@ -398,6 +749,11 @@ static inline const char *iwl_mvm_get_tx_fail_reason(u32 status) { return ""; } int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync); void iwl_mvm_async_handlers_purge(struct iwl_mvm *mvm); +static inline void iwl_mvm_wait_for_async_handlers(struct iwl_mvm *mvm) +{ + flush_work(&mvm->async_handlers_wk); +} + /* Statistics */ int iwl_mvm_rx_reply_statistics(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, @@ -407,12 +763,15 @@ int iwl_mvm_rx_statistics(struct iwl_mvm *mvm, struct iwl_device_cmd *cmd); /* NVM */ -int iwl_nvm_init(struct iwl_mvm *mvm); +int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic); +int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm); int iwl_mvm_up(struct iwl_mvm *mvm); int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm); int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm); +bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm, + struct iwl_bcast_filter_cmd *cmd); /* * FW notifications / CMD responses handlers @@ -428,6 +787,9 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); int iwl_mvm_rx_radio_ver(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); +int iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd); int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); int iwl_mvm_rx_card_state_notif(struct iwl_mvm *mvm, @@ -443,14 +805,17 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt, int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt, struct cfg80211_chan_def *chandef, u8 chains_static, u8 chains_dynamic); -void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm, - struct iwl_mvm_phy_ctxt *ctxt); +void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm, + struct iwl_mvm_phy_ctxt *ctxt); +void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, + struct iwl_mvm_phy_ctxt *ctxt); /* MAC (virtual interface) programming */ int iwl_mvm_mac_ctxt_init(struct iwl_mvm *mvm, struct ieee80211_vif *vif); void iwl_mvm_mac_ctxt_release(struct iwl_mvm *mvm, struct ieee80211_vif *vif); int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif); -int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif); +int iwl_mvm_mac_ctxt_changed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool force_assoc_off); int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif); u32 iwl_mvm_mac_get_queues_mask(struct iwl_mvm *mvm, struct ieee80211_vif *vif); @@ -459,6 +824,11 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); +int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd); +void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm *mvm, + struct ieee80211_vif *vif); /* Bindings */ int iwl_mvm_binding_add_vif(struct iwl_mvm *mvm, struct ieee80211_vif *vif); @@ -475,7 +845,24 @@ int iwl_mvm_rx_scan_response(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); -void iwl_mvm_cancel_scan(struct iwl_mvm *mvm); +int iwl_mvm_cancel_scan(struct iwl_mvm *mvm); + +/* Scheduled scan */ +int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd); +int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *req, + struct ieee80211_sched_scan_ies *ies); +int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm, + struct cfg80211_sched_scan_request *req); +int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, + struct cfg80211_sched_scan_request *req); +int iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm, bool notify); +int iwl_mvm_rx_sched_scan_results(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd); /* MVM debugfs */ #ifdef CONFIG_IWLWIFI_DEBUGFS @@ -499,17 +886,35 @@ iwl_mvm_vif_dbgfs_clean(struct iwl_mvm *mvm, struct ieee80211_vif *vif) #endif /* CONFIG_IWLWIFI_DEBUGFS */ /* rate scaling */ -int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, - u8 flags, bool init); - -/* power managment */ -int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif); -int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif); -void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - struct iwl_powertable_cmd *cmd); - +int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init); +void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, + struct iwl_mvm_frame_stats *stats, + u32 rate, bool agg); +int rs_pretty_print_rate(char *buf, const u32 rate); + +/* power management */ +int iwl_mvm_power_update_device(struct iwl_mvm *mvm); +int iwl_mvm_power_update_mac(struct iwl_mvm *mvm); +int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + char *buf, int bufsz); + +void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif); +int iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd); + +#ifdef CONFIG_IWLWIFI_LEDS int iwl_mvm_leds_init(struct iwl_mvm *mvm); void iwl_mvm_leds_exit(struct iwl_mvm *mvm); +#else +static inline int iwl_mvm_leds_init(struct iwl_mvm *mvm) +{ + return 0; +} +static inline void iwl_mvm_leds_exit(struct iwl_mvm *mvm) +{ +} +#endif /* D3 (WoWLAN, NetDetect) */ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan); @@ -523,15 +928,115 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, struct inet6_dev *idev); void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, struct ieee80211_vif *vif, int idx); +extern const struct file_operations iwl_dbgfs_d3_test_ops; +#ifdef CONFIG_PM_SLEEP +void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, + struct ieee80211_vif *vif); +#else +static inline void +iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +{ +} +#endif +void iwl_mvm_set_wowlan_qos_seq(struct iwl_mvm_sta *mvm_ap_sta, + struct iwl_wowlan_config_cmd_v2 *cmd); +int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool disable_offloading, + u32 cmd_flags); + +/* D0i3 */ +void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type); +void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type); +void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq); +int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm); /* BT Coex */ -int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm); int iwl_send_bt_init_conf(struct iwl_mvm *mvm); int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd); void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif, enum ieee80211_rssi_event rssi_event); -void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif); +void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm); +u16 iwl_mvm_coex_agg_time_limit(struct iwl_mvm *mvm, + struct ieee80211_sta *sta); +bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm, + struct ieee80211_sta *sta); +bool iwl_mvm_bt_coex_is_tpc_allowed(struct iwl_mvm *mvm, + enum ieee80211_band band); +u8 iwl_mvm_bt_coex_tx_prio(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr, + struct ieee80211_tx_info *info, u8 ac); + +enum iwl_bt_kill_msk { + BT_KILL_MSK_DEFAULT, + BT_KILL_MSK_SCO_HID_A2DP, + BT_KILL_MSK_REDUCED_TXPOW, + BT_KILL_MSK_MAX, +}; +extern const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX]; +extern const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX]; + +/* beacon filtering */ +#ifdef CONFIG_IWLWIFI_DEBUGFS +void +iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif, + struct iwl_beacon_filter_cmd *cmd); +#else +static inline void +iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif, + struct iwl_beacon_filter_cmd *cmd) +{} +#endif +int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool enable, u32 flags); +int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 flags); +int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 flags); +/* SMPS */ +void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + enum iwl_mvm_smps_type_request req_type, + enum ieee80211_smps_mode smps_request); +bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm); + +/* Low latency */ +int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool value); +/* get SystemLowLatencyMode - only needed for beacon threshold? */ +bool iwl_mvm_low_latency(struct iwl_mvm *mvm); +/* get VMACLowLatencyMode */ +static inline bool iwl_mvm_vif_low_latency(struct iwl_mvm_vif *mvmvif) +{ + /* + * should this consider associated/active/... state? + * + * Normally low-latency should only be active on interfaces + * that are active, but at least with debugfs it can also be + * enabled on interfaces that aren't active. However, when + * interface aren't active then they aren't added into the + * binding, so this has no real impact. For now, just return + * the current desired low-latency state. + */ + + return mvmvif->low_latency; +} + +/* Assoc status */ +bool iwl_mvm_is_idle(struct iwl_mvm *mvm); + +/* Thermal management and CT-kill */ +void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff); +void iwl_mvm_tt_handler(struct iwl_mvm *mvm); +void iwl_mvm_tt_initialize(struct iwl_mvm *mvm, u32 min_backoff); +void iwl_mvm_tt_exit(struct iwl_mvm *mvm); +void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state); + +/* smart fifo */ +int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool added_vif); #endif /* __IWL_MVM_H__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c index b8ec02f89ac..808f78f6fbf 100644 --- a/drivers/net/wireless/iwlwifi/mvm/nvm.c +++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -60,46 +60,70 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * *****************************************************************************/ +#include <linux/firmware.h> #include "iwl-trans.h" #include "mvm.h" #include "iwl-eeprom-parse.h" #include "iwl-eeprom-read.h" #include "iwl-nvm-parse.h" -/* list of NVM sections we are allowed/need to read */ -static const int nvm_to_read[] = { - NVM_SECTION_TYPE_HW, - NVM_SECTION_TYPE_SW, - NVM_SECTION_TYPE_CALIBRATION, - NVM_SECTION_TYPE_PRODUCTION, -}; - /* Default NVM size to read */ -#define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024); +#define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024) +#define IWL_MAX_NVM_SECTION_SIZE 7000 -static inline void iwl_nvm_fill_read(struct iwl_nvm_access_cmd *cmd, - u16 offset, u16 length, u16 section) +#define NVM_WRITE_OPCODE 1 +#define NVM_READ_OPCODE 0 + +/* load nvm chunk response */ +enum { + READ_NVM_CHUNK_SUCCEED = 0, + READ_NVM_CHUNK_NOT_VALID_ADDRESS = 1 +}; + +/* + * prepare the NVM host command w/ the pointers to the nvm buffer + * and send it to fw + */ +static int iwl_nvm_write_chunk(struct iwl_mvm *mvm, u16 section, + u16 offset, u16 length, const u8 *data) { - cmd->offset = cpu_to_le16(offset); - cmd->length = cpu_to_le16(length); - cmd->type = cpu_to_le16(section); + struct iwl_nvm_access_cmd nvm_access_cmd = { + .offset = cpu_to_le16(offset), + .length = cpu_to_le16(length), + .type = cpu_to_le16(section), + .op_code = NVM_WRITE_OPCODE, + }; + struct iwl_host_cmd cmd = { + .id = NVM_ACCESS_CMD, + .len = { sizeof(struct iwl_nvm_access_cmd), length }, + .flags = CMD_SEND_IN_RFKILL, + .data = { &nvm_access_cmd, data }, + /* data may come from vmalloc, so use _DUP */ + .dataflags = { 0, IWL_HCMD_DFL_DUP }, + }; + + return iwl_mvm_send_cmd(mvm, &cmd); } static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section, u16 offset, u16 length, u8 *data) { - struct iwl_nvm_access_cmd nvm_access_cmd = {}; + struct iwl_nvm_access_cmd nvm_access_cmd = { + .offset = cpu_to_le16(offset), + .length = cpu_to_le16(length), + .type = cpu_to_le16(section), + .op_code = NVM_READ_OPCODE, + }; struct iwl_nvm_access_resp *nvm_resp; struct iwl_rx_packet *pkt; struct iwl_host_cmd cmd = { .id = NVM_ACCESS_CMD, - .flags = CMD_SYNC | CMD_WANT_SKB, + .flags = CMD_WANT_SKB | CMD_SEND_IN_RFKILL, .data = { &nvm_access_cmd, }, }; int ret, bytes_read, offset_read; u8 *resp_data; - iwl_nvm_fill_read(&nvm_access_cmd, offset, length, section); cmd.len[0] = sizeof(struct iwl_nvm_access_cmd); ret = iwl_mvm_send_cmd(mvm, &cmd); @@ -121,10 +145,26 @@ static int iwl_nvm_read_chunk(struct iwl_mvm *mvm, u16 section, offset_read = le16_to_cpu(nvm_resp->offset); resp_data = nvm_resp->data; if (ret) { - IWL_ERR(mvm, - "NVM access command failed with status %d (device: %s)\n", - ret, mvm->cfg->name); - ret = -EINVAL; + if ((offset != 0) && + (ret == READ_NVM_CHUNK_NOT_VALID_ADDRESS)) { + /* + * meaning of NOT_VALID_ADDRESS: + * driver try to read chunk from address that is + * multiple of 2K and got an error since addr is empty. + * meaning of (offset != 0): driver already + * read valid data from another chunk so this case + * is not an error. + */ + IWL_DEBUG_EEPROM(mvm->trans->dev, + "NVM access command failed on offset 0x%x since that section size is multiple 2K\n", + offset); + ret = 0; + } else { + IWL_DEBUG_EEPROM(mvm->trans->dev, + "NVM access command failed with status %d (device: %s)\n", + ret, mvm->cfg->name); + ret = -EIO; + } goto exit; } @@ -144,6 +184,30 @@ exit: return ret; } +static int iwl_nvm_write_section(struct iwl_mvm *mvm, u16 section, + const u8 *data, u16 length) +{ + int offset = 0; + + /* copy data in chunks of 2k (and remainder if any) */ + + while (offset < length) { + int chunk_size, ret; + + chunk_size = min(IWL_NVM_DEFAULT_CHUNK_SIZE, + length - offset); + + ret = iwl_nvm_write_chunk(mvm, section, offset, + chunk_size, data + offset); + if (ret < 0) + return ret; + + offset += chunk_size; + } + + return 0; +} + /* * Reads an NVM section completely. * NICs prior to 7000 family doesn't have a real NVM, but just read @@ -169,15 +233,16 @@ static int iwl_nvm_read_section(struct iwl_mvm *mvm, u16 section, while (ret == length) { ret = iwl_nvm_read_chunk(mvm, section, offset, length, data); if (ret < 0) { - IWL_ERR(mvm, - "Cannot read NVM from section %d offset %d, length %d\n", - section, offset, length); + IWL_DEBUG_EEPROM(mvm->trans->dev, + "Cannot read NVM from section %d offset %d, length %d\n", + section, offset, length); return ret; } offset += ret; } - IWL_INFO(mvm, "NVM section %d read completed\n", section); + IWL_DEBUG_EEPROM(mvm->trans->dev, + "NVM section %d read completed\n", section); return offset; } @@ -185,54 +250,280 @@ static struct iwl_nvm_data * iwl_parse_nvm_sections(struct iwl_mvm *mvm) { struct iwl_nvm_section *sections = mvm->nvm_sections; - const __le16 *hw, *sw, *calib; + const __le16 *hw, *sw, *calib, *regulatory, *mac_override; /* Checking for required sections */ - if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data || - !mvm->nvm_sections[NVM_SECTION_TYPE_HW].data) { - IWL_ERR(mvm, "Can't parse empty NVM sections\n"); - return NULL; + if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) { + if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data || + !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) { + IWL_ERR(mvm, "Can't parse empty NVM sections\n"); + return NULL; + } + } else { + /* SW and REGULATORY sections are mandatory */ + if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data || + !mvm->nvm_sections[NVM_SECTION_TYPE_REGULATORY].data) { + IWL_ERR(mvm, + "Can't parse empty family 8000 NVM sections\n"); + return NULL; + } + /* MAC_OVERRIDE or at least HW section must exist */ + if (!mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data && + !mvm->nvm_sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data) { + IWL_ERR(mvm, + "Can't parse mac_address, empty sections\n"); + return NULL; + } } if (WARN_ON(!mvm->cfg)) return NULL; - hw = (const __le16 *)sections[NVM_SECTION_TYPE_HW].data; + hw = (const __le16 *)sections[mvm->cfg->nvm_hw_section_num].data; sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data; calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data; - return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib); + regulatory = (const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data; + mac_override = + (const __le16 *)sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data; + + return iwl_parse_nvm_data(mvm->trans->dev, mvm->cfg, hw, sw, calib, + regulatory, mac_override, + mvm->fw->valid_tx_ant, + mvm->fw->valid_rx_ant); } -int iwl_nvm_init(struct iwl_mvm *mvm) +#define MAX_NVM_FILE_LEN 16384 + +/* + * Reads external NVM from a file into mvm->nvm_sections + * + * HOW TO CREATE THE NVM FILE FORMAT: + * ------------------------------ + * 1. create hex file, format: + * 3800 -> header + * 0000 -> header + * 5a40 -> data + * + * rev - 6 bit (word1) + * len - 10 bit (word1) + * id - 4 bit (word2) + * rsv - 12 bit (word2) + * + * 2. flip 8bits with 8 bits per line to get the right NVM file format + * + * 3. create binary file from the hex file + * + * 4. save as "iNVM_xxx.bin" under /lib/firmware + */ +static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm) { - int ret, i, section; - u8 *nvm_buffer, *temp; + int ret, section_size; + u16 section_id; + const struct firmware *fw_entry; + const struct { + __le16 word1; + __le16 word2; + u8 data[]; + } *file_sec; + const u8 *eof, *temp; - /* TODO: find correct NVM max size for a section */ - nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size, - GFP_KERNEL); - if (!nvm_buffer) - return -ENOMEM; - for (i = 0; i < ARRAY_SIZE(nvm_to_read); i++) { - section = nvm_to_read[i]; - /* we override the constness for initial read */ - ret = iwl_nvm_read_section(mvm, section, nvm_buffer); - if (ret < 0) +#define NVM_WORD1_LEN(x) (8 * (x & 0x03FF)) +#define NVM_WORD2_ID(x) (x >> 12) +#define NVM_WORD2_LEN_FAMILY_8000(x) (2 * ((x & 0xFF) << 8 | x >> 8)) +#define NVM_WORD1_ID_FAMILY_8000(x) (x >> 4) + + IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from external NVM\n"); + + /* + * Obtain NVM image via request_firmware. Since we already used + * request_firmware_nowait() for the firmware binary load and only + * get here after that we assume the NVM request can be satisfied + * synchronously. + */ + ret = request_firmware(&fw_entry, mvm->nvm_file_name, + mvm->trans->dev); + if (ret) { + IWL_ERR(mvm, "ERROR: %s isn't available %d\n", + mvm->nvm_file_name, ret); + return ret; + } + + IWL_INFO(mvm, "Loaded NVM file %s (%zu bytes)\n", + mvm->nvm_file_name, fw_entry->size); + + if (fw_entry->size < sizeof(*file_sec)) { + IWL_ERR(mvm, "NVM file too small\n"); + ret = -EINVAL; + goto out; + } + + if (fw_entry->size > MAX_NVM_FILE_LEN) { + IWL_ERR(mvm, "NVM file too large\n"); + ret = -EINVAL; + goto out; + } + + eof = fw_entry->data + fw_entry->size; + + file_sec = (void *)fw_entry->data; + + while (true) { + if (file_sec->data > eof) { + IWL_ERR(mvm, + "ERROR - NVM file too short for section header\n"); + ret = -EINVAL; + break; + } + + /* check for EOF marker */ + if (!file_sec->word1 && !file_sec->word2) { + ret = 0; + break; + } + + if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) { + section_size = + 2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1)); + section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2)); + } else { + section_size = 2 * NVM_WORD2_LEN_FAMILY_8000( + le16_to_cpu(file_sec->word2)); + section_id = NVM_WORD1_ID_FAMILY_8000( + le16_to_cpu(file_sec->word1)); + } + + if (section_size > IWL_MAX_NVM_SECTION_SIZE) { + IWL_ERR(mvm, "ERROR - section too large (%d)\n", + section_size); + ret = -EINVAL; break; - temp = kmemdup(nvm_buffer, ret, GFP_KERNEL); + } + + if (!section_size) { + IWL_ERR(mvm, "ERROR - section empty\n"); + ret = -EINVAL; + break; + } + + if (file_sec->data + section_size > eof) { + IWL_ERR(mvm, + "ERROR - NVM file too short for section (%d bytes)\n", + section_size); + ret = -EINVAL; + break; + } + + if (WARN(section_id >= NVM_MAX_NUM_SECTIONS, + "Invalid NVM section ID %d\n", section_id)) { + ret = -EINVAL; + break; + } + + temp = kmemdup(file_sec->data, section_size, GFP_KERNEL); if (!temp) { ret = -ENOMEM; break; } - mvm->nvm_sections[section].data = temp; - mvm->nvm_sections[section].length = ret; + mvm->nvm_sections[section_id].data = temp; + mvm->nvm_sections[section_id].length = section_size; + + /* advance to the next section */ + file_sec = (void *)(file_sec->data + section_size); + } +out: + release_firmware(fw_entry); + return ret; +} + +/* Loads the NVM data stored in mvm->nvm_sections into the NIC */ +int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm) +{ + int i, ret = 0; + struct iwl_nvm_section *sections = mvm->nvm_sections; + + IWL_DEBUG_EEPROM(mvm->trans->dev, "'Write to NVM\n"); + + for (i = 0; i < ARRAY_SIZE(mvm->nvm_sections); i++) { + if (!mvm->nvm_sections[i].data || !mvm->nvm_sections[i].length) + continue; + ret = iwl_nvm_write_section(mvm, i, sections[i].data, + sections[i].length); + if (ret < 0) { + IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret); + break; + } } - kfree(nvm_buffer); - if (ret < 0) - return ret; + return ret; +} - ret = 0; +int iwl_nvm_init(struct iwl_mvm *mvm, bool read_nvm_from_nic) +{ + int ret, section; + u8 *nvm_buffer, *temp; + + if (WARN_ON_ONCE(mvm->cfg->nvm_hw_section_num >= NVM_MAX_NUM_SECTIONS)) + return -EINVAL; + + /* load NVM values from nic */ + if (read_nvm_from_nic) { + /* Read From FW NVM */ + IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n"); + + nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size, + GFP_KERNEL); + if (!nvm_buffer) + return -ENOMEM; + for (section = 0; section < NVM_MAX_NUM_SECTIONS; section++) { + /* we override the constness for initial read */ + ret = iwl_nvm_read_section(mvm, section, nvm_buffer); + if (ret < 0) + continue; + temp = kmemdup(nvm_buffer, ret, GFP_KERNEL); + if (!temp) { + ret = -ENOMEM; + break; + } + mvm->nvm_sections[section].data = temp; + mvm->nvm_sections[section].length = ret; + +#ifdef CONFIG_IWLWIFI_DEBUGFS + switch (section) { + case NVM_SECTION_TYPE_SW: + mvm->nvm_sw_blob.data = temp; + mvm->nvm_sw_blob.size = ret; + break; + case NVM_SECTION_TYPE_CALIBRATION: + mvm->nvm_calib_blob.data = temp; + mvm->nvm_calib_blob.size = ret; + break; + case NVM_SECTION_TYPE_PRODUCTION: + mvm->nvm_prod_blob.data = temp; + mvm->nvm_prod_blob.size = ret; + break; + default: + if (section == mvm->cfg->nvm_hw_section_num) { + mvm->nvm_hw_blob.data = temp; + mvm->nvm_hw_blob.size = ret; + break; + } + } +#endif + } + kfree(nvm_buffer); + } + + /* load external NVM if configured */ + if (mvm->nvm_file_name) { + /* move to External NVM flow */ + ret = iwl_mvm_read_external_nvm(mvm); + if (ret) + return ret; + } + + /* parse the relevant nvm sections */ mvm->nvm_data = iwl_parse_nvm_sections(mvm); + if (!mvm->nvm_data) + return -ENODATA; - return ret; + return 0; } diff --git a/drivers/net/wireless/iwlwifi/mvm/offloading.c b/drivers/net/wireless/iwlwifi/mvm/offloading.c new file mode 100644 index 00000000000..9bfb95e89cf --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/offloading.c @@ -0,0 +1,215 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include <net/ipv6.h> +#include <net/addrconf.h> +#include "mvm.h" + +void iwl_mvm_set_wowlan_qos_seq(struct iwl_mvm_sta *mvm_ap_sta, + struct iwl_wowlan_config_cmd_v2 *cmd) +{ + int i; + + /* + * For QoS counters, we store the one to use next, so subtract 0x10 + * since the uCode will add 0x10 *before* using the value while we + * increment after using the value (i.e. store the next value to use). + */ + for (i = 0; i < IWL_MAX_TID_COUNT; i++) { + u16 seq = mvm_ap_sta->tid_data[i].seq_number; + seq -= 0x10; + cmd->qos_seq[i] = cpu_to_le16(seq); + } +} + +int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool disable_offloading, + u32 cmd_flags) +{ + union { + struct iwl_proto_offload_cmd_v1 v1; + struct iwl_proto_offload_cmd_v2 v2; + struct iwl_proto_offload_cmd_v3_small v3s; + struct iwl_proto_offload_cmd_v3_large v3l; + } cmd = {}; + struct iwl_host_cmd hcmd = { + .id = PROT_OFFLOAD_CONFIG_CMD, + .flags = cmd_flags, + .data[0] = &cmd, + .dataflags[0] = IWL_HCMD_DFL_DUP, + }; + struct iwl_proto_offload_cmd_common *common; + u32 enabled = 0, size; + u32 capa_flags = mvm->fw->ucode_capa.flags; +#if IS_ENABLED(CONFIG_IPV6) + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + int i; + + if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL || + capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) { + struct iwl_ns_config *nsc; + struct iwl_targ_addr *addrs; + int n_nsc, n_addrs; + int c; + + if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) { + nsc = cmd.v3s.ns_config; + n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S; + addrs = cmd.v3s.targ_addrs; + n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S; + } else { + nsc = cmd.v3l.ns_config; + n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L; + addrs = cmd.v3l.targ_addrs; + n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L; + } + + if (mvmvif->num_target_ipv6_addrs) + enabled |= IWL_D3_PROTO_OFFLOAD_NS; + + /* + * For each address we have (and that will fit) fill a target + * address struct and combine for NS offload structs with the + * solicited node addresses. + */ + for (i = 0, c = 0; + i < mvmvif->num_target_ipv6_addrs && + i < n_addrs && c < n_nsc; i++) { + struct in6_addr solicited_addr; + int j; + + addrconf_addr_solict_mult(&mvmvif->target_ipv6_addrs[i], + &solicited_addr); + for (j = 0; j < c; j++) + if (ipv6_addr_cmp(&nsc[j].dest_ipv6_addr, + &solicited_addr) == 0) + break; + if (j == c) + c++; + addrs[i].addr = mvmvif->target_ipv6_addrs[i]; + addrs[i].config_num = cpu_to_le32(j); + nsc[j].dest_ipv6_addr = solicited_addr; + memcpy(nsc[j].target_mac_addr, vif->addr, ETH_ALEN); + } + + if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) + cmd.v3s.num_valid_ipv6_addrs = cpu_to_le32(i); + else + cmd.v3l.num_valid_ipv6_addrs = cpu_to_le32(i); + } else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) { + if (mvmvif->num_target_ipv6_addrs) { + enabled |= IWL_D3_PROTO_OFFLOAD_NS; + memcpy(cmd.v2.ndp_mac_addr, vif->addr, ETH_ALEN); + } + + BUILD_BUG_ON(sizeof(cmd.v2.target_ipv6_addr[0]) != + sizeof(mvmvif->target_ipv6_addrs[0])); + + for (i = 0; i < min(mvmvif->num_target_ipv6_addrs, + IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2); i++) + memcpy(cmd.v2.target_ipv6_addr[i], + &mvmvif->target_ipv6_addrs[i], + sizeof(cmd.v2.target_ipv6_addr[i])); + } else { + if (mvmvif->num_target_ipv6_addrs) { + enabled |= IWL_D3_PROTO_OFFLOAD_NS; + memcpy(cmd.v1.ndp_mac_addr, vif->addr, ETH_ALEN); + } + + BUILD_BUG_ON(sizeof(cmd.v1.target_ipv6_addr[0]) != + sizeof(mvmvif->target_ipv6_addrs[0])); + + for (i = 0; i < min(mvmvif->num_target_ipv6_addrs, + IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1); i++) + memcpy(cmd.v1.target_ipv6_addr[i], + &mvmvif->target_ipv6_addrs[i], + sizeof(cmd.v1.target_ipv6_addr[i])); + } +#endif + + if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) { + common = &cmd.v3s.common; + size = sizeof(cmd.v3s); + } else if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) { + common = &cmd.v3l.common; + size = sizeof(cmd.v3l); + } else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) { + common = &cmd.v2.common; + size = sizeof(cmd.v2); + } else { + common = &cmd.v1.common; + size = sizeof(cmd.v1); + } + + if (vif->bss_conf.arp_addr_cnt) { + enabled |= IWL_D3_PROTO_OFFLOAD_ARP; + common->host_ipv4_addr = vif->bss_conf.arp_addr_list[0]; + memcpy(common->arp_mac_addr, vif->addr, ETH_ALEN); + } + + if (!disable_offloading) + common->enabled = cpu_to_le32(enabled); + + hcmd.len[0] = size; + return iwl_mvm_send_cmd(mvm, &hcmd); +} diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c index b29c31a4159..cc2f7de396d 100644 --- a/drivers/net/wireless/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/iwlwifi/mvm/ops.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -61,6 +61,7 @@ * *****************************************************************************/ #include <linux/module.h> +#include <linux/vmalloc.h> #include <net/mac80211.h> #include "iwl-notif-wait.h" @@ -79,6 +80,7 @@ #include "rs.h" #include "fw-api-scan.h" #include "time-event.h" +#include "iwl-fw-error-dump.h" /* * module name, copyright, version, etc. @@ -185,9 +187,10 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode) * (PCIe power is lost before PERST# is asserted), causing ME FW * to lose ownership and not being able to obtain it back. */ - iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, - APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, - ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); + if (mvm->trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_set_bits_mask_prph(mvm->trans, APMG_PS_CTRL_REG, + APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS, + ~APMG_PS_CTRL_EARLY_PWR_OFF_RESET_DIS); } struct iwl_rx_handlers { @@ -215,23 +218,38 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = { RX_HANDLER(REPLY_RX_PHY_CMD, iwl_mvm_rx_rx_phy_cmd, false), RX_HANDLER(TX_CMD, iwl_mvm_rx_tx_cmd, false), RX_HANDLER(BA_NOTIF, iwl_mvm_rx_ba_notif, false), + + RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true), + RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, true), + RX_HANDLER(STATISTICS_NOTIFICATION, iwl_mvm_rx_statistics, true), + RX_HANDLER(ANTENNA_COUPLING_NOTIFICATION, + iwl_mvm_rx_ant_coupling_notif, true), + RX_HANDLER(TIME_EVENT_NOTIFICATION, iwl_mvm_rx_time_event_notif, false), - RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false), - RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false), + RX_HANDLER(EOSP_NOTIFICATION, iwl_mvm_rx_eosp_notif, false), - RX_HANDLER(BT_PROFILE_NOTIFICATION, iwl_mvm_rx_bt_coex_notif, true), - RX_HANDLER(BEACON_NOTIFICATION, iwl_mvm_rx_beacon_notif, false), + RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false), + RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, true), + RX_HANDLER(SCAN_OFFLOAD_COMPLETE, + iwl_mvm_rx_scan_offload_complete_notif, true), + RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_sched_scan_results, + false), RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false), RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false), + RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif, + false), + RX_HANDLER(REPLY_ERROR, iwl_mvm_rx_fw_error, false), + RX_HANDLER(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION, + iwl_mvm_power_uapsd_misbehaving_ap_notif, false), }; #undef RX_HANDLER #define CMD(x) [x] = #x -static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { +static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = { CMD(MVM_ALIVE), CMD(REPLY_ERROR), CMD(INIT_COMPLETE_NOTIF), @@ -244,6 +262,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { CMD(TIME_EVENT_NOTIFICATION), CMD(BINDING_CONTEXT_CMD), CMD(TIME_QUOTA_CMD), + CMD(NON_QOS_TX_COUNTER_CMD), CMD(RADIO_VERSION_NOTIFICATION), CMD(SCAN_REQUEST_CMD), CMD(SCAN_ABORT_CMD), @@ -255,10 +274,12 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { CMD(CALIB_RES_NOTIF_PHY_DB), CMD(SET_CALIB_DEFAULT_CMD), CMD(CALIBRATION_COMPLETE_NOTIFICATION), + CMD(ADD_STA_KEY), CMD(ADD_STA), CMD(REMOVE_STA), CMD(LQ_CMD), CMD(SCAN_OFFLOAD_CONFIG_CMD), + CMD(MATCH_FOUND_NOTIFICATION), CMD(SCAN_OFFLOAD_REQUEST_CMD), CMD(SCAN_OFFLOAD_ABORT_CMD), CMD(SCAN_OFFLOAD_COMPLETE), @@ -270,8 +291,11 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { CMD(BEACON_NOTIFICATION), CMD(BEACON_TEMPLATE_CMD), CMD(STATISTICS_NOTIFICATION), + CMD(EOSP_NOTIFICATION), + CMD(REDUCE_TX_POWER_CMD), CMD(TX_ANT_CONFIGURATION_CMD), CMD(D3_CONFIG_CMD), + CMD(D0I3_END_CMD), CMD(PROT_OFFLOAD_CONFIG_CMD), CMD(OFFLOADS_QUERY_CMD), CMD(REMOTE_WAKE_CONFIG_CMD), @@ -288,16 +312,43 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { CMD(NET_DETECT_HOTSPOTS_CMD), CMD(NET_DETECT_HOTSPOTS_QUERY_CMD), CMD(CARD_STATE_NOTIFICATION), + CMD(MISSED_BEACONS_NOTIFICATION), CMD(BT_COEX_PRIO_TABLE), CMD(BT_COEX_PROT_ENV), CMD(BT_PROFILE_NOTIFICATION), CMD(BT_CONFIG), CMD(MCAST_FILTER_CMD), + CMD(BCAST_FILTER_CMD), + CMD(REPLY_SF_CFG_CMD), + CMD(REPLY_BEACON_FILTERING_CMD), + CMD(REPLY_THERMAL_MNG_BACKOFF), + CMD(MAC_PM_POWER_TABLE), + CMD(BT_COEX_CI), + CMD(PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION), + CMD(ANTENNA_COUPLING_NOTIFICATION), }; #undef CMD /* this forward declaration can avoid to export the function */ static void iwl_mvm_async_handlers_wk(struct work_struct *wk); +static void iwl_mvm_d0i3_exit_work(struct work_struct *wk); + +static u32 calc_min_backoff(struct iwl_trans *trans, const struct iwl_cfg *cfg) +{ + const struct iwl_pwr_tx_backoff *pwr_tx_backoff = cfg->pwr_tx_backoffs; + + if (!pwr_tx_backoff) + return 0; + + while (pwr_tx_backoff->pwr) { + if (trans->dflt_pwr_limit >= pwr_tx_backoff->pwr) + return pwr_tx_backoff->backoff; + + pwr_tx_backoff++; + } + + return 0; +} static struct iwl_op_mode * iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, @@ -311,6 +362,14 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, TX_CMD, }; int err, scan_size; + u32 min_backoff; + + /* + * We use IWL_MVM_STATION_COUNT to check the validity of the station + * index all over the driver - check that its value corresponds to the + * array size. + */ + BUILD_BUG_ON(ARRAY_SIZE(mvm->fw_id_to_mac_id) != IWL_MVM_STATION_COUNT); /******************************** * 1. Allocating and configuring HW data @@ -323,7 +382,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, op_mode = hw->priv; op_mode->ops = &iwl_mvm_ops; - op_mode->trans = trans; mvm = IWL_OP_MODE_GET_MVM(op_mode); mvm->dev = trans->dev; @@ -332,7 +390,19 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, mvm->fw = fw; mvm->hw = hw; + mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0; + + mvm->aux_queue = 15; + mvm->first_agg_queue = 16; + mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1; + if (mvm->cfg->base_params->num_of_queues == 16) { + mvm->aux_queue = 11; + mvm->first_agg_queue = 12; + } + mvm->sf_state = SF_UNINIT; + mutex_init(&mvm->mutex); + mutex_init(&mvm->d0i3_suspend_mutex); spin_lock_init(&mvm->async_handlers_lock); INIT_LIST_HEAD(&mvm->time_event_list); INIT_LIST_HEAD(&mvm->async_handlers_list); @@ -341,6 +411,11 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk); INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk); INIT_WORK(&mvm->sta_drained_wk, iwl_mvm_sta_drained_wk); + INIT_WORK(&mvm->d0i3_exit_work, iwl_mvm_d0i3_exit_work); + + spin_lock_init(&mvm->d0i3_tx_lock); + skb_queue_head_init(&mvm->d0i3_tx); + init_waitqueue_head(&mvm->d0i3_exit_waitq); SET_IEEE80211_DEV(mvm->hw, mvm->trans->dev); @@ -389,21 +464,43 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, IWL_INFO(mvm, "Detected %s, REV=0x%X\n", mvm->cfg->name, mvm->trans->hw_rev); - err = iwl_trans_start_hw(mvm->trans); - if (err) - goto out_free; + min_backoff = calc_min_backoff(trans, cfg); + iwl_mvm_tt_initialize(mvm, min_backoff); + /* set the nvm_file_name according to priority */ + if (iwlwifi_mod_params.nvm_file) + mvm->nvm_file_name = iwlwifi_mod_params.nvm_file; + else + mvm->nvm_file_name = mvm->cfg->default_nvm_file; - mutex_lock(&mvm->mutex); - err = iwl_run_init_mvm_ucode(mvm, true); - mutex_unlock(&mvm->mutex); - if (err && !iwlmvm_mod_params.init_dbg) { - IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); + if (WARN(cfg->no_power_up_nic_in_init && !mvm->nvm_file_name, + "not allowing power-up and not having nvm_file\n")) goto out_free; - } - /* Stop the hw after the ALIVE and NVM has been read */ - if (!iwlmvm_mod_params.init_dbg) - iwl_trans_stop_hw(mvm->trans, false); + /* + * Even if nvm exists in the nvm_file driver should read agin the nvm + * from the nic because there might be entries that exist in the OTP + * and not in the file. + * for nics with no_power_up_nic_in_init: rely completley on nvm_file + */ + if (cfg->no_power_up_nic_in_init && mvm->nvm_file_name) { + err = iwl_nvm_init(mvm, false); + if (err) + goto out_free; + } else { + err = iwl_trans_start_hw(mvm->trans); + if (err) + goto out_free; + + mutex_lock(&mvm->mutex); + err = iwl_run_init_mvm_ucode(mvm, true); + iwl_trans_stop_device(trans); + mutex_unlock(&mvm->mutex); + /* returns 0 if successful, 1 if success but in rfkill */ + if (err < 0 && !iwlmvm_mod_params.init_dbg) { + IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err); + goto out_free; + } + } scan_size = sizeof(struct iwl_scan_cmd) + mvm->fw->ucode_capa.max_probe_length + @@ -420,14 +517,21 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg, if (err) goto out_unregister; + memset(&mvm->rx_stats, 0, sizeof(struct mvm_statistics_rx)); + + /* rpm starts with a taken ref. only set the appropriate bit here. */ + set_bit(IWL_MVM_REF_UCODE_DOWN, mvm->ref_bitmap); + return op_mode; out_unregister: ieee80211_unregister_hw(mvm->hw); + iwl_mvm_leds_exit(mvm); out_free: iwl_phy_db_free(mvm->phy_db); kfree(mvm->scan_cmd); - iwl_trans_stop_hw(trans, true); + if (!cfg->no_power_up_nic_in_init || !mvm->nvm_file_name) + iwl_trans_op_mode_leave(trans); ieee80211_free_hw(mvm->hw); return NULL; } @@ -439,17 +543,28 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode) iwl_mvm_leds_exit(mvm); + iwl_mvm_tt_exit(mvm); + ieee80211_unregister_hw(mvm->hw); kfree(mvm->scan_cmd); + vfree(mvm->fw_error_dump); + kfree(mvm->fw_error_sram); + kfree(mvm->fw_error_rxf); + kfree(mvm->mcast_filter_cmd); + mvm->mcast_filter_cmd = NULL; + +#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_IWLWIFI_DEBUGFS) + kfree(mvm->d3_resume_sram); +#endif - iwl_trans_stop_hw(mvm->trans, true); + iwl_trans_op_mode_leave(mvm->trans); iwl_phy_db_free(mvm->phy_db); mvm->phy_db = NULL; iwl_free_nvm_data(mvm->nvm_data); - for (i = 0; i < NVM_NUM_OF_SECTIONS; i++) + for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++) kfree(mvm->nvm_sections[i].data); ieee80211_free_hw(mvm->hw); @@ -589,7 +704,17 @@ static void iwl_mvm_wake_sw_queue(struct iwl_op_mode *op_mode, int queue) ieee80211_wake_queue(mvm->hw, mq); } -static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) +void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state) +{ + if (state) + set_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); + else + clear_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status); + + wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); +} + +static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); @@ -598,7 +723,9 @@ static void iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state) else clear_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status); - wiphy_rfkill_set_hw_state(mvm->hw->wiphy, state); + wiphy_rfkill_set_hw_state(mvm->hw->wiphy, iwl_mvm_is_radio_killed(mvm)); + + return state && mvm->cur_ucode != IWL_UCODE_INIT; } static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) @@ -611,47 +738,165 @@ static void iwl_mvm_free_skb(struct iwl_op_mode *op_mode, struct sk_buff *skb) ieee80211_free_txskb(mvm->hw, skb); } +struct iwl_mvm_reprobe { + struct device *dev; + struct work_struct work; +}; + +static void iwl_mvm_reprobe_wk(struct work_struct *wk) +{ + struct iwl_mvm_reprobe *reprobe; + + reprobe = container_of(wk, struct iwl_mvm_reprobe, work); + if (device_reprobe(reprobe->dev)) + dev_err(reprobe->dev, "reprobe failed!\n"); + kfree(reprobe); + module_put(THIS_MODULE); +} + static void iwl_mvm_nic_restart(struct iwl_mvm *mvm) { iwl_abort_notification_waits(&mvm->notif_wait); /* + * This is a bit racy, but worst case we tell mac80211 about + * a stopped/aborted scan when that was already done which + * is not a problem. It is necessary to abort any os scan + * here because mac80211 requires having the scan cleared + * before restarting. + * We'll reset the scan_status to NONE in restart cleanup in + * the next start() call from mac80211. If restart isn't called + * (no fw restart) scan status will stay busy. + */ + switch (mvm->scan_status) { + case IWL_MVM_SCAN_NONE: + break; + case IWL_MVM_SCAN_OS: + ieee80211_scan_completed(mvm->hw, true); + break; + case IWL_MVM_SCAN_SCHED: + /* Sched scan will be restarted by mac80211 in restart_hw. */ + if (!mvm->restart_fw) + ieee80211_sched_scan_stopped(mvm->hw); + break; + } + + /* * If we're restarting already, don't cycle restarts. * If INIT fw asserted, it will likely fail again. * If WoWLAN fw asserted, don't restart either, mac80211 * can't recover this since we're already half suspended. */ if (test_and_set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { - IWL_ERR(mvm, "Firmware error during reconfiguration! Abort.\n"); - } else if (mvm->cur_ucode == IWL_UCODE_REGULAR && - iwlwifi_mod_params.restart_fw) { + struct iwl_mvm_reprobe *reprobe; + + IWL_ERR(mvm, + "Firmware error during reconfiguration - reprobe!\n"); + /* - * This is a bit racy, but worst case we tell mac80211 about - * a stopped/aborted (sched) scan when that was already done - * which is not a problem. It is necessary to abort any scan - * here because mac80211 requires having the scan cleared - * before restarting. - * We'll reset the scan_status to NONE in restart cleanup in - * the next start() call from mac80211. + * get a module reference to avoid doing this while unloading + * anyway and to avoid scheduling a work with code that's + * being removed. */ - switch (mvm->scan_status) { - case IWL_MVM_SCAN_NONE: - break; - case IWL_MVM_SCAN_OS: - ieee80211_scan_completed(mvm->hw, true); - break; + if (!try_module_get(THIS_MODULE)) { + IWL_ERR(mvm, "Module is being unloaded - abort\n"); + return; } + reprobe = kzalloc(sizeof(*reprobe), GFP_ATOMIC); + if (!reprobe) { + module_put(THIS_MODULE); + return; + } + reprobe->dev = mvm->trans->dev; + INIT_WORK(&reprobe->work, iwl_mvm_reprobe_wk); + schedule_work(&reprobe->work); + } else if (mvm->cur_ucode == IWL_UCODE_REGULAR && mvm->restart_fw) { + /* don't let the transport/FW power down */ + iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); + + if (mvm->restart_fw > 0) + mvm->restart_fw--; ieee80211_restart_hw(mvm->hw); } } +#ifdef CONFIG_IWLWIFI_DEBUGFS +void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) +{ + struct iwl_fw_error_dump_file *dump_file; + struct iwl_fw_error_dump_data *dump_data; + u32 file_len; + u32 trans_len; + + lockdep_assert_held(&mvm->mutex); + + if (mvm->fw_error_dump) + return; + + file_len = mvm->fw_error_sram_len + + mvm->fw_error_rxf_len + + sizeof(*dump_file) + + sizeof(*dump_data) * 2; + + trans_len = iwl_trans_dump_data(mvm->trans, NULL, 0); + if (trans_len) + file_len += trans_len; + + dump_file = vmalloc(file_len); + if (!dump_file) + return; + + mvm->fw_error_dump = dump_file; + + dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER); + dump_file->file_len = cpu_to_le32(file_len); + dump_data = (void *)dump_file->data; + dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF); + dump_data->len = cpu_to_le32(mvm->fw_error_rxf_len); + memcpy(dump_data->data, mvm->fw_error_rxf, mvm->fw_error_rxf_len); + + dump_data = iwl_mvm_fw_error_next_data(dump_data); + dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM); + dump_data->len = cpu_to_le32(mvm->fw_error_sram_len); + + /* + * No need for lock since at the stage the FW isn't loaded. So it + * can't assert - we are the only one who can possibly be accessing + * mvm->fw_error_sram right now. + */ + memcpy(dump_data->data, mvm->fw_error_sram, mvm->fw_error_sram_len); + + kfree(mvm->fw_error_rxf); + mvm->fw_error_rxf = NULL; + mvm->fw_error_rxf_len = 0; + + kfree(mvm->fw_error_sram); + mvm->fw_error_sram = NULL; + mvm->fw_error_sram_len = 0; + + if (trans_len) { + void *buf = iwl_mvm_fw_error_next_data(dump_data); + u32 real_trans_len = iwl_trans_dump_data(mvm->trans, buf, + trans_len); + dump_data = (void *)((u8 *)buf + real_trans_len); + dump_file->file_len = + cpu_to_le32(file_len - trans_len + real_trans_len); + } +} +#endif + static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode) { struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); iwl_mvm_dump_nic_error_log(mvm); +#ifdef CONFIG_IWLWIFI_DEBUGFS + iwl_mvm_fw_error_sram_dump(mvm); + iwl_mvm_fw_error_rxf_dump(mvm); +#endif + iwl_mvm_nic_restart(mvm); } @@ -663,6 +908,351 @@ static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode) iwl_mvm_nic_restart(mvm); } +struct iwl_d0i3_iter_data { + struct iwl_mvm *mvm; + u8 ap_sta_id; + u8 vif_count; + u8 offloading_tid; + bool disable_offloading; +}; + +static bool iwl_mvm_disallow_offloading(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_d0i3_iter_data *iter_data) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct ieee80211_sta *ap_sta; + struct iwl_mvm_sta *mvmsta; + u32 available_tids = 0; + u8 tid; + + if (WARN_ON(vif->type != NL80211_IFTYPE_STATION || + mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)) + return false; + + ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id]); + if (IS_ERR_OR_NULL(ap_sta)) + return false; + + mvmsta = iwl_mvm_sta_from_mac80211(ap_sta); + spin_lock_bh(&mvmsta->lock); + for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { + struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; + + /* + * in case of pending tx packets, don't use this tid + * for offloading in order to prevent reuse of the same + * qos seq counters. + */ + if (iwl_mvm_tid_queued(tid_data)) + continue; + + if (tid_data->state != IWL_AGG_OFF) + continue; + + available_tids |= BIT(tid); + } + spin_unlock_bh(&mvmsta->lock); + + /* + * disallow protocol offloading if we have no available tid + * (with no pending frames and no active aggregation, + * as we don't handle "holes" properly - the scheduler needs the + * frame's seq number and TFD index to match) + */ + if (!available_tids) + return true; + + /* for simplicity, just use the first available tid */ + iter_data->offloading_tid = ffs(available_tids) - 1; + return false; +} + +static void iwl_mvm_enter_d0i3_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_d0i3_iter_data *data = _data; + struct iwl_mvm *mvm = data->mvm; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; + + IWL_DEBUG_RPM(mvm, "entering D0i3 - vif %pM\n", vif->addr); + if (vif->type != NL80211_IFTYPE_STATION || + !vif->bss_conf.assoc) + return; + + /* + * in case of pending tx packets or active aggregations, + * avoid offloading features in order to prevent reuse of + * the same qos seq counters. + */ + if (iwl_mvm_disallow_offloading(mvm, vif, data)) + data->disable_offloading = true; + + iwl_mvm_update_d0i3_power_mode(mvm, vif, true, flags); + iwl_mvm_send_proto_offload(mvm, vif, data->disable_offloading, flags); + + /* + * on init/association, mvm already configures POWER_TABLE_CMD + * and REPLY_MCAST_FILTER_CMD, so currently don't + * reconfigure them (we might want to use different + * params later on, though). + */ + data->ap_sta_id = mvmvif->ap_sta_id; + data->vif_count++; +} + +static void iwl_mvm_set_wowlan_data(struct iwl_mvm *mvm, + struct iwl_wowlan_config_cmd_v3 *cmd, + struct iwl_d0i3_iter_data *iter_data) +{ + struct ieee80211_sta *ap_sta; + struct iwl_mvm_sta *mvm_ap_sta; + + if (iter_data->ap_sta_id == IWL_MVM_STATION_COUNT) + return; + + rcu_read_lock(); + + ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[iter_data->ap_sta_id]); + if (IS_ERR_OR_NULL(ap_sta)) + goto out; + + mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); + cmd->common.is_11n_connection = ap_sta->ht_cap.ht_supported; + cmd->offloading_tid = iter_data->offloading_tid; + + /* + * The d0i3 uCode takes care of the nonqos counters, + * so configure only the qos seq ones. + */ + iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, &cmd->common); +out: + rcu_read_unlock(); +} +static int iwl_mvm_enter_d0i3(struct iwl_op_mode *op_mode) +{ + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE; + int ret; + struct iwl_d0i3_iter_data d0i3_iter_data = { + .mvm = mvm, + }; + struct iwl_wowlan_config_cmd_v3 wowlan_config_cmd = { + .common = { + .wakeup_filter = + cpu_to_le32(IWL_WOWLAN_WAKEUP_RX_FRAME | + IWL_WOWLAN_WAKEUP_BEACON_MISS | + IWL_WOWLAN_WAKEUP_LINK_CHANGE | + IWL_WOWLAN_WAKEUP_BCN_FILTERING), + }, + }; + struct iwl_d3_manager_config d3_cfg_cmd = { + .min_sleep_time = cpu_to_le32(1000), + }; + + IWL_DEBUG_RPM(mvm, "MVM entering D0i3\n"); + + /* make sure we have no running tx while configuring the qos */ + set_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); + synchronize_net(); + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_enter_d0i3_iterator, + &d0i3_iter_data); + if (d0i3_iter_data.vif_count == 1) { + mvm->d0i3_ap_sta_id = d0i3_iter_data.ap_sta_id; + mvm->d0i3_offloading = !d0i3_iter_data.disable_offloading; + } else { + WARN_ON_ONCE(d0i3_iter_data.vif_count > 1); + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; + mvm->d0i3_offloading = false; + } + + iwl_mvm_set_wowlan_data(mvm, &wowlan_config_cmd, &d0i3_iter_data); + ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, flags, + sizeof(wowlan_config_cmd), + &wowlan_config_cmd); + if (ret) + return ret; + + return iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, + flags | CMD_MAKE_TRANS_IDLE, + sizeof(d3_cfg_cmd), &d3_cfg_cmd); +} + +static void iwl_mvm_exit_d0i3_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = _data; + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO; + + IWL_DEBUG_RPM(mvm, "exiting D0i3 - vif %pM\n", vif->addr); + if (vif->type != NL80211_IFTYPE_STATION || + !vif->bss_conf.assoc) + return; + + iwl_mvm_update_d0i3_power_mode(mvm, vif, false, flags); +} + +static void iwl_mvm_d0i3_disconnect_iter(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc && + mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id) + ieee80211_connection_loss(vif); +} + +void iwl_mvm_d0i3_enable_tx(struct iwl_mvm *mvm, __le16 *qos_seq) +{ + struct ieee80211_sta *sta = NULL; + struct iwl_mvm_sta *mvm_ap_sta; + int i; + bool wake_queues = false; + + lockdep_assert_held(&mvm->mutex); + + spin_lock_bh(&mvm->d0i3_tx_lock); + + if (mvm->d0i3_ap_sta_id == IWL_MVM_STATION_COUNT) + goto out; + + IWL_DEBUG_RPM(mvm, "re-enqueue packets\n"); + + /* get the sta in order to update seq numbers and re-enqueue skbs */ + sta = rcu_dereference_protected( + mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id], + lockdep_is_held(&mvm->mutex)); + + if (IS_ERR_OR_NULL(sta)) { + sta = NULL; + goto out; + } + + if (mvm->d0i3_offloading && qos_seq) { + /* update qos seq numbers if offloading was enabled */ + mvm_ap_sta = (struct iwl_mvm_sta *)sta->drv_priv; + for (i = 0; i < IWL_MAX_TID_COUNT; i++) { + u16 seq = le16_to_cpu(qos_seq[i]); + /* firmware stores last-used one, we store next one */ + seq += 0x10; + mvm_ap_sta->tid_data[i].seq_number = seq; + } + } +out: + /* re-enqueue (or drop) all packets */ + while (!skb_queue_empty(&mvm->d0i3_tx)) { + struct sk_buff *skb = __skb_dequeue(&mvm->d0i3_tx); + + if (!sta || iwl_mvm_tx_skb(mvm, skb, sta)) + ieee80211_free_txskb(mvm->hw, skb); + + /* if the skb_queue is not empty, we need to wake queues */ + wake_queues = true; + } + clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status); + wake_up(&mvm->d0i3_exit_waitq); + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; + if (wake_queues) + ieee80211_wake_queues(mvm->hw); + + spin_unlock_bh(&mvm->d0i3_tx_lock); +} + +static void iwl_mvm_d0i3_exit_work(struct work_struct *wk) +{ + struct iwl_mvm *mvm = container_of(wk, struct iwl_mvm, d0i3_exit_work); + struct iwl_host_cmd get_status_cmd = { + .id = WOWLAN_GET_STATUSES, + .flags = CMD_HIGH_PRIO | CMD_WANT_SKB, + }; + struct iwl_wowlan_status *status; + int ret; + u32 disconnection_reasons, wakeup_reasons; + __le16 *qos_seq = NULL; + + mutex_lock(&mvm->mutex); + ret = iwl_mvm_send_cmd(mvm, &get_status_cmd); + if (ret) + goto out; + + if (!get_status_cmd.resp_pkt) + goto out; + + status = (void *)get_status_cmd.resp_pkt->data; + wakeup_reasons = le32_to_cpu(status->wakeup_reasons); + qos_seq = status->qos_seq_ctr; + + IWL_DEBUG_RPM(mvm, "wakeup reasons: 0x%x\n", wakeup_reasons); + + disconnection_reasons = + IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | + IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; + if (wakeup_reasons & disconnection_reasons) + ieee80211_iterate_active_interfaces( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_d0i3_disconnect_iter, mvm); + + iwl_free_resp(&get_status_cmd); +out: + iwl_mvm_d0i3_enable_tx(mvm, qos_seq); + iwl_mvm_unref(mvm, IWL_MVM_REF_EXIT_WORK); + mutex_unlock(&mvm->mutex); +} + +int _iwl_mvm_exit_d0i3(struct iwl_mvm *mvm) +{ + u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE | + CMD_WAKE_UP_TRANS; + int ret; + + IWL_DEBUG_RPM(mvm, "MVM exiting D0i3\n"); + + mutex_lock(&mvm->d0i3_suspend_mutex); + if (test_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags)) { + IWL_DEBUG_RPM(mvm, "Deferring d0i3 exit until resume\n"); + __set_bit(D0I3_PENDING_WAKEUP, &mvm->d0i3_suspend_flags); + mutex_unlock(&mvm->d0i3_suspend_mutex); + return 0; + } + mutex_unlock(&mvm->d0i3_suspend_mutex); + + ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL); + if (ret) + goto out; + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_exit_d0i3_iterator, + mvm); +out: + schedule_work(&mvm->d0i3_exit_work); + return ret; +} + +static int iwl_mvm_exit_d0i3(struct iwl_op_mode *op_mode) +{ + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + + iwl_mvm_ref(mvm, IWL_MVM_REF_EXIT_WORK); + return _iwl_mvm_exit_d0i3(mvm); +} + +static void iwl_mvm_napi_add(struct iwl_op_mode *op_mode, + struct napi_struct *napi, + struct net_device *napi_dev, + int (*poll)(struct napi_struct *, int), + int weight) +{ + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + + ieee80211_napi_add(mvm->hw, napi, napi_dev, poll, weight); +} + static const struct iwl_op_mode_ops iwl_mvm_ops = { .start = iwl_op_mode_mvm_start, .stop = iwl_op_mode_mvm_stop, @@ -674,4 +1264,7 @@ static const struct iwl_op_mode_ops iwl_mvm_ops = { .nic_error = iwl_mvm_nic_error, .cmd_queue_full = iwl_mvm_cmd_queue_full, .nic_config = iwl_mvm_nic_config, + .enter_d0i3 = iwl_mvm_enter_d0i3, + .exit_d0i3 = iwl_mvm_exit_d0i3, + .napi_add = iwl_mvm_napi_add, }; diff --git a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c index a28a1d1f23e..539f3a942d4 100644 --- a/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c +++ b/drivers/net/wireless/iwlwifi/mvm/phy-ctxt.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -156,13 +156,25 @@ static void iwl_mvm_phy_ctxt_cmd_data(struct iwl_mvm *mvm, idle_cnt = chains_static; active_cnt = chains_dynamic; - cmd->rxchain_info = cpu_to_le32(iwl_fw_valid_rx_ant(mvm->fw) << + /* In scenarios where we only ever use a single-stream rates, + * i.e. legacy 11b/g/a associations, single-stream APs or even + * static SMPS, enable both chains to get diversity, improving + * the case where we're far enough from the AP that attenuation + * between the two antennas is sufficiently different to impact + * performance. + */ + if (active_cnt == 1 && iwl_mvm_rx_diversity_allowed(mvm)) { + idle_cnt = 2; + active_cnt = 2; + } + + cmd->rxchain_info = cpu_to_le32(mvm->fw->valid_rx_ant << PHY_RX_CHAIN_VALID_POS); cmd->rxchain_info |= cpu_to_le32(idle_cnt << PHY_RX_CHAIN_CNT_POS); cmd->rxchain_info |= cpu_to_le32(active_cnt << PHY_RX_CHAIN_MIMO_CNT_POS); - cmd->txchain_info = cpu_to_le32(iwl_fw_valid_tx_ant(mvm->fw)); + cmd->txchain_info = cpu_to_le32(mvm->fw->valid_tx_ant); } /* @@ -187,7 +199,7 @@ static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm, iwl_mvm_phy_ctxt_cmd_data(mvm, &cmd, chandef, chains_static, chains_dynamic); - ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD, CMD_SYNC, + ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD, 0, sizeof(struct iwl_phy_context_cmd), &cmd); if (ret) @@ -195,21 +207,6 @@ static int iwl_mvm_phy_ctxt_apply(struct iwl_mvm *mvm, return ret; } - -struct phy_ctx_used_data { - unsigned long used[BITS_TO_LONGS(NUM_PHY_CTX)]; -}; - -static void iwl_mvm_phy_ctx_used_iter(struct ieee80211_hw *hw, - struct ieee80211_chanctx_conf *ctx, - void *_data) -{ - struct phy_ctx_used_data *data = _data; - struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv; - - __set_bit(phy_ctxt->id, data->used); -} - /* * Send a command to add a PHY context based on the current HW configuration. */ @@ -217,37 +214,28 @@ int iwl_mvm_phy_ctxt_add(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt, struct cfg80211_chan_def *chandef, u8 chains_static, u8 chains_dynamic) { - struct phy_ctx_used_data data = { - .used = { }, - }; - - /* - * If this is a regular PHY context (not the ROC one) - * skip the ROC PHY context's ID. - */ - if (ctxt != &mvm->phy_ctxt_roc) - __set_bit(mvm->phy_ctxt_roc.id, data.used); - + WARN_ON(!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && + ctxt->ref); lockdep_assert_held(&mvm->mutex); - ctxt->color++; - - if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { - ieee80211_iter_chan_contexts_atomic( - mvm->hw, iwl_mvm_phy_ctx_used_iter, &data); - - ctxt->id = find_first_zero_bit(data.used, NUM_PHY_CTX); - if (WARN_ONCE(ctxt->id == NUM_PHY_CTX, - "Failed to init PHY context - no free ID!\n")) - return -EIO; - } ctxt->channel = chandef->chan; + return iwl_mvm_phy_ctxt_apply(mvm, ctxt, chandef, chains_static, chains_dynamic, FW_CTXT_ACTION_ADD, 0); } /* + * Update the number of references to the given PHY context. This is valid only + * in case the PHY context was already created, i.e., its reference count > 0. + */ +void iwl_mvm_phy_ctxt_ref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt) +{ + lockdep_assert_held(&mvm->mutex); + ctxt->ref++; +} + +/* * Send a command to modify the PHY context based on the current HW * configuration. Note that the function does not check that the configuration * changed. @@ -264,23 +252,12 @@ int iwl_mvm_phy_ctxt_changed(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt, FW_CTXT_ACTION_MODIFY, 0); } -/* - * Send a command to the FW to remove the given phy context. - * Once the command is sent, regardless of success or failure, the context is - * marked as invalid - */ -void iwl_mvm_phy_ctxt_remove(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt) +void iwl_mvm_phy_ctxt_unref(struct iwl_mvm *mvm, struct iwl_mvm_phy_ctxt *ctxt) { - struct iwl_phy_context_cmd cmd; - int ret; - lockdep_assert_held(&mvm->mutex); - iwl_mvm_phy_ctxt_cmd_hdr(ctxt, &cmd, FW_CTXT_ACTION_REMOVE, 0); - ret = iwl_mvm_send_cmd_pdu(mvm, PHY_CONTEXT_CMD, CMD_SYNC, - sizeof(struct iwl_phy_context_cmd), - &cmd); - if (ret) - IWL_ERR(mvm, "Failed to send PHY remove: ctxt id=%d\n", - ctxt->id); + if (WARN_ON_ONCE(!ctxt)) + return; + + ctxt->ref--; } diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c index ed77e437aac..c182a8baf68 100644 --- a/drivers/net/wireless/iwlwifi/mvm/power.c +++ b/drivers/net/wireless/iwlwifi/mvm/power.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -64,7 +64,6 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/init.h> #include <net/mac80211.h> @@ -75,27 +74,232 @@ #define POWER_KEEP_ALIVE_PERIOD_SEC 25 +static +int iwl_mvm_beacon_filter_send_cmd(struct iwl_mvm *mvm, + struct iwl_beacon_filter_cmd *cmd, + u32 flags) +{ + IWL_DEBUG_POWER(mvm, "ba_enable_beacon_abort is: %d\n", + le32_to_cpu(cmd->ba_enable_beacon_abort)); + IWL_DEBUG_POWER(mvm, "ba_escape_timer is: %d\n", + le32_to_cpu(cmd->ba_escape_timer)); + IWL_DEBUG_POWER(mvm, "bf_debug_flag is: %d\n", + le32_to_cpu(cmd->bf_debug_flag)); + IWL_DEBUG_POWER(mvm, "bf_enable_beacon_filter is: %d\n", + le32_to_cpu(cmd->bf_enable_beacon_filter)); + IWL_DEBUG_POWER(mvm, "bf_energy_delta is: %d\n", + le32_to_cpu(cmd->bf_energy_delta)); + IWL_DEBUG_POWER(mvm, "bf_escape_timer is: %d\n", + le32_to_cpu(cmd->bf_escape_timer)); + IWL_DEBUG_POWER(mvm, "bf_roaming_energy_delta is: %d\n", + le32_to_cpu(cmd->bf_roaming_energy_delta)); + IWL_DEBUG_POWER(mvm, "bf_roaming_state is: %d\n", + le32_to_cpu(cmd->bf_roaming_state)); + IWL_DEBUG_POWER(mvm, "bf_temp_threshold is: %d\n", + le32_to_cpu(cmd->bf_temp_threshold)); + IWL_DEBUG_POWER(mvm, "bf_temp_fast_filter is: %d\n", + le32_to_cpu(cmd->bf_temp_fast_filter)); + IWL_DEBUG_POWER(mvm, "bf_temp_slow_filter is: %d\n", + le32_to_cpu(cmd->bf_temp_slow_filter)); + + return iwl_mvm_send_cmd_pdu(mvm, REPLY_BEACON_FILTERING_CMD, flags, + sizeof(struct iwl_beacon_filter_cmd), cmd); +} + +static +void iwl_mvm_beacon_filter_set_cqm_params(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_beacon_filter_cmd *cmd) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (vif->bss_conf.cqm_rssi_thold) { + cmd->bf_energy_delta = + cpu_to_le32(vif->bss_conf.cqm_rssi_hyst); + /* fw uses an absolute value for this */ + cmd->bf_roaming_state = + cpu_to_le32(-vif->bss_conf.cqm_rssi_thold); + } + cmd->ba_enable_beacon_abort = cpu_to_le32(mvmvif->bf_data.ba_enabled); +} + static void iwl_mvm_power_log(struct iwl_mvm *mvm, - struct iwl_powertable_cmd *cmd) + struct iwl_mac_power_cmd *cmd) { IWL_DEBUG_POWER(mvm, - "Sending power table command for power level %d, flags = 0x%X\n", - iwlmvm_mod_params.power_scheme, + "Sending power table command on mac id 0x%X for power level %d, flags = 0x%X\n", + cmd->id_and_color, iwlmvm_mod_params.power_scheme, le16_to_cpu(cmd->flags)); - IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n", cmd->keep_alive_seconds); + IWL_DEBUG_POWER(mvm, "Keep alive = %u sec\n", + le16_to_cpu(cmd->keep_alive_seconds)); + + if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) { + IWL_DEBUG_POWER(mvm, "Disable power management\n"); + return; + } - if (cmd->flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK)) { - IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n", - le32_to_cpu(cmd->rx_data_timeout)); - IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n", - le32_to_cpu(cmd->tx_data_timeout)); + IWL_DEBUG_POWER(mvm, "Rx timeout = %u usec\n", + le32_to_cpu(cmd->rx_data_timeout)); + IWL_DEBUG_POWER(mvm, "Tx timeout = %u usec\n", + le32_to_cpu(cmd->tx_data_timeout)); + if (cmd->flags & cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) + IWL_DEBUG_POWER(mvm, "DTIM periods to skip = %u\n", + cmd->skip_dtim_periods); + if (cmd->flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK)) IWL_DEBUG_POWER(mvm, "LP RX RSSI threshold = %u\n", cmd->lprx_rssi_threshold); + if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) { + IWL_DEBUG_POWER(mvm, "uAPSD enabled\n"); + IWL_DEBUG_POWER(mvm, "Rx timeout (uAPSD) = %u usec\n", + le32_to_cpu(cmd->rx_data_timeout_uapsd)); + IWL_DEBUG_POWER(mvm, "Tx timeout (uAPSD) = %u usec\n", + le32_to_cpu(cmd->tx_data_timeout_uapsd)); + IWL_DEBUG_POWER(mvm, "QNDP TID = %d\n", cmd->qndp_tid); + IWL_DEBUG_POWER(mvm, "ACs flags = 0x%x\n", cmd->uapsd_ac_flags); + IWL_DEBUG_POWER(mvm, "Max SP = %d\n", cmd->uapsd_max_sp); + } +} + +static void iwl_mvm_power_configure_uapsd(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_mac_power_cmd *cmd) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + enum ieee80211_ac_numbers ac; + bool tid_found = false; + + for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_BK; ac++) { + if (!mvmvif->queue_params[ac].uapsd) + continue; + + if (mvm->cur_ucode != IWL_UCODE_WOWLAN) + cmd->flags |= + cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK); + + cmd->uapsd_ac_flags |= BIT(ac); + + /* QNDP TID - the highest TID with no admission control */ + if (!tid_found && !mvmvif->queue_params[ac].acm) { + tid_found = true; + switch (ac) { + case IEEE80211_AC_VO: + cmd->qndp_tid = 6; + break; + case IEEE80211_AC_VI: + cmd->qndp_tid = 5; + break; + case IEEE80211_AC_BE: + cmd->qndp_tid = 0; + break; + case IEEE80211_AC_BK: + cmd->qndp_tid = 1; + break; + } + } + } + + if (!(cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) + return; + + cmd->flags |= cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK); + + if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) | + BIT(IEEE80211_AC_VI) | + BIT(IEEE80211_AC_BE) | + BIT(IEEE80211_AC_BK))) { + cmd->flags |= cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); + cmd->snooze_interval = cpu_to_le16(IWL_MVM_PS_SNOOZE_INTERVAL); + cmd->snooze_window = (mvm->cur_ucode == IWL_UCODE_WOWLAN) ? + cpu_to_le16(IWL_MVM_WOWLAN_PS_SNOOZE_WINDOW) : + cpu_to_le16(IWL_MVM_PS_SNOOZE_WINDOW); } + + cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP; + + if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags & + cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { + cmd->rx_data_timeout_uapsd = + cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT); + cmd->tx_data_timeout_uapsd = + cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT); + } else { + cmd->rx_data_timeout_uapsd = + cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT); + cmd->tx_data_timeout_uapsd = + cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT); + } + + if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) { + cmd->heavy_tx_thld_packets = + IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS; + cmd->heavy_rx_thld_packets = + IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS; + } else { + cmd->heavy_tx_thld_packets = + IWL_MVM_PS_HEAVY_TX_THLD_PACKETS; + cmd->heavy_rx_thld_packets = + IWL_MVM_PS_HEAVY_RX_THLD_PACKETS; + } + cmd->heavy_tx_thld_percentage = + IWL_MVM_PS_HEAVY_TX_THLD_PERCENT; + cmd->heavy_rx_thld_percentage = + IWL_MVM_PS_HEAVY_RX_THLD_PERCENT; } -void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - struct iwl_powertable_cmd *cmd) +static void iwl_mvm_binding_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + unsigned long *data = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (!mvmvif->phy_ctxt) + return; + + if (vif->type == NL80211_IFTYPE_STATION || + vif->type == NL80211_IFTYPE_AP) + __set_bit(mvmvif->phy_ctxt->id, data); +} + +static bool iwl_mvm_power_allow_uapsd(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + unsigned long phy_ctxt_counter = 0; + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_binding_iterator, + &phy_ctxt_counter); + + if (!memcmp(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, + ETH_ALEN)) + return false; + + if (vif->p2p && + !(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PS_UAPSD)) + return false; + /* + * Avoid using uAPSD if P2P client is associated to GO that uses + * opportunistic power save. This is due to current FW limitation. + */ + if (vif->p2p && + (vif->bss_conf.p2p_noa_attr.oppps_ctwindow & + IEEE80211_P2P_OPPPS_ENABLE_BIT)) + return false; + + /* + * Avoid using uAPSD if client is in DCM - + * low latency issue in Miracast + */ + if (hweight8(phy_ctxt_counter) >= 2) + return false; + + return true; +} + +static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_mac_power_cmd *cmd) { struct ieee80211_hw *hw = mvm->hw; struct ieee80211_chanctx_conf *chanctx_conf; @@ -103,25 +307,42 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, int dtimper, dtimper_msec; int keep_alive; bool radar_detect = false; + struct iwl_mvm_vif *mvmvif __maybe_unused = + iwl_mvm_vif_from_mac80211(vif); + + cmd->id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, + mvmvif->color)); + dtimper = hw->conf.ps_dtim_period ?: 1; /* * Regardless of power management state the driver must set * keep alive period. FW will use it for sending keep alive NDPs - * immediately after association. + * immediately after association. Check that keep alive period + * is at least 3 * DTIM */ - cmd->keep_alive_seconds = POWER_KEEP_ALIVE_PERIOD_SEC; + dtimper_msec = dtimper * vif->bss_conf.beacon_int; + keep_alive = max_t(int, 3 * dtimper_msec, + MSEC_PER_SEC * POWER_KEEP_ALIVE_PERIOD_SEC); + keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC); + cmd->keep_alive_seconds = cpu_to_le16(keep_alive); - if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) + if (mvm->ps_disabled) return; cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK); - if (!vif->bss_conf.ps) + if (!vif->bss_conf.ps || iwl_mvm_vif_low_latency(mvmvif) || + !mvmvif->pm_enabled) return; cmd->flags |= cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK); - dtimper = hw->conf.ps_dtim_period ?: 1; + if (vif->bss_conf.beacon_rate && + (vif->bss_conf.beacon_rate->bitrate == 10 || + vif->bss_conf.beacon_rate->bitrate == 60)) { + cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK); + cmd->lprx_rssi_threshold = POWER_LPRX_RSSI_THRESHOLD; + } /* Check if radar detection is required on current channel */ rcu_read_lock(); @@ -135,46 +356,581 @@ void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm, struct ieee80211_vif *vif, /* Check skip over DTIM conditions */ if (!radar_detect && (dtimper <= 10) && - (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP)) + (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_LP || + mvm->cur_ucode == IWL_UCODE_WOWLAN)) { cmd->flags |= cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); + cmd->skip_dtim_periods = 3; + } - /* Check that keep alive period is at least 3 * DTIM */ - dtimper_msec = dtimper * vif->bss_conf.beacon_int; - keep_alive = max_t(int, 3 * dtimper_msec, - MSEC_PER_SEC * cmd->keep_alive_seconds); - keep_alive = DIV_ROUND_UP(keep_alive, MSEC_PER_SEC); - cmd->keep_alive_seconds = keep_alive; + if (mvm->cur_ucode != IWL_UCODE_WOWLAN) { + cmd->rx_data_timeout = + cpu_to_le32(IWL_MVM_DEFAULT_PS_RX_DATA_TIMEOUT); + cmd->tx_data_timeout = + cpu_to_le32(IWL_MVM_DEFAULT_PS_TX_DATA_TIMEOUT); + } else { + cmd->rx_data_timeout = + cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT); + cmd->tx_data_timeout = + cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT); + } + + if (iwl_mvm_power_allow_uapsd(mvm, vif)) + iwl_mvm_power_configure_uapsd(mvm, vif, cmd); - cmd->rx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC); - cmd->tx_data_timeout = cpu_to_le32(100 * USEC_PER_MSEC); +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_KEEP_ALIVE) + cmd->keep_alive_seconds = + cpu_to_le16(mvmvif->dbgfs_pm.keep_alive_seconds); + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_OVER_DTIM) { + if (mvmvif->dbgfs_pm.skip_over_dtim) + cmd->flags |= + cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); + else + cmd->flags &= + cpu_to_le16(~POWER_FLAGS_SKIP_OVER_DTIM_MSK); + } + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_RX_DATA_TIMEOUT) + cmd->rx_data_timeout = + cpu_to_le32(mvmvif->dbgfs_pm.rx_data_timeout); + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_TX_DATA_TIMEOUT) + cmd->tx_data_timeout = + cpu_to_le32(mvmvif->dbgfs_pm.tx_data_timeout); + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SKIP_DTIM_PERIODS) + cmd->skip_dtim_periods = mvmvif->dbgfs_pm.skip_dtim_periods; + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_ENA) { + if (mvmvif->dbgfs_pm.lprx_ena) + cmd->flags |= cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK); + else + cmd->flags &= cpu_to_le16(~POWER_FLAGS_LPRX_ENA_MSK); + } + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_LPRX_RSSI_THRESHOLD) + cmd->lprx_rssi_threshold = mvmvif->dbgfs_pm.lprx_rssi_threshold; + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_SNOOZE_ENABLE) { + if (mvmvif->dbgfs_pm.snooze_ena) + cmd->flags |= + cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK); + else + cmd->flags &= + cpu_to_le16(~POWER_FLAGS_SNOOZE_ENA_MSK); + } + if (mvmvif->dbgfs_pm.mask & MVM_DEBUGFS_PM_UAPSD_MISBEHAVING) { + u16 flag = POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK; + if (mvmvif->dbgfs_pm.uapsd_misbehaving) + cmd->flags |= cpu_to_le16(flag); + else + cmd->flags &= cpu_to_le16(flag); + } +#endif /* CONFIG_IWLWIFI_DEBUGFS */ } -int iwl_mvm_power_update_mode(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +static int iwl_mvm_power_send_cmd(struct iwl_mvm *mvm, + struct ieee80211_vif *vif) { - struct iwl_powertable_cmd cmd = {}; - - if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) - return 0; + struct iwl_mac_power_cmd cmd = {}; iwl_mvm_power_build_cmd(mvm, vif, &cmd); iwl_mvm_power_log(mvm, &cmd); +#ifdef CONFIG_IWLWIFI_DEBUGFS + memcpy(&iwl_mvm_vif_from_mac80211(vif)->mac_pwr_cmd, &cmd, sizeof(cmd)); +#endif - return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC, + return iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, 0, sizeof(cmd), &cmd); } -int iwl_mvm_power_disable(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +int iwl_mvm_power_update_device(struct iwl_mvm *mvm) +{ + struct iwl_device_power_cmd cmd = { + .flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK), + }; + + if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) + mvm->ps_disabled = true; + + if (mvm->ps_disabled) + cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK); + +#ifdef CONFIG_IWLWIFI_DEBUGFS + if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 : + mvm->disable_power_off) + cmd.flags &= + cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK); +#endif + IWL_DEBUG_POWER(mvm, + "Sending device power command with flags = 0x%X\n", + cmd.flags); + + return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, 0, sizeof(cmd), + &cmd); +} + +void iwl_mvm_power_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (memcmp(vif->bss_conf.bssid, mvmvif->uapsd_misbehaving_bssid, + ETH_ALEN)) + memset(mvmvif->uapsd_misbehaving_bssid, 0, ETH_ALEN); +} + +static void iwl_mvm_power_uapsd_misbehav_ap_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + u8 *ap_sta_id = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + /* The ap_sta_id is not expected to change during current association + * so no explicit protection is needed + */ + if (mvmvif->ap_sta_id == *ap_sta_id) + memcpy(mvmvif->uapsd_misbehaving_bssid, vif->bss_conf.bssid, + ETH_ALEN); +} + +int iwl_mvm_power_uapsd_misbehaving_ap_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_uapsd_misbehaving_ap_notif *notif = (void *)pkt->data; + u8 ap_sta_id = le32_to_cpu(notif->sta_id); + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_power_uapsd_misbehav_ap_iterator, &ap_sta_id); + + return 0; +} + +struct iwl_power_vifs { + struct ieee80211_vif *bf_vif; + struct ieee80211_vif *bss_vif; + struct ieee80211_vif *p2p_vif; + struct ieee80211_vif *ap_vif; + struct ieee80211_vif *monitor_vif; + bool p2p_active; + bool bss_active; + bool ap_active; + bool monitor_active; +}; + +static void iwl_mvm_power_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_power_vifs *power_iterator = _data; + + mvmvif->pm_enabled = false; + switch (ieee80211_vif_type_p2p(vif)) { + case NL80211_IFTYPE_P2P_DEVICE: + break; + + case NL80211_IFTYPE_P2P_GO: + case NL80211_IFTYPE_AP: + /* only a single MAC of the same type */ + WARN_ON(power_iterator->ap_vif); + power_iterator->ap_vif = vif; + if (mvmvif->phy_ctxt) + if (mvmvif->phy_ctxt->id < MAX_PHYS) + power_iterator->ap_active = true; + break; + + case NL80211_IFTYPE_MONITOR: + /* only a single MAC of the same type */ + WARN_ON(power_iterator->monitor_vif); + power_iterator->monitor_vif = vif; + if (mvmvif->phy_ctxt) + if (mvmvif->phy_ctxt->id < MAX_PHYS) + power_iterator->monitor_active = true; + break; + + case NL80211_IFTYPE_P2P_CLIENT: + /* only a single MAC of the same type */ + WARN_ON(power_iterator->p2p_vif); + power_iterator->p2p_vif = vif; + if (mvmvif->phy_ctxt) + if (mvmvif->phy_ctxt->id < MAX_PHYS) + power_iterator->p2p_active = true; + break; + + case NL80211_IFTYPE_STATION: + /* only a single MAC of the same type */ + WARN_ON(power_iterator->bss_vif); + power_iterator->bss_vif = vif; + if (mvmvif->phy_ctxt) + if (mvmvif->phy_ctxt->id < MAX_PHYS) + power_iterator->bss_active = true; + + if (mvmvif->bf_data.bf_enabled && + !WARN_ON(power_iterator->bf_vif)) + power_iterator->bf_vif = vif; + + break; + + default: + break; + } +} + +static void +iwl_mvm_power_set_pm(struct iwl_mvm *mvm, + struct iwl_power_vifs *vifs) +{ + struct iwl_mvm_vif *bss_mvmvif = NULL; + struct iwl_mvm_vif *p2p_mvmvif = NULL; + struct iwl_mvm_vif *ap_mvmvif = NULL; + bool client_same_channel = false; + bool ap_same_channel = false; + + lockdep_assert_held(&mvm->mutex); + + /* get vifs info + set pm_enable to false */ + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_power_iterator, vifs); + + if (vifs->bss_vif) + bss_mvmvif = iwl_mvm_vif_from_mac80211(vifs->bss_vif); + + if (vifs->p2p_vif) + p2p_mvmvif = iwl_mvm_vif_from_mac80211(vifs->p2p_vif); + + if (vifs->ap_vif) + ap_mvmvif = iwl_mvm_vif_from_mac80211(vifs->ap_vif); + + /* enable PM on bss if bss stand alone */ + if (vifs->bss_active && !vifs->p2p_active && !vifs->ap_active) { + bss_mvmvif->pm_enabled = true; + return; + } + + /* enable PM on p2p if p2p stand alone */ + if (vifs->p2p_active && !vifs->bss_active && !vifs->ap_active) { + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM) + p2p_mvmvif->pm_enabled = true; + return; + } + + if (vifs->bss_active && vifs->p2p_active) + client_same_channel = (bss_mvmvif->phy_ctxt->id == + p2p_mvmvif->phy_ctxt->id); + if (vifs->bss_active && vifs->ap_active) + ap_same_channel = (bss_mvmvif->phy_ctxt->id == + ap_mvmvif->phy_ctxt->id); + + /* clients are not stand alone: enable PM if DCM */ + if (!(client_same_channel || ap_same_channel) && + (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_DCM)) { + if (vifs->bss_active) + bss_mvmvif->pm_enabled = true; + if (vifs->p2p_active && + (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM)) + p2p_mvmvif->pm_enabled = true; + return; + } + + /* + * There is only one channel in the system and there are only + * bss and p2p clients that share it + */ + if (client_same_channel && !vifs->ap_active && + (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BSS_P2P_PS_SCM)) { + /* share same channel*/ + bss_mvmvif->pm_enabled = true; + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_P2P_PM) + p2p_mvmvif->pm_enabled = true; + } +} + +#ifdef CONFIG_IWLWIFI_DEBUGFS +int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, char *buf, + int bufsz) { - struct iwl_powertable_cmd cmd = {}; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mac_power_cmd cmd = {}; + int pos = 0; + + mutex_lock(&mvm->mutex); + memcpy(&cmd, &mvmvif->mac_pwr_cmd, sizeof(cmd)); + mutex_unlock(&mvm->mutex); + + pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n", + iwlmvm_mod_params.power_scheme); + pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n", + le16_to_cpu(cmd.flags)); + pos += scnprintf(buf+pos, bufsz-pos, "keep_alive = %d\n", + le16_to_cpu(cmd.keep_alive_seconds)); + + if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK))) + return pos; + + pos += scnprintf(buf+pos, bufsz-pos, "skip_over_dtim = %d\n", + (cmd.flags & + cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK)) ? 1 : 0); + pos += scnprintf(buf+pos, bufsz-pos, "skip_dtim_periods = %d\n", + cmd.skip_dtim_periods); + if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) { + pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout = %d\n", + le32_to_cpu(cmd.rx_data_timeout)); + pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout = %d\n", + le32_to_cpu(cmd.tx_data_timeout)); + } + if (cmd.flags & cpu_to_le16(POWER_FLAGS_LPRX_ENA_MSK)) + pos += scnprintf(buf+pos, bufsz-pos, + "lprx_rssi_threshold = %d\n", + cmd.lprx_rssi_threshold); + + if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK))) + return pos; + + pos += scnprintf(buf+pos, bufsz-pos, "rx_data_timeout_uapsd = %d\n", + le32_to_cpu(cmd.rx_data_timeout_uapsd)); + pos += scnprintf(buf+pos, bufsz-pos, "tx_data_timeout_uapsd = %d\n", + le32_to_cpu(cmd.tx_data_timeout_uapsd)); + pos += scnprintf(buf+pos, bufsz-pos, "qndp_tid = %d\n", cmd.qndp_tid); + pos += scnprintf(buf+pos, bufsz-pos, "uapsd_ac_flags = 0x%x\n", + cmd.uapsd_ac_flags); + pos += scnprintf(buf+pos, bufsz-pos, "uapsd_max_sp = %d\n", + cmd.uapsd_max_sp); + pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_packets = %d\n", + cmd.heavy_tx_thld_packets); + pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_packets = %d\n", + cmd.heavy_rx_thld_packets); + pos += scnprintf(buf+pos, bufsz-pos, "heavy_tx_thld_percentage = %d\n", + cmd.heavy_tx_thld_percentage); + pos += scnprintf(buf+pos, bufsz-pos, "heavy_rx_thld_percentage = %d\n", + cmd.heavy_rx_thld_percentage); + pos += scnprintf(buf+pos, bufsz-pos, "uapsd_misbehaving_enable = %d\n", + (cmd.flags & + cpu_to_le16(POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK)) ? + 1 : 0); + + if (!(cmd.flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK))) + return pos; + + pos += scnprintf(buf+pos, bufsz-pos, "snooze_interval = %d\n", + cmd.snooze_interval); + pos += scnprintf(buf+pos, bufsz-pos, "snooze_window = %d\n", + cmd.snooze_window); + + return pos; +} + +void +iwl_mvm_beacon_filter_debugfs_parameters(struct ieee80211_vif *vif, + struct iwl_beacon_filter_cmd *cmd) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_dbgfs_bf *dbgfs_bf = &mvmvif->dbgfs_bf; + + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ENERGY_DELTA) + cmd->bf_energy_delta = cpu_to_le32(dbgfs_bf->bf_energy_delta); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_ENERGY_DELTA) + cmd->bf_roaming_energy_delta = + cpu_to_le32(dbgfs_bf->bf_roaming_energy_delta); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ROAMING_STATE) + cmd->bf_roaming_state = cpu_to_le32(dbgfs_bf->bf_roaming_state); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_THRESHOLD) + cmd->bf_temp_threshold = + cpu_to_le32(dbgfs_bf->bf_temp_threshold); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_FAST_FILTER) + cmd->bf_temp_fast_filter = + cpu_to_le32(dbgfs_bf->bf_temp_fast_filter); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_TEMP_SLOW_FILTER) + cmd->bf_temp_slow_filter = + cpu_to_le32(dbgfs_bf->bf_temp_slow_filter); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_DEBUG_FLAG) + cmd->bf_debug_flag = cpu_to_le32(dbgfs_bf->bf_debug_flag); + if (dbgfs_bf->mask & MVM_DEBUGFS_BF_ESCAPE_TIMER) + cmd->bf_escape_timer = cpu_to_le32(dbgfs_bf->bf_escape_timer); + if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ESCAPE_TIMER) + cmd->ba_escape_timer = cpu_to_le32(dbgfs_bf->ba_escape_timer); + if (dbgfs_bf->mask & MVM_DEBUGFS_BA_ENABLE_BEACON_ABORT) + cmd->ba_enable_beacon_abort = + cpu_to_le32(dbgfs_bf->ba_enable_beacon_abort); +} +#endif + +static int _iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct iwl_beacon_filter_cmd *cmd, + u32 cmd_flags, + bool d0i3) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + int ret; + + if (mvmvif != mvm->bf_allowed_vif || !vif->bss_conf.dtim_period || + vif->type != NL80211_IFTYPE_STATION || vif->p2p) + return 0; + + iwl_mvm_beacon_filter_set_cqm_params(mvm, vif, cmd); + if (!d0i3) + iwl_mvm_beacon_filter_debugfs_parameters(vif, cmd); + ret = iwl_mvm_beacon_filter_send_cmd(mvm, cmd, cmd_flags); + + /* don't change bf_enabled in case of temporary d0i3 configuration */ + if (!ret && !d0i3) + mvmvif->bf_data.bf_enabled = true; + + return ret; +} + +int iwl_mvm_enable_beacon_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 flags) +{ + struct iwl_beacon_filter_cmd cmd = { + IWL_BF_CMD_CONFIG_DEFAULTS, + .bf_enable_beacon_filter = cpu_to_le32(1), + }; + + return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, flags, false); +} + +static int iwl_mvm_update_beacon_abort(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool enable) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_beacon_filter_cmd cmd = { + IWL_BF_CMD_CONFIG_DEFAULTS, + .bf_enable_beacon_filter = cpu_to_le32(1), + }; + + if (!mvmvif->bf_data.bf_enabled) + return 0; + + if (mvm->cur_ucode == IWL_UCODE_WOWLAN) + cmd.ba_escape_timer = cpu_to_le32(IWL_BA_ESCAPE_TIMER_D3); + + mvmvif->bf_data.ba_enabled = enable; + return _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd, 0, false); +} + +int iwl_mvm_disable_beacon_filter(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + u32 flags) +{ + struct iwl_beacon_filter_cmd cmd = {}; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + int ret; if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) return 0; - if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM) - cmd.flags |= cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK); + ret = iwl_mvm_beacon_filter_send_cmd(mvm, &cmd, flags); + + if (!ret) + mvmvif->bf_data.bf_enabled = false; + + return ret; +} + +int iwl_mvm_power_update_mac(struct iwl_mvm *mvm) +{ + struct iwl_mvm_vif *mvmvif; + struct iwl_power_vifs vifs = {}; + bool ba_enable; + int ret; + + lockdep_assert_held(&mvm->mutex); + + iwl_mvm_power_set_pm(mvm, &vifs); + + /* disable PS if CAM */ + if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM) { + mvm->ps_disabled = true; + } else { + /* don't update device power state unless we add / remove monitor */ + if (vifs.monitor_vif) { + if (vifs.monitor_active) + mvm->ps_disabled = true; + ret = iwl_mvm_power_update_device(mvm); + if (ret) + return ret; + } + } + + if (vifs.bss_vif) { + ret = iwl_mvm_power_send_cmd(mvm, vifs.bss_vif); + if (ret) + return ret; + } + if (vifs.p2p_vif) { + ret = iwl_mvm_power_send_cmd(mvm, vifs.p2p_vif); + if (ret) + return ret; + } + + if (!vifs.bf_vif) + return 0; + + mvmvif = iwl_mvm_vif_from_mac80211(vifs.bf_vif); + + ba_enable = !(!mvmvif->pm_enabled || mvm->ps_disabled || + !vifs.bf_vif->bss_conf.ps || + iwl_mvm_vif_low_latency(mvmvif)); + + return iwl_mvm_update_beacon_abort(mvm, vifs.bf_vif, ba_enable); +} + +int iwl_mvm_update_d0i3_power_mode(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + bool enable, u32 flags) +{ + int ret; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + struct iwl_mac_power_cmd cmd = {}; + + if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) + return 0; + + if (!vif->bss_conf.assoc) + return 0; + + iwl_mvm_power_build_cmd(mvm, vif, &cmd); + if (enable) { + /* configure skip over dtim up to 300 msec */ + int dtimper = mvm->hw->conf.ps_dtim_period ?: 1; + int dtimper_msec = dtimper * vif->bss_conf.beacon_int; + + if (WARN_ON(!dtimper_msec)) + return 0; + + cmd.skip_dtim_periods = 300 / dtimper_msec; + if (cmd.skip_dtim_periods) + cmd.flags |= + cpu_to_le16(POWER_FLAGS_SKIP_OVER_DTIM_MSK); + } iwl_mvm_power_log(mvm, &cmd); +#ifdef CONFIG_IWLWIFI_DEBUGFS + memcpy(&mvmvif->mac_pwr_cmd, &cmd, sizeof(cmd)); +#endif + ret = iwl_mvm_send_cmd_pdu(mvm, MAC_PM_POWER_TABLE, flags, + sizeof(cmd), &cmd); + if (ret) + return ret; - return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_ASYNC, - sizeof(cmd), &cmd); + /* configure beacon filtering */ + if (mvmvif != mvm->bf_allowed_vif) + return 0; + + if (enable) { + struct iwl_beacon_filter_cmd cmd_bf = { + IWL_BF_CMD_CONFIG_D0I3, + .bf_enable_beacon_filter = cpu_to_le32(1), + }; + ret = _iwl_mvm_enable_beacon_filter(mvm, vif, &cmd_bf, + flags, true); + } else { + if (mvmvif->bf_data.bf_enabled) + ret = iwl_mvm_enable_beacon_filter(mvm, vif, flags); + else + ret = iwl_mvm_disable_beacon_filter(mvm, vif, flags); + } + + return ret; } diff --git a/drivers/net/wireless/iwlwifi/mvm/quota.c b/drivers/net/wireless/iwlwifi/mvm/quota.c index a1e3e923ea3..ba68d7b8450 100644 --- a/drivers/net/wireless/iwlwifi/mvm/quota.c +++ b/drivers/net/wireless/iwlwifi/mvm/quota.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -65,9 +65,14 @@ #include "fw-api.h" #include "mvm.h" +#define QUOTA_100 IWL_MVM_MAX_QUOTA +#define QUOTA_LOWLAT_MIN ((QUOTA_100 * IWL_MVM_LOWLAT_QUOTA_MIN_PERCENT) / 100) + struct iwl_mvm_quota_iterator_data { int n_interfaces[MAX_BINDINGS]; int colors[MAX_BINDINGS]; + int low_latency[MAX_BINDINGS]; + int n_low_latency_bindings; struct ieee80211_vif *new_vif; }; @@ -107,47 +112,83 @@ static void iwl_mvm_quota_iterator(void *_data, u8 *mac, switch (vif->type) { case NL80211_IFTYPE_STATION: if (vif->bss_conf.assoc) - data->n_interfaces[id]++; - break; + break; + return; case NL80211_IFTYPE_AP: - if (mvmvif->ap_active) - data->n_interfaces[id]++; - break; + case NL80211_IFTYPE_ADHOC: + if (mvmvif->ap_ibss_active) + break; + return; case NL80211_IFTYPE_MONITOR: if (mvmvif->monitor_active) - data->n_interfaces[id]++; - break; + break; + return; case NL80211_IFTYPE_P2P_DEVICE: - break; - case NL80211_IFTYPE_ADHOC: - if (vif->bss_conf.ibss_joined) - data->n_interfaces[id]++; - break; + return; default: WARN_ON_ONCE(1); - break; + return; + } + + data->n_interfaces[id]++; + + if (iwl_mvm_vif_low_latency(mvmvif) && !data->low_latency[id]) { + data->n_low_latency_bindings++; + data->low_latency[id] = true; } } +static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm, + struct iwl_time_quota_cmd *cmd) +{ +#ifdef CONFIG_NL80211_TESTMODE + struct iwl_mvm_vif *mvmvif; + int i, phy_id = -1, beacon_int = 0; + + if (!mvm->noa_duration || !mvm->noa_vif) + return; + + mvmvif = iwl_mvm_vif_from_mac80211(mvm->noa_vif); + if (!mvmvif->ap_ibss_active) + return; + + phy_id = mvmvif->phy_ctxt->id; + beacon_int = mvm->noa_vif->bss_conf.beacon_int; + + for (i = 0; i < MAX_BINDINGS; i++) { + u32 id_n_c = le32_to_cpu(cmd->quotas[i].id_and_color); + u32 id = (id_n_c & FW_CTXT_ID_MSK) >> FW_CTXT_ID_POS; + u32 quota = le32_to_cpu(cmd->quotas[i].quota); + + if (id != phy_id) + continue; + + quota *= (beacon_int - mvm->noa_duration); + quota /= beacon_int; + + cmd->quotas[i].quota = cpu_to_le32(quota); + } +#endif +} + int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif) { - struct iwl_time_quota_cmd cmd; - int i, idx, ret, num_active_bindings, quota, quota_rem; + struct iwl_time_quota_cmd cmd = {}; + int i, idx, ret, num_active_macs, quota, quota_rem, n_non_lowlat; struct iwl_mvm_quota_iterator_data data = { .n_interfaces = {}, .colors = { -1, -1, -1, -1 }, .new_vif = newvif, }; + lockdep_assert_held(&mvm->mutex); + /* update all upon completion */ if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) return 0; - BUILD_BUG_ON(data.colors[MAX_BINDINGS - 1] != -1); - - lockdep_assert_held(&mvm->mutex); - - memset(&cmd, 0, sizeof(cmd)); + /* iterator data above must match */ + BUILD_BUG_ON(MAX_BINDINGS != 4); ieee80211_iterate_active_interfaces_atomic( mvm->hw, IEEE80211_IFACE_ITER_NORMAL, @@ -162,35 +203,89 @@ int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif) * IWL_MVM_MAX_QUOTA fragments. Divide these fragments * equally between all the bindings that require quota */ - num_active_bindings = 0; + num_active_macs = 0; for (i = 0; i < MAX_BINDINGS; i++) { cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); - if (data.n_interfaces[i] > 0) - num_active_bindings++; + num_active_macs += data.n_interfaces[i]; } - if (!num_active_bindings) - goto send_cmd; + n_non_lowlat = num_active_macs; - quota = IWL_MVM_MAX_QUOTA / num_active_bindings; - quota_rem = IWL_MVM_MAX_QUOTA % num_active_bindings; + if (data.n_low_latency_bindings == 1) { + for (i = 0; i < MAX_BINDINGS; i++) { + if (data.low_latency[i]) { + n_non_lowlat -= data.n_interfaces[i]; + break; + } + } + } + + if (data.n_low_latency_bindings == 1 && n_non_lowlat) { + /* + * Reserve quota for the low latency binding in case that + * there are several data bindings but only a single + * low latency one. Split the rest of the quota equally + * between the other data interfaces. + */ + quota = (QUOTA_100 - QUOTA_LOWLAT_MIN) / n_non_lowlat; + quota_rem = QUOTA_100 - n_non_lowlat * quota - + QUOTA_LOWLAT_MIN; + } else if (num_active_macs) { + /* + * There are 0 or more than 1 low latency bindings, or all the + * data interfaces belong to the single low latency binding. + * Split the quota equally between the data interfaces. + */ + quota = QUOTA_100 / num_active_macs; + quota_rem = QUOTA_100 % num_active_macs; + } else { + /* values don't really matter - won't be used */ + quota = 0; + quota_rem = 0; + } for (idx = 0, i = 0; i < MAX_BINDINGS; i++) { - if (data.n_interfaces[i] <= 0) + if (data.colors[i] < 0) continue; cmd.quotas[idx].id_and_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(i, data.colors[i])); - cmd.quotas[idx].quota = cpu_to_le32(quota); - cmd.quotas[idx].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); + + if (data.n_interfaces[i] <= 0) + cmd.quotas[idx].quota = cpu_to_le32(0); + else if (data.n_low_latency_bindings == 1 && n_non_lowlat && + data.low_latency[i]) + /* + * There is more than one binding, but only one of the + * bindings is in low latency. For this case, allocate + * the minimal required quota for the low latency + * binding. + */ + cmd.quotas[idx].quota = cpu_to_le32(QUOTA_LOWLAT_MIN); + else + cmd.quotas[idx].quota = + cpu_to_le32(quota * data.n_interfaces[i]); + + WARN_ONCE(le32_to_cpu(cmd.quotas[idx].quota) > QUOTA_100, + "Binding=%d, quota=%u > max=%u\n", + idx, le32_to_cpu(cmd.quotas[idx].quota), QUOTA_100); + + cmd.quotas[idx].max_duration = cpu_to_le32(0); + idx++; } - /* Give the remainder of the session to the first binding */ - le32_add_cpu(&cmd.quotas[0].quota, quota_rem); + /* Give the remainder of the session to the first data binding */ + for (i = 0; i < MAX_BINDINGS; i++) { + if (le32_to_cpu(cmd.quotas[i].quota) != 0) { + le32_add_cpu(&cmd.quotas[i].quota, quota_rem); + break; + } + } + + iwl_mvm_adjust_quota_for_noa(mvm, &cmd); -send_cmd: - ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC, + ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, sizeof(cmd), &cmd); if (ret) IWL_ERR(mvm, "Failed to send quota: %d\n", ret); diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index 55334d542e2..306a6caa486 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -24,7 +24,6 @@ * *****************************************************************************/ #include <linux/kernel.h> -#include <linux/init.h> #include <linux/skbuff.h> #include <linux/slab.h> #include <net/mac80211.h> @@ -42,76 +41,298 @@ #define RS_NAME "iwl-mvm-rs" -#define NUM_TRY_BEFORE_ANT_TOGGLE 1 -#define IWL_NUMBER_TRY 1 -#define IWL_HT_NUMBER_TRY 3 +#define NUM_TRY_BEFORE_ANT_TOGGLE 1 +#define RS_LEGACY_RETRIES_PER_RATE 1 +#define RS_HT_VHT_RETRIES_PER_RATE 2 +#define RS_HT_VHT_RETRIES_PER_RATE_TW 1 +#define RS_INITIAL_MIMO_NUM_RATES 3 +#define RS_INITIAL_SISO_NUM_RATES 3 +#define RS_INITIAL_LEGACY_NUM_RATES LINK_QUAL_MAX_RETRY_NUM +#define RS_SECONDARY_LEGACY_NUM_RATES LINK_QUAL_MAX_RETRY_NUM +#define RS_SECONDARY_SISO_NUM_RATES 3 +#define RS_SECONDARY_SISO_RETRIES 1 #define IWL_RATE_MAX_WINDOW 62 /* # tx in history window */ -#define IWL_RATE_MIN_FAILURE_TH 6 /* min failures to calc tpt */ +#define IWL_RATE_MIN_FAILURE_TH 3 /* min failures to calc tpt */ #define IWL_RATE_MIN_SUCCESS_TH 8 /* min successes to calc tpt */ /* max allowed rate miss before sync LQ cmd */ #define IWL_MISSED_RATE_MAX 15 -/* max time to accum history 2 seconds */ -#define IWL_RATE_SCALE_FLUSH_INTVL (3*HZ) +#define RS_STAY_IN_COLUMN_TIMEOUT (5*HZ) +#define RS_IDLE_TIMEOUT (5*HZ) static u8 rs_ht_to_legacy[] = { - IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX, - IWL_RATE_6M_INDEX, IWL_RATE_6M_INDEX, - IWL_RATE_6M_INDEX, - IWL_RATE_6M_INDEX, IWL_RATE_9M_INDEX, - IWL_RATE_12M_INDEX, IWL_RATE_18M_INDEX, - IWL_RATE_24M_INDEX, IWL_RATE_36M_INDEX, - IWL_RATE_48M_INDEX, IWL_RATE_54M_INDEX + [IWL_RATE_MCS_0_INDEX] = IWL_RATE_6M_INDEX, + [IWL_RATE_MCS_1_INDEX] = IWL_RATE_9M_INDEX, + [IWL_RATE_MCS_2_INDEX] = IWL_RATE_12M_INDEX, + [IWL_RATE_MCS_3_INDEX] = IWL_RATE_18M_INDEX, + [IWL_RATE_MCS_4_INDEX] = IWL_RATE_24M_INDEX, + [IWL_RATE_MCS_5_INDEX] = IWL_RATE_36M_INDEX, + [IWL_RATE_MCS_6_INDEX] = IWL_RATE_48M_INDEX, + [IWL_RATE_MCS_7_INDEX] = IWL_RATE_54M_INDEX, + [IWL_RATE_MCS_8_INDEX] = IWL_RATE_54M_INDEX, + [IWL_RATE_MCS_9_INDEX] = IWL_RATE_54M_INDEX, }; static const u8 ant_toggle_lookup[] = { - /*ANT_NONE -> */ ANT_NONE, - /*ANT_A -> */ ANT_B, - /*ANT_B -> */ ANT_C, - /*ANT_AB -> */ ANT_BC, - /*ANT_C -> */ ANT_A, - /*ANT_AC -> */ ANT_AB, - /*ANT_BC -> */ ANT_AC, - /*ANT_ABC -> */ ANT_ABC, + [ANT_NONE] = ANT_NONE, + [ANT_A] = ANT_B, + [ANT_B] = ANT_C, + [ANT_AB] = ANT_BC, + [ANT_C] = ANT_A, + [ANT_AC] = ANT_AB, + [ANT_BC] = ANT_AC, + [ANT_ABC] = ANT_ABC, }; -#define IWL_DECLARE_RATE_INFO(r, s, ip, in, rp, rn, pp, np) \ - [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ - IWL_RATE_SISO_##s##M_PLCP, \ - IWL_RATE_MIMO2_##s##M_PLCP,\ - IWL_RATE_MIMO3_##s##M_PLCP,\ - IWL_RATE_##r##M_IEEE, \ - IWL_RATE_##ip##M_INDEX, \ - IWL_RATE_##in##M_INDEX, \ - IWL_RATE_##rp##M_INDEX, \ - IWL_RATE_##rn##M_INDEX, \ - IWL_RATE_##pp##M_INDEX, \ - IWL_RATE_##np##M_INDEX } +#define IWL_DECLARE_RATE_INFO(r, s, rp, rn) \ + [IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP, \ + IWL_RATE_HT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_HT_MIMO2_MCS_##s##_PLCP, \ + IWL_RATE_VHT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_VHT_MIMO2_MCS_##s##_PLCP,\ + IWL_RATE_##rp##M_INDEX, \ + IWL_RATE_##rn##M_INDEX } + +#define IWL_DECLARE_MCS_RATE(s) \ + [IWL_RATE_MCS_##s##_INDEX] = { IWL_RATE_INVM_PLCP, \ + IWL_RATE_HT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_HT_MIMO2_MCS_##s##_PLCP, \ + IWL_RATE_VHT_SISO_MCS_##s##_PLCP, \ + IWL_RATE_VHT_MIMO2_MCS_##s##_PLCP, \ + IWL_RATE_INVM_INDEX, \ + IWL_RATE_INVM_INDEX } /* * Parameter order: - * rate, ht rate, prev rate, next rate, prev tgg rate, next tgg rate + * rate, ht rate, prev rate, next rate * * If there isn't a valid next or previous rate then INV is used which * maps to IWL_RATE_INVALID * */ static const struct iwl_rs_rate_info iwl_rates[IWL_RATE_COUNT] = { - IWL_DECLARE_RATE_INFO(1, INV, INV, 2, INV, 2, INV, 2), /* 1mbps */ - IWL_DECLARE_RATE_INFO(2, INV, 1, 5, 1, 5, 1, 5), /* 2mbps */ - IWL_DECLARE_RATE_INFO(5, INV, 2, 6, 2, 11, 2, 11), /*5.5mbps */ - IWL_DECLARE_RATE_INFO(11, INV, 9, 12, 9, 12, 5, 18), /* 11mbps */ - IWL_DECLARE_RATE_INFO(6, 6, 5, 9, 5, 11, 5, 11), /* 6mbps */ - IWL_DECLARE_RATE_INFO(9, 6, 6, 11, 6, 11, 5, 11), /* 9mbps */ - IWL_DECLARE_RATE_INFO(12, 12, 11, 18, 11, 18, 11, 18), /* 12mbps */ - IWL_DECLARE_RATE_INFO(18, 18, 12, 24, 12, 24, 11, 24), /* 18mbps */ - IWL_DECLARE_RATE_INFO(24, 24, 18, 36, 18, 36, 18, 36), /* 24mbps */ - IWL_DECLARE_RATE_INFO(36, 36, 24, 48, 24, 48, 24, 48), /* 36mbps */ - IWL_DECLARE_RATE_INFO(48, 48, 36, 54, 36, 54, 36, 54), /* 48mbps */ - IWL_DECLARE_RATE_INFO(54, 54, 48, INV, 48, INV, 48, INV),/* 54mbps */ - IWL_DECLARE_RATE_INFO(60, 60, 48, INV, 48, INV, 48, INV),/* 60mbps */ - /* FIXME:RS: ^^ should be INV (legacy) */ + IWL_DECLARE_RATE_INFO(1, INV, INV, 2), /* 1mbps */ + IWL_DECLARE_RATE_INFO(2, INV, 1, 5), /* 2mbps */ + IWL_DECLARE_RATE_INFO(5, INV, 2, 11), /*5.5mbps */ + IWL_DECLARE_RATE_INFO(11, INV, 9, 12), /* 11mbps */ + IWL_DECLARE_RATE_INFO(6, 0, 5, 11), /* 6mbps ; MCS 0 */ + IWL_DECLARE_RATE_INFO(9, INV, 6, 11), /* 9mbps */ + IWL_DECLARE_RATE_INFO(12, 1, 11, 18), /* 12mbps ; MCS 1 */ + IWL_DECLARE_RATE_INFO(18, 2, 12, 24), /* 18mbps ; MCS 2 */ + IWL_DECLARE_RATE_INFO(24, 3, 18, 36), /* 24mbps ; MCS 3 */ + IWL_DECLARE_RATE_INFO(36, 4, 24, 48), /* 36mbps ; MCS 4 */ + IWL_DECLARE_RATE_INFO(48, 5, 36, 54), /* 48mbps ; MCS 5 */ + IWL_DECLARE_RATE_INFO(54, 6, 48, INV), /* 54mbps ; MCS 6 */ + IWL_DECLARE_MCS_RATE(7), /* MCS 7 */ + IWL_DECLARE_MCS_RATE(8), /* MCS 8 */ + IWL_DECLARE_MCS_RATE(9), /* MCS 9 */ +}; + +enum rs_action { + RS_ACTION_STAY = 0, + RS_ACTION_DOWNSCALE = -1, + RS_ACTION_UPSCALE = 1, +}; + +enum rs_column_mode { + RS_INVALID = 0, + RS_LEGACY, + RS_SISO, + RS_MIMO2, +}; + +#define MAX_NEXT_COLUMNS 7 +#define MAX_COLUMN_CHECKS 3 + +typedef bool (*allow_column_func_t) (struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + struct iwl_scale_tbl_info *tbl); + +struct rs_tx_column { + enum rs_column_mode mode; + u8 ant; + bool sgi; + enum rs_column next_columns[MAX_NEXT_COLUMNS]; + allow_column_func_t checks[MAX_COLUMN_CHECKS]; +}; + +static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, + struct iwl_scale_tbl_info *tbl) +{ + if (!sta->ht_cap.ht_supported) + return false; + + if (sta->smps_mode == IEEE80211_SMPS_STATIC) + return false; + + if (num_of_ant(mvm->fw->valid_tx_ant) < 2) + return false; + + if (!iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta)) + return false; + + return true; +} + +static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, + struct iwl_scale_tbl_info *tbl) +{ + if (!sta->ht_cap.ht_supported) + return false; + + return true; +} + +static bool rs_sgi_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, + struct iwl_scale_tbl_info *tbl) +{ + struct rs_rate *rate = &tbl->rate; + struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap; + + if (is_ht20(rate) && (ht_cap->cap & + IEEE80211_HT_CAP_SGI_20)) + return true; + if (is_ht40(rate) && (ht_cap->cap & + IEEE80211_HT_CAP_SGI_40)) + return true; + if (is_ht80(rate) && (vht_cap->cap & + IEEE80211_VHT_CAP_SHORT_GI_80)) + return true; + + return false; +} + +static const struct rs_tx_column rs_tx_columns[] = { + [RS_COLUMN_LEGACY_ANT_A] = { + .mode = RS_LEGACY, + .ant = ANT_A, + .next_columns = { + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_SISO_ANT_A, + RS_COLUMN_MIMO2, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + }, + [RS_COLUMN_LEGACY_ANT_B] = { + .mode = RS_LEGACY, + .ant = ANT_B, + .next_columns = { + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_SISO_ANT_B, + RS_COLUMN_MIMO2, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + }, + [RS_COLUMN_SISO_ANT_A] = { + .mode = RS_SISO, + .ant = ANT_A, + .next_columns = { + RS_COLUMN_SISO_ANT_B, + RS_COLUMN_MIMO2, + RS_COLUMN_SISO_ANT_A_SGI, + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + .checks = { + rs_siso_allow, + }, + }, + [RS_COLUMN_SISO_ANT_B] = { + .mode = RS_SISO, + .ant = ANT_B, + .next_columns = { + RS_COLUMN_SISO_ANT_A, + RS_COLUMN_MIMO2, + RS_COLUMN_SISO_ANT_B_SGI, + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + .checks = { + rs_siso_allow, + }, + }, + [RS_COLUMN_SISO_ANT_A_SGI] = { + .mode = RS_SISO, + .ant = ANT_A, + .sgi = true, + .next_columns = { + RS_COLUMN_SISO_ANT_B_SGI, + RS_COLUMN_MIMO2_SGI, + RS_COLUMN_SISO_ANT_A, + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + .checks = { + rs_siso_allow, + rs_sgi_allow, + }, + }, + [RS_COLUMN_SISO_ANT_B_SGI] = { + .mode = RS_SISO, + .ant = ANT_B, + .sgi = true, + .next_columns = { + RS_COLUMN_SISO_ANT_A_SGI, + RS_COLUMN_MIMO2_SGI, + RS_COLUMN_SISO_ANT_B, + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + .checks = { + rs_siso_allow, + rs_sgi_allow, + }, + }, + [RS_COLUMN_MIMO2] = { + .mode = RS_MIMO2, + .ant = ANT_AB, + .next_columns = { + RS_COLUMN_SISO_ANT_A, + RS_COLUMN_MIMO2_SGI, + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + .checks = { + rs_mimo_allow, + }, + }, + [RS_COLUMN_MIMO2_SGI] = { + .mode = RS_MIMO2, + .ant = ANT_AB, + .sgi = true, + .next_columns = { + RS_COLUMN_SISO_ANT_A_SGI, + RS_COLUMN_MIMO2, + RS_COLUMN_LEGACY_ANT_A, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + RS_COLUMN_INVALID, + }, + .checks = { + rs_mimo_allow, + rs_sgi_allow, + }, + }, }; static inline u8 rs_extract_rate(u32 rate_n_flags) @@ -124,51 +345,46 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags) { int idx = 0; - /* HT rate format */ if (rate_n_flags & RATE_MCS_HT_MSK) { - idx = rs_extract_rate(rate_n_flags); - - if (idx >= IWL_RATE_MIMO3_6M_PLCP) - idx = idx - IWL_RATE_MIMO3_6M_PLCP; - else if (idx >= IWL_RATE_MIMO2_6M_PLCP) - idx = idx - IWL_RATE_MIMO2_6M_PLCP; + idx = rate_n_flags & RATE_HT_MCS_RATE_CODE_MSK; + idx += IWL_RATE_MCS_0_INDEX; - idx += IWL_FIRST_OFDM_RATE; - /* skip 9M not supported in ht*/ + /* skip 9M not supported in HT*/ if (idx >= IWL_RATE_9M_INDEX) idx += 1; - if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE)) + if ((idx >= IWL_FIRST_HT_RATE) && (idx <= IWL_LAST_HT_RATE)) return idx; + } else if (rate_n_flags & RATE_MCS_VHT_MSK) { + idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK; + idx += IWL_RATE_MCS_0_INDEX; - /* legacy rate format, search for match in table */ + /* skip 9M not supported in VHT*/ + if (idx >= IWL_RATE_9M_INDEX) + idx++; + if ((idx >= IWL_FIRST_VHT_RATE) && (idx <= IWL_LAST_VHT_RATE)) + return idx; } else { + /* legacy rate format, search for match in table */ + + u8 legacy_rate = rs_extract_rate(rate_n_flags); for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++) - if (iwl_rates[idx].plcp == - rs_extract_rate(rate_n_flags)) + if (iwl_rates[idx].plcp == legacy_rate) return idx; } - return -1; + return IWL_RATE_INVALID; } static void rs_rate_scale_perform(struct iwl_mvm *mvm, struct sk_buff *skb, struct ieee80211_sta *sta, struct iwl_lq_sta *lq_sta); -static void rs_fill_link_cmd(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, u32 rate_n_flags); +static void rs_fill_lq_cmd(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + struct iwl_lq_sta *lq_sta, + const struct rs_rate *initial_rate); static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search); - -#ifdef CONFIG_MAC80211_DEBUGFS -static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, - u32 *rate_n_flags, int index); -#else -static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, - u32 *rate_n_flags, int index) -{} -#endif - /** * The following tables contain the expected throughput metrics for all rates * @@ -180,50 +396,53 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, * (2.4 GHz) band. */ -static s32 expected_tpt_legacy[IWL_RATE_COUNT] = { - 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0 +static const u16 expected_tpt_legacy[IWL_RATE_COUNT] = { + 7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0, 0, 0 }; -static s32 expected_tpt_siso20MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 42, 0, 76, 102, 124, 159, 183, 193, 202}, /* Norm */ - {0, 0, 0, 0, 46, 0, 82, 110, 132, 168, 192, 202, 210}, /* SGI */ - {0, 0, 0, 0, 47, 0, 91, 133, 171, 242, 305, 334, 362}, /* AGG */ - {0, 0, 0, 0, 52, 0, 101, 145, 187, 264, 330, 361, 390}, /* AGG+SGI */ +/* Expected TpT tables. 4 indexes: + * 0 - NGI, 1 - SGI, 2 - AGG+NGI, 3 - AGG+SGI + */ +static const u16 expected_tpt_siso_20MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 42, 0, 76, 102, 124, 159, 183, 193, 202, 216, 0}, + {0, 0, 0, 0, 46, 0, 82, 110, 132, 168, 192, 202, 210, 225, 0}, + {0, 0, 0, 0, 49, 0, 97, 145, 192, 285, 375, 420, 464, 551, 0}, + {0, 0, 0, 0, 54, 0, 108, 160, 213, 315, 415, 465, 513, 608, 0}, }; -static s32 expected_tpt_siso40MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */ - {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */ - {0, 0, 0, 0, 94, 0, 177, 249, 313, 423, 512, 550, 586}, /* AGG */ - {0, 0, 0, 0, 104, 0, 193, 270, 338, 454, 545, 584, 620}, /* AGG+SGI */ +static const u16 expected_tpt_siso_40MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 77, 0, 127, 160, 184, 220, 242, 250, 257, 269, 275}, + {0, 0, 0, 0, 83, 0, 135, 169, 193, 229, 250, 257, 264, 275, 280}, + {0, 0, 0, 0, 101, 0, 199, 295, 389, 570, 744, 828, 911, 1070, 1173}, + {0, 0, 0, 0, 112, 0, 220, 326, 429, 629, 819, 912, 1000, 1173, 1284}, }; -static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 74, 0, 123, 155, 179, 214, 236, 244, 251}, /* Norm */ - {0, 0, 0, 0, 81, 0, 131, 164, 188, 223, 243, 251, 257}, /* SGI */ - {0, 0, 0, 0, 89, 0, 167, 235, 296, 402, 488, 526, 560}, /* AGG */ - {0, 0, 0, 0, 97, 0, 182, 255, 320, 431, 520, 558, 593}, /* AGG+SGI*/ +static const u16 expected_tpt_siso_80MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 130, 0, 191, 223, 244, 273, 288, 294, 298, 305, 308}, + {0, 0, 0, 0, 138, 0, 200, 231, 251, 279, 293, 298, 302, 308, 312}, + {0, 0, 0, 0, 217, 0, 429, 634, 834, 1220, 1585, 1760, 1931, 2258, 2466}, + {0, 0, 0, 0, 241, 0, 475, 701, 921, 1343, 1741, 1931, 2117, 2468, 2691}, }; -static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */ - {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */ - {0, 0, 0, 0, 171, 0, 305, 410, 496, 634, 731, 771, 805}, /* AGG */ - {0, 0, 0, 0, 186, 0, 329, 439, 527, 667, 764, 803, 838}, /* AGG+SGI */ +static const u16 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 74, 0, 123, 155, 179, 213, 235, 243, 250, 261, 0}, + {0, 0, 0, 0, 81, 0, 131, 164, 187, 221, 242, 250, 256, 267, 0}, + {0, 0, 0, 0, 98, 0, 193, 286, 375, 550, 718, 799, 878, 1032, 0}, + {0, 0, 0, 0, 109, 0, 214, 316, 414, 607, 790, 879, 965, 1132, 0}, }; -static s32 expected_tpt_mimo3_20MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 99, 0, 153, 186, 208, 239, 256, 263, 268}, /* Norm */ - {0, 0, 0, 0, 106, 0, 162, 194, 215, 246, 262, 268, 273}, /* SGI */ - {0, 0, 0, 0, 134, 0, 249, 346, 431, 574, 685, 732, 775}, /* AGG */ - {0, 0, 0, 0, 148, 0, 272, 376, 465, 614, 727, 775, 818}, /* AGG+SGI */ +static const u16 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289, 296, 300}, + {0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293, 300, 303}, + {0, 0, 0, 0, 200, 0, 390, 571, 741, 1067, 1365, 1505, 1640, 1894, 2053}, + {0, 0, 0, 0, 221, 0, 430, 630, 816, 1169, 1490, 1641, 1784, 2053, 2221}, }; -static s32 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = { - {0, 0, 0, 0, 152, 0, 211, 239, 255, 279, 290, 294, 297}, /* Norm */ - {0, 0, 0, 0, 160, 0, 219, 245, 261, 284, 294, 297, 300}, /* SGI */ - {0, 0, 0, 0, 254, 0, 443, 584, 695, 868, 984, 1030, 1070}, /* AGG */ - {0, 0, 0, 0, 277, 0, 478, 624, 737, 911, 1026, 1070, 1109}, /* AGG+SGI */ +static const u16 expected_tpt_mimo2_80MHz[4][IWL_RATE_COUNT] = { + {0, 0, 0, 0, 182, 0, 240, 264, 278, 299, 308, 311, 313, 317, 319}, + {0, 0, 0, 0, 190, 0, 247, 269, 282, 302, 310, 313, 315, 319, 320}, + {0, 0, 0, 0, 428, 0, 833, 1215, 1577, 2254, 2863, 3147, 3418, 3913, 4219}, + {0, 0, 0, 0, 474, 0, 920, 1338, 1732, 2464, 3116, 3418, 3705, 4225, 4545}, }; /* mbps, mcs */ @@ -245,151 +464,77 @@ static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = { #define MCS_INDEX_PER_STREAM (8) -static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window) +static const char *rs_pretty_ant(u8 ant) { - window->data = 0; - window->success_counter = 0; - window->success_ratio = IWL_INVALID_VALUE; - window->counter = 0; - window->average_tpt = IWL_INVALID_VALUE; - window->stamp = 0; + static const char * const ant_name[] = { + [ANT_NONE] = "None", + [ANT_A] = "A", + [ANT_B] = "B", + [ANT_AB] = "AB", + [ANT_C] = "C", + [ANT_AC] = "AC", + [ANT_BC] = "BC", + [ANT_ABC] = "ABC", + }; + + if (ant > ANT_ABC) + return "UNKNOWN"; + + return ant_name[ant]; } -static inline u8 rs_is_valid_ant(u8 valid_antenna, u8 ant_type) +static const char *rs_pretty_lq_type(enum iwl_table_type type) { - return (ant_type & valid_antenna) == ant_type; + static const char * const lq_types[] = { + [LQ_NONE] = "NONE", + [LQ_LEGACY_A] = "LEGACY_A", + [LQ_LEGACY_G] = "LEGACY_G", + [LQ_HT_SISO] = "HT SISO", + [LQ_HT_MIMO2] = "HT MIMO", + [LQ_VHT_SISO] = "VHT SISO", + [LQ_VHT_MIMO2] = "VHT MIMO", + }; + + if (type < LQ_NONE || type >= LQ_MAX) + return "UNKNOWN"; + + return lq_types[type]; } -/* - * removes the old data from the statistics. All data that is older than - * TID_MAX_TIME_DIFF, will be deleted. - */ -static void rs_tl_rm_old_stats(struct iwl_traffic_load *tl, u32 curr_time) +static inline void rs_dump_rate(struct iwl_mvm *mvm, const struct rs_rate *rate, + const char *prefix) { - /* The oldest age we want to keep */ - u32 oldest_time = curr_time - TID_MAX_TIME_DIFF; - - while (tl->queue_count && - (tl->time_stamp < oldest_time)) { - tl->total -= tl->packet_count[tl->head]; - tl->packet_count[tl->head] = 0; - tl->time_stamp += TID_QUEUE_CELL_SPACING; - tl->queue_count--; - tl->head++; - if (tl->head >= TID_QUEUE_MAX_SIZE) - tl->head = 0; - } + IWL_DEBUG_RATE(mvm, "%s: (%s: %d) ANT: %s BW: %d SGI: %d\n", + prefix, rs_pretty_lq_type(rate->type), + rate->index, rs_pretty_ant(rate->ant), + rate->bw, rate->sgi); } -/* - * increment traffic load value for tid and also remove - * any old values if passed the certain time period - */ -static u8 rs_tl_add_packet(struct iwl_lq_sta *lq_data, - struct ieee80211_hdr *hdr) +static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window) { - u32 curr_time = jiffies_to_msecs(jiffies); - u32 time_diff; - s32 index; - struct iwl_traffic_load *tl = NULL; - u8 tid; - - if (ieee80211_is_data_qos(hdr->frame_control)) { - u8 *qc = ieee80211_get_qos_ctl(hdr); - tid = qc[0] & 0xf; - } else { - return IWL_MAX_TID_COUNT; - } - - if (unlikely(tid >= IWL_MAX_TID_COUNT)) - return IWL_MAX_TID_COUNT; - - tl = &lq_data->load[tid]; - - curr_time -= curr_time % TID_ROUND_VALUE; - - /* Happens only for the first packet. Initialize the data */ - if (!(tl->queue_count)) { - tl->total = 1; - tl->time_stamp = curr_time; - tl->queue_count = 1; - tl->head = 0; - tl->packet_count[0] = 1; - return IWL_MAX_TID_COUNT; - } - - time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time); - index = time_diff / TID_QUEUE_CELL_SPACING; - - /* The history is too long: remove data that is older than */ - /* TID_MAX_TIME_DIFF */ - if (index >= TID_QUEUE_MAX_SIZE) - rs_tl_rm_old_stats(tl, curr_time); - - index = (tl->head + index) % TID_QUEUE_MAX_SIZE; - tl->packet_count[index] = tl->packet_count[index] + 1; - tl->total = tl->total + 1; - - if ((index + 1) > tl->queue_count) - tl->queue_count = index + 1; - - return tid; + window->data = 0; + window->success_counter = 0; + window->success_ratio = IWL_INVALID_VALUE; + window->counter = 0; + window->average_tpt = IWL_INVALID_VALUE; } -#ifdef CONFIG_MAC80211_DEBUGFS -/** - * Program the device to use fixed rate for frame transmit - * This is for debugging/testing only - * once the device start use fixed rate, we need to reload the module - * to being back the normal operation. - */ -static void rs_program_fix_rate(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta) +static void rs_rate_scale_clear_tbl_windows(struct iwl_mvm *mvm, + struct iwl_scale_tbl_info *tbl) { - lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */ - lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ - lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ - lq_sta->active_mimo3_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ + int i; - IWL_DEBUG_RATE(mvm, "sta_id %d rate 0x%X\n", - lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate); + IWL_DEBUG_RATE(mvm, "Clearing up window stats\n"); + for (i = 0; i < IWL_RATE_COUNT; i++) + rs_rate_scale_clear_window(&tbl->win[i]); - if (lq_sta->dbg_fixed_rate) { - rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate); - iwl_mvm_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC, false); - } + for (i = 0; i < ARRAY_SIZE(tbl->tpc_win); i++) + rs_rate_scale_clear_window(&tbl->tpc_win[i]); } -#endif -/* - get the traffic load value for tid -*/ -static u32 rs_tl_get_load(struct iwl_lq_sta *lq_data, u8 tid) +static inline u8 rs_is_valid_ant(u8 valid_antenna, u8 ant_type) { - u32 curr_time = jiffies_to_msecs(jiffies); - u32 time_diff; - s32 index; - struct iwl_traffic_load *tl = NULL; - - if (tid >= IWL_MAX_TID_COUNT) - return 0; - - tl = &(lq_data->load[tid]); - - curr_time -= curr_time % TID_ROUND_VALUE; - - if (!(tl->queue_count)) - return 0; - - time_diff = TIME_WRAP_AROUND(tl->time_stamp, curr_time); - index = time_diff / TID_QUEUE_CELL_SPACING; - - /* The history is too long: remove data that is older than */ - /* TID_MAX_TIME_DIFF */ - if (index >= TID_QUEUE_MAX_SIZE) - rs_tl_rm_old_stats(tl, curr_time); - - return tl->total; + return (ant_type & valid_antenna) == ant_type; } static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm, @@ -397,28 +542,19 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm, struct ieee80211_sta *sta) { int ret = -EAGAIN; - u32 load; - - load = rs_tl_get_load(lq_data, tid); - if ((iwlwifi_mod_params.auto_agg) || (load > IWL_AGG_LOAD_THRESHOLD)) { - IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n", - sta->addr, tid); - ret = ieee80211_start_tx_ba_session(sta, tid, 5000); - if (ret == -EAGAIN) { - /* - * driver and mac80211 is out of sync - * this might be cause by reloading firmware - * stop the tx ba session here - */ - IWL_ERR(mvm, "Fail start Tx agg on tid: %d\n", - tid); - ieee80211_stop_tx_ba_session(sta, tid); - } - } else { - IWL_DEBUG_HT(mvm, - "Aggregation not enabled for tid %d because load = %u\n", - tid, load); + IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n", + sta->addr, tid); + ret = ieee80211_start_tx_ba_session(sta, tid, 5000); + if (ret == -EAGAIN) { + /* + * driver and mac80211 is out of sync + * this might be cause by reloading firmware + * stop the tx ba session here + */ + IWL_ERR(mvm, "Fail start Tx agg on tid: %d\n", + tid); + ieee80211_stop_tx_ba_session(sta, tid); } return ret; } @@ -459,19 +595,13 @@ static s32 get_expected_tpt(struct iwl_scale_tbl_info *tbl, int rs_index) * at this rate. window->data contains the bitmask of successful * packets. */ -static int rs_collect_tx_data(struct iwl_scale_tbl_info *tbl, - int scale_index, int attempts, int successes) +static int _rs_collect_tx_data(struct iwl_scale_tbl_info *tbl, + int scale_index, int attempts, int successes, + struct iwl_rate_scale_data *window) { - struct iwl_rate_scale_data *window = NULL; static const u64 mask = (((u64)1) << (IWL_RATE_MAX_WINDOW - 1)); s32 fail_count, tpt; - if (scale_index < 0 || scale_index >= IWL_RATE_COUNT) - return -EINVAL; - - /* Select window for current tx bit rate */ - window = &(tbl->win[scale_index]); - /* Get expected throughput */ tpt = get_expected_tpt(tbl, scale_index); @@ -526,191 +656,204 @@ static int rs_collect_tx_data(struct iwl_scale_tbl_info *tbl, else window->average_tpt = IWL_INVALID_VALUE; - /* Tag this window as having been updated */ - window->stamp = jiffies; - return 0; } -/* - * Fill uCode API rate_n_flags field, based on "search" or "active" table. - */ -/* FIXME:RS:remove this function and put the flags statically in the table */ -static u32 rate_n_flags_from_tbl(struct iwl_mvm *mvm, - struct iwl_scale_tbl_info *tbl, - int index, u8 use_green) +static int rs_collect_tx_data(struct iwl_lq_sta *lq_sta, + struct iwl_scale_tbl_info *tbl, + int scale_index, int attempts, int successes, + u8 reduced_txp) +{ + struct iwl_rate_scale_data *window = NULL; + int ret; + + if (scale_index < 0 || scale_index >= IWL_RATE_COUNT) + return -EINVAL; + + if (tbl->column != RS_COLUMN_INVALID) { + lq_sta->tx_stats[tbl->column][scale_index].total += attempts; + lq_sta->tx_stats[tbl->column][scale_index].success += successes; + } + + /* Select window for current tx bit rate */ + window = &(tbl->win[scale_index]); + + ret = _rs_collect_tx_data(tbl, scale_index, attempts, successes, + window); + if (ret) + return ret; + + if (WARN_ON_ONCE(reduced_txp > TPC_MAX_REDUCTION)) + return -EINVAL; + + window = &tbl->tpc_win[reduced_txp]; + return _rs_collect_tx_data(tbl, scale_index, attempts, successes, + window); +} + +/* Convert rs_rate object into ucode rate bitmask */ +static u32 ucode_rate_from_rs_rate(struct iwl_mvm *mvm, + struct rs_rate *rate) { - u32 rate_n_flags = 0; + u32 ucode_rate = 0; + int index = rate->index; - if (is_legacy(tbl->lq_type)) { - rate_n_flags = iwl_rates[index].plcp; + ucode_rate |= ((rate->ant << RATE_MCS_ANT_POS) & + RATE_MCS_ANT_ABC_MSK); + + if (is_legacy(rate)) { + ucode_rate |= iwl_rates[index].plcp; if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE) - rate_n_flags |= RATE_MCS_CCK_MSK; - } else if (is_Ht(tbl->lq_type)) { - if (index > IWL_LAST_OFDM_RATE) { + ucode_rate |= RATE_MCS_CCK_MSK; + return ucode_rate; + } + + if (is_ht(rate)) { + if (index < IWL_FIRST_HT_RATE || index > IWL_LAST_HT_RATE) { IWL_ERR(mvm, "Invalid HT rate index %d\n", index); - index = IWL_LAST_OFDM_RATE; + index = IWL_LAST_HT_RATE; } - rate_n_flags = RATE_MCS_HT_MSK; + ucode_rate |= RATE_MCS_HT_MSK; - if (is_siso(tbl->lq_type)) - rate_n_flags |= iwl_rates[index].plcp_siso; - else if (is_mimo2(tbl->lq_type)) - rate_n_flags |= iwl_rates[index].plcp_mimo2; + if (is_ht_siso(rate)) + ucode_rate |= iwl_rates[index].plcp_ht_siso; + else if (is_ht_mimo2(rate)) + ucode_rate |= iwl_rates[index].plcp_ht_mimo2; else - rate_n_flags |= iwl_rates[index].plcp_mimo3; + WARN_ON_ONCE(1); + } else if (is_vht(rate)) { + if (index < IWL_FIRST_VHT_RATE || index > IWL_LAST_VHT_RATE) { + IWL_ERR(mvm, "Invalid VHT rate index %d\n", index); + index = IWL_LAST_VHT_RATE; + } + ucode_rate |= RATE_MCS_VHT_MSK; + if (is_vht_siso(rate)) + ucode_rate |= iwl_rates[index].plcp_vht_siso; + else if (is_vht_mimo2(rate)) + ucode_rate |= iwl_rates[index].plcp_vht_mimo2; + else + WARN_ON_ONCE(1); + } else { - IWL_ERR(mvm, "Invalid tbl->lq_type %d\n", tbl->lq_type); + IWL_ERR(mvm, "Invalid rate->type %d\n", rate->type); } - rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) & - RATE_MCS_ANT_ABC_MSK); - - if (is_Ht(tbl->lq_type)) { - if (tbl->is_ht40) - rate_n_flags |= RATE_MCS_CHAN_WIDTH_40; - if (tbl->is_SGI) - rate_n_flags |= RATE_MCS_SGI_MSK; + ucode_rate |= rate->bw; + if (rate->sgi) + ucode_rate |= RATE_MCS_SGI_MSK; - if (use_green) { - rate_n_flags |= RATE_HT_MCS_GF_MSK; - if (is_siso(tbl->lq_type) && tbl->is_SGI) { - rate_n_flags &= ~RATE_MCS_SGI_MSK; - IWL_ERR(mvm, "GF was set with SGI:SISO\n"); - } - } - } - return rate_n_flags; + return ucode_rate; } -/* - * Interpret uCode API's rate_n_flags format, - * fill "search" or "active" tx mode table. - */ -static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags, - enum ieee80211_band band, - struct iwl_scale_tbl_info *tbl, - int *rate_idx) +/* Convert a ucode rate into an rs_rate object */ +static int rs_rate_from_ucode_rate(const u32 ucode_rate, + enum ieee80211_band band, + struct rs_rate *rate) { - u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK); - u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags); - u8 mcs; + u32 ant_msk = ucode_rate & RATE_MCS_ANT_ABC_MSK; + u8 num_of_ant = get_num_of_ant_from_rate(ucode_rate); + u8 nss; - memset(tbl, 0, sizeof(struct iwl_scale_tbl_info)); - *rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags); + memset(rate, 0, sizeof(*rate)); + rate->index = iwl_hwrate_to_plcp_idx(ucode_rate); - if (*rate_idx == IWL_RATE_INVALID) { - *rate_idx = -1; + if (rate->index == IWL_RATE_INVALID) return -EINVAL; - } - tbl->is_SGI = 0; /* default legacy setup */ - tbl->is_ht40 = 0; - tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS); - tbl->lq_type = LQ_NONE; - tbl->max_search = IWL_MAX_SEARCH; - /* legacy rate format */ - if (!(rate_n_flags & RATE_MCS_HT_MSK)) { + rate->ant = (ant_msk >> RATE_MCS_ANT_POS); + + /* Legacy */ + if (!(ucode_rate & RATE_MCS_HT_MSK) && + !(ucode_rate & RATE_MCS_VHT_MSK)) { if (num_of_ant == 1) { if (band == IEEE80211_BAND_5GHZ) - tbl->lq_type = LQ_A; + rate->type = LQ_LEGACY_A; else - tbl->lq_type = LQ_G; + rate->type = LQ_LEGACY_G; } - /* HT rate format */ - } else { - if (rate_n_flags & RATE_MCS_SGI_MSK) - tbl->is_SGI = 1; - - if (rate_n_flags & RATE_MCS_CHAN_WIDTH_40) /* TODO */ - tbl->is_ht40 = 1; - - mcs = rs_extract_rate(rate_n_flags); - - /* SISO */ - if (mcs <= IWL_RATE_SISO_60M_PLCP) { - if (num_of_ant == 1) - tbl->lq_type = LQ_SISO; /*else NONE*/ - /* MIMO2 */ - } else if (mcs <= IWL_RATE_MIMO2_60M_PLCP) { - if (num_of_ant == 2) - tbl->lq_type = LQ_MIMO2; - /* MIMO3 */ + + return 0; + } + + /* HT or VHT */ + if (ucode_rate & RATE_MCS_SGI_MSK) + rate->sgi = true; + + rate->bw = ucode_rate & RATE_MCS_CHAN_WIDTH_MSK; + + if (ucode_rate & RATE_MCS_HT_MSK) { + nss = ((ucode_rate & RATE_HT_MCS_NSS_MSK) >> + RATE_HT_MCS_NSS_POS) + 1; + + if (nss == 1) { + rate->type = LQ_HT_SISO; + WARN_ON_ONCE(num_of_ant != 1); + } else if (nss == 2) { + rate->type = LQ_HT_MIMO2; + WARN_ON_ONCE(num_of_ant != 2); } else { - if (num_of_ant == 3) { - tbl->max_search = IWL_MAX_11N_MIMO3_SEARCH; - tbl->lq_type = LQ_MIMO3; - } + WARN_ON_ONCE(1); + } + } else if (ucode_rate & RATE_MCS_VHT_MSK) { + nss = ((ucode_rate & RATE_VHT_MCS_NSS_MSK) >> + RATE_VHT_MCS_NSS_POS) + 1; + + if (nss == 1) { + rate->type = LQ_VHT_SISO; + WARN_ON_ONCE(num_of_ant != 1); + } else if (nss == 2) { + rate->type = LQ_VHT_MIMO2; + WARN_ON_ONCE(num_of_ant != 2); + } else { + WARN_ON_ONCE(1); } } + + WARN_ON_ONCE(rate->bw == RATE_MCS_CHAN_WIDTH_160); + WARN_ON_ONCE(rate->bw == RATE_MCS_CHAN_WIDTH_80 && + !is_vht(rate)); + return 0; } /* switch to another antenna/antennas and return 1 */ /* if no other valid antenna found, return 0 */ -static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags, - struct iwl_scale_tbl_info *tbl) +static int rs_toggle_antenna(u32 valid_ant, struct rs_rate *rate) { u8 new_ant_type; - if (!tbl->ant_type || tbl->ant_type > ANT_ABC) + if (!rate->ant || rate->ant > ANT_ABC) return 0; - if (!rs_is_valid_ant(valid_ant, tbl->ant_type)) + if (!rs_is_valid_ant(valid_ant, rate->ant)) return 0; - new_ant_type = ant_toggle_lookup[tbl->ant_type]; + new_ant_type = ant_toggle_lookup[rate->ant]; - while ((new_ant_type != tbl->ant_type) && + while ((new_ant_type != rate->ant) && !rs_is_valid_ant(valid_ant, new_ant_type)) new_ant_type = ant_toggle_lookup[new_ant_type]; - if (new_ant_type == tbl->ant_type) + if (new_ant_type == rate->ant) return 0; - tbl->ant_type = new_ant_type; - *rate_n_flags &= ~RATE_MCS_ANT_ABC_MSK; - *rate_n_flags |= new_ant_type << RATE_MCS_ANT_POS; - return 1; -} + rate->ant = new_ant_type; -/** - * Green-field mode is valid if the station supports it and - * there are no non-GF stations present in the BSS. - */ -static bool rs_use_green(struct ieee80211_sta *sta) -{ - /* - * There's a bug somewhere in this code that causes the - * scaling to get stuck because GF+SGI can't be combined - * in SISO rates. Until we find that bug, disable GF, it - * has only limited benefit and we still interoperate with - * GF APs since we can always receive GF transmissions. - */ - return false; + return 1; } -/** - * rs_get_supported_rates - get the available rates - * - * if management frame or broadcast frame only return - * basic available rates. - * - */ static u16 rs_get_supported_rates(struct iwl_lq_sta *lq_sta, - struct ieee80211_hdr *hdr, - enum iwl_table_type rate_type) + struct rs_rate *rate) { - if (is_legacy(rate_type)) { + if (is_legacy(rate)) return lq_sta->active_legacy_rate; - } else { - if (is_siso(rate_type)) - return lq_sta->active_siso_rate; - else if (is_mimo2(rate_type)) - return lq_sta->active_mimo2_rate; - else - return lq_sta->active_mimo3_rate; - } + else if (is_siso(rate)) + return lq_sta->active_siso_rate; + else if (is_mimo2(rate)) + return lq_sta->active_mimo2_rate; + + WARN_ON_ONCE(1); + return 0; } static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask, @@ -721,7 +864,7 @@ static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask, /* 802.11A or ht walks to the next literal adjacent rate in * the rate table */ - if (is_a_band(rate_type) || !is_legacy(rate_type)) { + if (is_type_a_band(rate_type) || !is_type_legacy(rate_type)) { int i; u32 mask; @@ -769,74 +912,92 @@ static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask, return (high << 8) | low; } -static u32 rs_get_lower_rate(struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl, - u8 scale_index, u8 ht_possible) +static inline bool rs_rate_supported(struct iwl_lq_sta *lq_sta, + struct rs_rate *rate) { - s32 low; - u16 rate_mask; + return BIT(rate->index) & rs_get_supported_rates(lq_sta, rate); +} + +/* Get the next supported lower rate in the current column. + * Return true if bottom rate in the current column was reached + */ +static bool rs_get_lower_rate_in_column(struct iwl_lq_sta *lq_sta, + struct rs_rate *rate) +{ + u8 low; u16 high_low; - u8 switch_to_legacy = 0; - u8 is_green = lq_sta->is_green; + u16 rate_mask; struct iwl_mvm *mvm = lq_sta->drv; - /* check if we need to switch from HT to legacy rates. - * assumption is that mandatory rates (1Mbps or 6Mbps) - * are always supported (spec demand) */ - if (!is_legacy(tbl->lq_type) && (!ht_possible || !scale_index)) { - switch_to_legacy = 1; - scale_index = rs_ht_to_legacy[scale_index]; - if (lq_sta->band == IEEE80211_BAND_5GHZ) - tbl->lq_type = LQ_A; - else - tbl->lq_type = LQ_G; + rate_mask = rs_get_supported_rates(lq_sta, rate); + high_low = rs_get_adjacent_rate(mvm, rate->index, rate_mask, + rate->type); + low = high_low & 0xff; - if (num_of_ant(tbl->ant_type) > 1) - tbl->ant_type = - first_antenna(iwl_fw_valid_tx_ant(mvm->fw)); + /* Bottom rate of column reached */ + if (low == IWL_RATE_INVALID) + return true; - tbl->is_ht40 = 0; - tbl->is_SGI = 0; - tbl->max_search = IWL_MAX_SEARCH; - } + rate->index = low; + return false; +} - rate_mask = rs_get_supported_rates(lq_sta, NULL, tbl->lq_type); +/* Get the next rate to use following a column downgrade */ +static void rs_get_lower_rate_down_column(struct iwl_lq_sta *lq_sta, + struct rs_rate *rate) +{ + struct iwl_mvm *mvm = lq_sta->drv; - /* Mask with station rate restriction */ - if (is_legacy(tbl->lq_type)) { - /* supp_rates has no CCK bits in A mode */ + if (is_legacy(rate)) { + /* No column to downgrade from Legacy */ + return; + } else if (is_siso(rate)) { + /* Downgrade to Legacy if we were in SISO */ if (lq_sta->band == IEEE80211_BAND_5GHZ) - rate_mask = (u16)(rate_mask & - (lq_sta->supp_rates << IWL_FIRST_OFDM_RATE)); + rate->type = LQ_LEGACY_A; else - rate_mask = (u16)(rate_mask & lq_sta->supp_rates); - } + rate->type = LQ_LEGACY_G; - /* If we switched from HT to legacy, check current rate */ - if (switch_to_legacy && (rate_mask & (1 << scale_index))) { - low = scale_index; - goto out; + rate->bw = RATE_MCS_CHAN_WIDTH_20; + + WARN_ON_ONCE(rate->index < IWL_RATE_MCS_0_INDEX || + rate->index > IWL_RATE_MCS_9_INDEX); + + rate->index = rs_ht_to_legacy[rate->index]; + } else { + /* Downgrade to SISO with same MCS if in MIMO */ + rate->type = is_vht_mimo2(rate) ? + LQ_VHT_SISO : LQ_HT_SISO; } - high_low = rs_get_adjacent_rate(lq_sta->drv, scale_index, rate_mask, - tbl->lq_type); - low = high_low & 0xff; - if (low == IWL_RATE_INVALID) - low = scale_index; + if (num_of_ant(rate->ant) > 1) + rate->ant = first_antenna(mvm->fw->valid_tx_ant); -out: - return rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green); + /* Relevant in both switching to SISO or Legacy */ + rate->sgi = false; + + if (!rs_rate_supported(lq_sta, rate)) + rs_get_lower_rate_in_column(lq_sta, rate); } -/* - * Simple function to compare two rate scale table types - */ -static bool table_type_matches(struct iwl_scale_tbl_info *a, - struct iwl_scale_tbl_info *b) +/* Simple function to compare two rate scale table types */ +static inline bool rs_rate_match(struct rs_rate *a, + struct rs_rate *b) +{ + return (a->type == b->type) && (a->ant == b->ant) && (a->sgi == b->sgi); +} + +static u32 rs_ch_width_from_mac_flags(enum mac80211_rate_control_flags flags) { - return (a->lq_type == b->lq_type) && (a->ant_type == b->ant_type) && - (a->is_SGI == b->is_SGI); + if (flags & IEEE80211_TX_RC_40_MHZ_WIDTH) + return RATE_MCS_CHAN_WIDTH_40; + else if (flags & IEEE80211_TX_RC_80_MHZ_WIDTH) + return RATE_MCS_CHAN_WIDTH_80; + else if (flags & IEEE80211_TX_RC_160_MHZ_WIDTH) + return RATE_MCS_CHAN_WIDTH_160; + + return RATE_MCS_CHAN_WIDTH_20; } /* @@ -848,7 +1009,7 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, { int legacy_success; int retries; - int rs_index, mac_index, i; + int mac_index, i; struct iwl_lq_sta *lq_sta = priv_sta; struct iwl_lq_cmd *table; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; @@ -856,12 +1017,10 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); enum mac80211_rate_control_flags mac_flags; - u32 tx_rate; - struct iwl_scale_tbl_info tbl_type; + u32 ucode_rate; + struct rs_rate rate; struct iwl_scale_tbl_info *curr_tbl, *other_tbl, *tmp_tbl; - - IWL_DEBUG_RATE_LIMIT(mvm, - "get frame ack response, update rate scale window\n"); + u8 reduced_txp = (uintptr_t)info->status.status_driver_data[0]; /* Treat uninitialized rate scaling data same as non-existing. */ if (!lq_sta) { @@ -872,6 +1031,13 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, return; } +#ifdef CONFIG_MAC80211_DEBUGFS + /* Disable last tx check if we are debugging with fixed rate */ + if (lq_sta->dbg_fixed_rate) { + IWL_DEBUG_RATE(mvm, "Fixed rate. avoid rate scaling\n"); + return; + } +#endif if (!ieee80211_is_data(hdr->frame_control) || info->flags & IEEE80211_TX_CTL_NO_ACK) return; @@ -890,10 +1056,10 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, * to a new "search" mode (which might become the new "active" mode). */ table = &lq_sta->lq; - tx_rate = le32_to_cpu(table->rs_table[0]); - rs_get_tbl_info_from_mcs(tx_rate, info->band, &tbl_type, &rs_index); + ucode_rate = le32_to_cpu(table->rs_table[0]); + rs_rate_from_ucode_rate(ucode_rate, info->band, &rate); if (info->band == IEEE80211_BAND_5GHZ) - rs_index -= IWL_FIRST_OFDM_RATE; + rate.index -= IWL_FIRST_OFDM_RATE; mac_flags = info->status.rates[0].flags; mac_index = info->status.rates[0].idx; /* For HT packets, map MCS to PLCP */ @@ -908,20 +1074,39 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, */ if (info->band == IEEE80211_BAND_2GHZ) mac_index += IWL_FIRST_OFDM_RATE; + } else if (mac_flags & IEEE80211_TX_RC_VHT_MCS) { + mac_index &= RATE_VHT_MCS_RATE_CODE_MSK; + if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE)) + mac_index++; + } + + if (time_after(jiffies, + (unsigned long)(lq_sta->last_tx + RS_IDLE_TIMEOUT))) { + int tid; + IWL_DEBUG_RATE(mvm, "Tx idle for too long. reinit rs\n"); + for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) + ieee80211_stop_tx_ba_session(sta, tid); + + iwl_mvm_rs_rate_init(mvm, sta, sband->band, false); + return; } + lq_sta->last_tx = jiffies; + /* Here we actually compare this rate to the latest LQ command */ if ((mac_index < 0) || - (tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) || - (tbl_type.is_ht40 != !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) || - (tbl_type.ant_type != info->status.antenna) || - (!!(tx_rate & RATE_MCS_HT_MSK) != - !!(mac_flags & IEEE80211_TX_RC_MCS)) || - (!!(tx_rate & RATE_HT_MCS_GF_MSK) != - !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) || - (rs_index != mac_index)) { + (rate.sgi != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) || + (rate.bw != rs_ch_width_from_mac_flags(mac_flags)) || + (rate.ant != info->status.antenna) || + (!!(ucode_rate & RATE_MCS_HT_MSK) != + !!(mac_flags & IEEE80211_TX_RC_MCS)) || + (!!(ucode_rate & RATE_MCS_VHT_MSK) != + !!(mac_flags & IEEE80211_TX_RC_VHT_MCS)) || + (!!(ucode_rate & RATE_HT_MCS_GF_MSK) != + !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) || + (rate.index != mac_index)) { IWL_DEBUG_RATE(mvm, "initial rate %d does not match %d (0x%x)\n", - mac_index, rs_index, tx_rate); + mac_index, rate.index, ucode_rate); /* * Since rates mis-match, the last LQ command may have failed. * After IWL_MISSED_RATE_MAX mis-matches, resync the uCode with @@ -930,7 +1115,10 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, lq_sta->missed_rate_counter++; if (lq_sta->missed_rate_counter > IWL_MISSED_RATE_MAX) { lq_sta->missed_rate_counter = 0; - iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_ASYNC, false); + IWL_DEBUG_RATE(mvm, + "Too many rates mismatch. Send sync LQ. rs_state %d\n", + lq_sta->rs_state); + iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, false); } /* Regardless, ignore this status info for outdated rate */ return; @@ -939,28 +1127,23 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, lq_sta->missed_rate_counter = 0; /* Figure out if rate scale algorithm is in active or search table */ - if (table_type_matches(&tbl_type, - &(lq_sta->lq_info[lq_sta->active_tbl]))) { + if (rs_rate_match(&rate, + &(lq_sta->lq_info[lq_sta->active_tbl].rate))) { curr_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); other_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); - } else if (table_type_matches( - &tbl_type, &lq_sta->lq_info[1 - lq_sta->active_tbl])) { + } else if (rs_rate_match(&rate, + &lq_sta->lq_info[1 - lq_sta->active_tbl].rate)) { curr_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); other_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); } else { IWL_DEBUG_RATE(mvm, "Neither active nor search matches tx rate\n"); tmp_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - IWL_DEBUG_RATE(mvm, "active- lq:%x, ant:%x, SGI:%d\n", - tmp_tbl->lq_type, tmp_tbl->ant_type, - tmp_tbl->is_SGI); + rs_dump_rate(mvm, &tmp_tbl->rate, "ACTIVE"); tmp_tbl = &(lq_sta->lq_info[1 - lq_sta->active_tbl]); - IWL_DEBUG_RATE(mvm, "search- lq:%x, ant:%x, SGI:%d\n", - tmp_tbl->lq_type, tmp_tbl->ant_type, - tmp_tbl->is_SGI); - IWL_DEBUG_RATE(mvm, "actual- lq:%x, ant:%x, SGI:%d\n", - tbl_type.lq_type, tbl_type.ant_type, - tbl_type.is_SGI); + rs_dump_rate(mvm, &tmp_tbl->rate, "SEARCH"); + rs_dump_rate(mvm, &rate, "ACTUAL"); + /* * no matching table found, let's by-pass the data collection * and continue to perform rate scale to find the rate table @@ -977,15 +1160,15 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, * first index into rate scale table. */ if (info->flags & IEEE80211_TX_STAT_AMPDU) { - tx_rate = le32_to_cpu(table->rs_table[0]); - rs_get_tbl_info_from_mcs(tx_rate, info->band, &tbl_type, - &rs_index); - rs_collect_tx_data(curr_tbl, rs_index, + ucode_rate = le32_to_cpu(table->rs_table[0]); + rs_rate_from_ucode_rate(ucode_rate, info->band, &rate); + rs_collect_tx_data(lq_sta, curr_tbl, rate.index, info->status.ampdu_len, - info->status.ampdu_ack_len); + info->status.ampdu_ack_len, + reduced_txp); /* Update success/fail counts if not searching for new mode */ - if (lq_sta->stay_in_tbl) { + if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) { lq_sta->total_success += info->status.ampdu_ack_len; lq_sta->total_failed += (info->status.ampdu_len - info->status.ampdu_ack_len); @@ -1002,31 +1185,33 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband, legacy_success = !!(info->flags & IEEE80211_TX_STAT_ACK); /* Collect data for each rate used during failed TX attempts */ for (i = 0; i <= retries; ++i) { - tx_rate = le32_to_cpu(table->rs_table[i]); - rs_get_tbl_info_from_mcs(tx_rate, info->band, - &tbl_type, &rs_index); + ucode_rate = le32_to_cpu(table->rs_table[i]); + rs_rate_from_ucode_rate(ucode_rate, info->band, &rate); /* * Only collect stats if retried rate is in the same RS * table as active/search. */ - if (table_type_matches(&tbl_type, curr_tbl)) + if (rs_rate_match(&rate, &curr_tbl->rate)) tmp_tbl = curr_tbl; - else if (table_type_matches(&tbl_type, other_tbl)) + else if (rs_rate_match(&rate, &other_tbl->rate)) tmp_tbl = other_tbl; else continue; - rs_collect_tx_data(tmp_tbl, rs_index, 1, - i < retries ? 0 : legacy_success); + + rs_collect_tx_data(lq_sta, tmp_tbl, rate.index, 1, + i < retries ? 0 : legacy_success, + reduced_txp); } /* Update success/fail counts if not searching for new mode */ - if (lq_sta->stay_in_tbl) { + if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) { lq_sta->total_success += legacy_success; lq_sta->total_failed += retries + (1 - legacy_success); } } /* The last TX rate is cached in lq_sta; it's set in if/else above */ - lq_sta->last_rate_n_flags = tx_rate; + lq_sta->last_rate_n_flags = ucode_rate; + IWL_DEBUG_RATE(mvm, "reduced txpower: %d\n", reduced_txp); done: /* See if there's a better rate or modulation mode to try. */ if (sta && sta->supp_rates[sband->band]) @@ -1044,8 +1229,8 @@ done: static void rs_set_stay_in_table(struct iwl_mvm *mvm, u8 is_legacy, struct iwl_lq_sta *lq_sta) { - IWL_DEBUG_RATE(mvm, "we are staying in the same table\n"); - lq_sta->stay_in_tbl = 1; /* only place this gets set */ + IWL_DEBUG_RATE(mvm, "Moving to RS_STATE_STAY_IN_COLUMN\n"); + lq_sta->rs_state = RS_STATE_STAY_IN_COLUMN; if (is_legacy) { lq_sta->table_count_limit = IWL_LEGACY_TABLE_COUNT; lq_sta->max_failure_limit = IWL_LEGACY_FAILURE_LIMIT; @@ -1059,957 +1244,695 @@ static void rs_set_stay_in_table(struct iwl_mvm *mvm, u8 is_legacy, lq_sta->total_failed = 0; lq_sta->total_success = 0; lq_sta->flush_timer = jiffies; - lq_sta->action_counter = 0; + lq_sta->visited_columns = 0; } -/* - * Find correct throughput table for given mode of modulation - */ -static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl) +static int rs_get_max_allowed_rate(struct iwl_lq_sta *lq_sta, + const struct rs_tx_column *column) +{ + switch (column->mode) { + case RS_LEGACY: + return lq_sta->max_legacy_rate_idx; + case RS_SISO: + return lq_sta->max_siso_rate_idx; + case RS_MIMO2: + return lq_sta->max_mimo2_rate_idx; + default: + WARN_ON_ONCE(1); + } + + return lq_sta->max_legacy_rate_idx; +} + +static const u16 *rs_get_expected_tpt_table(struct iwl_lq_sta *lq_sta, + const struct rs_tx_column *column, + u32 bw) { /* Used to choose among HT tables */ - s32 (*ht_tbl_pointer)[IWL_RATE_COUNT]; + const u16 (*ht_tbl_pointer)[IWL_RATE_COUNT]; - /* Check for invalid LQ type */ - if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) { - tbl->expected_tpt = expected_tpt_legacy; - return; - } + if (WARN_ON_ONCE(column->mode != RS_LEGACY && + column->mode != RS_SISO && + column->mode != RS_MIMO2)) + return expected_tpt_legacy; /* Legacy rates have only one table */ - if (is_legacy(tbl->lq_type)) { - tbl->expected_tpt = expected_tpt_legacy; - return; - } + if (column->mode == RS_LEGACY) + return expected_tpt_legacy; + ht_tbl_pointer = expected_tpt_mimo2_20MHz; /* Choose among many HT tables depending on number of streams - * (SISO/MIMO2/MIMO3), channel width (20/40), SGI, and aggregation + * (SISO/MIMO2), channel width (20/40/80), SGI, and aggregation * status */ - if (is_siso(tbl->lq_type) && !tbl->is_ht40) - ht_tbl_pointer = expected_tpt_siso20MHz; - else if (is_siso(tbl->lq_type)) - ht_tbl_pointer = expected_tpt_siso40MHz; - else if (is_mimo2(tbl->lq_type) && !tbl->is_ht40) - ht_tbl_pointer = expected_tpt_mimo2_20MHz; - else if (is_mimo2(tbl->lq_type)) - ht_tbl_pointer = expected_tpt_mimo2_40MHz; - else if (is_mimo3(tbl->lq_type) && !tbl->is_ht40) - ht_tbl_pointer = expected_tpt_mimo3_20MHz; - else /* if (is_mimo3(tbl->lq_type)) <-- must be true */ - ht_tbl_pointer = expected_tpt_mimo3_40MHz; - - if (!tbl->is_SGI && !lq_sta->is_agg) /* Normal */ - tbl->expected_tpt = ht_tbl_pointer[0]; - else if (tbl->is_SGI && !lq_sta->is_agg) /* SGI */ - tbl->expected_tpt = ht_tbl_pointer[1]; - else if (!tbl->is_SGI && lq_sta->is_agg) /* AGG */ - tbl->expected_tpt = ht_tbl_pointer[2]; + if (column->mode == RS_SISO) { + switch (bw) { + case RATE_MCS_CHAN_WIDTH_20: + ht_tbl_pointer = expected_tpt_siso_20MHz; + break; + case RATE_MCS_CHAN_WIDTH_40: + ht_tbl_pointer = expected_tpt_siso_40MHz; + break; + case RATE_MCS_CHAN_WIDTH_80: + ht_tbl_pointer = expected_tpt_siso_80MHz; + break; + default: + WARN_ON_ONCE(1); + } + } else if (column->mode == RS_MIMO2) { + switch (bw) { + case RATE_MCS_CHAN_WIDTH_20: + ht_tbl_pointer = expected_tpt_mimo2_20MHz; + break; + case RATE_MCS_CHAN_WIDTH_40: + ht_tbl_pointer = expected_tpt_mimo2_40MHz; + break; + case RATE_MCS_CHAN_WIDTH_80: + ht_tbl_pointer = expected_tpt_mimo2_80MHz; + break; + default: + WARN_ON_ONCE(1); + } + } else { + WARN_ON_ONCE(1); + } + + if (!column->sgi && !lq_sta->is_agg) /* Normal */ + return ht_tbl_pointer[0]; + else if (column->sgi && !lq_sta->is_agg) /* SGI */ + return ht_tbl_pointer[1]; + else if (!column->sgi && lq_sta->is_agg) /* AGG */ + return ht_tbl_pointer[2]; else /* AGG+SGI */ - tbl->expected_tpt = ht_tbl_pointer[3]; + return ht_tbl_pointer[3]; +} + +static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta, + struct iwl_scale_tbl_info *tbl) +{ + struct rs_rate *rate = &tbl->rate; + const struct rs_tx_column *column = &rs_tx_columns[tbl->column]; + + tbl->expected_tpt = rs_get_expected_tpt_table(lq_sta, column, rate->bw); } -/* - * Find starting rate for new "search" high-throughput mode of modulation. - * Goal is to find lowest expected rate (under perfect conditions) that is - * above the current measured throughput of "active" mode, to give new mode - * a fair chance to prove itself without too many challenges. - * - * This gets called when transitioning to more aggressive modulation - * (i.e. legacy to SISO or MIMO, or SISO to MIMO), as well as less aggressive - * (i.e. MIMO to SISO). When moving to MIMO, bit rate will typically need - * to decrease to match "active" throughput. When moving from MIMO to SISO, - * bit rate will typically need to increase, but not if performance was bad. - */ static s32 rs_get_best_rate(struct iwl_mvm *mvm, struct iwl_lq_sta *lq_sta, struct iwl_scale_tbl_info *tbl, /* "search" */ - u16 rate_mask, s8 index) + unsigned long rate_mask, s8 index) { - /* "active" values */ struct iwl_scale_tbl_info *active_tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - s32 active_sr = active_tbl->win[index].success_ratio; - s32 active_tpt = active_tbl->expected_tpt[index]; - - /* expected "search" throughput */ - s32 *tpt_tbl = tbl->expected_tpt; - - s32 new_rate, high, low, start_hi; + s32 success_ratio = active_tbl->win[index].success_ratio; + u16 expected_current_tpt = active_tbl->expected_tpt[index]; + const u16 *tpt_tbl = tbl->expected_tpt; u16 high_low; - s8 rate = index; - - new_rate = high = low = start_hi = IWL_RATE_INVALID; - - while (1) { - high_low = rs_get_adjacent_rate(mvm, rate, rate_mask, - tbl->lq_type); - - low = high_low & 0xff; - high = (high_low >> 8) & 0xff; - - /* - * Lower the "search" bit rate, to give new "search" mode - * approximately the same throughput as "active" if: - * - * 1) "Active" mode has been working modestly well (but not - * great), and expected "search" throughput (under perfect - * conditions) at candidate rate is above the actual - * measured "active" throughput (but less than expected - * "active" throughput under perfect conditions). - * OR - * 2) "Active" mode has been working perfectly or very well - * and expected "search" throughput (under perfect - * conditions) at candidate rate is above expected - * "active" throughput (under perfect conditions). - */ - if ((((100 * tpt_tbl[rate]) > lq_sta->last_tpt) && - ((active_sr > IWL_RATE_DECREASE_TH) && - (active_sr <= IWL_RATE_HIGH_TH) && - (tpt_tbl[rate] <= active_tpt))) || - ((active_sr >= IWL_RATE_SCALE_SWITCH) && - (tpt_tbl[rate] > active_tpt))) { - /* (2nd or later pass) - * If we've already tried to raise the rate, and are - * now trying to lower it, use the higher rate. */ - if (start_hi != IWL_RATE_INVALID) { - new_rate = start_hi; - break; - } - - new_rate = rate; + u32 target_tpt; + int rate_idx; - /* Loop again with lower rate */ - if (low != IWL_RATE_INVALID) - rate = low; + if (success_ratio > RS_SR_NO_DECREASE) { + target_tpt = 100 * expected_current_tpt; + IWL_DEBUG_RATE(mvm, + "SR %d high. Find rate exceeding EXPECTED_CURRENT %d\n", + success_ratio, target_tpt); + } else { + target_tpt = lq_sta->last_tpt; + IWL_DEBUG_RATE(mvm, + "SR %d not thag good. Find rate exceeding ACTUAL_TPT %d\n", + success_ratio, target_tpt); + } - /* Lower rate not available, use the original */ - else - break; + rate_idx = find_first_bit(&rate_mask, BITS_PER_LONG); - /* Else try to raise the "search" rate to match "active" */ - } else { - /* (2nd or later pass) - * If we've already tried to lower the rate, and are - * now trying to raise it, use the lower rate. */ - if (new_rate != IWL_RATE_INVALID) - break; + while (rate_idx != IWL_RATE_INVALID) { + if (target_tpt < (100 * tpt_tbl[rate_idx])) + break; - /* Loop again with higher rate */ - else if (high != IWL_RATE_INVALID) { - start_hi = high; - rate = high; + high_low = rs_get_adjacent_rate(mvm, rate_idx, rate_mask, + tbl->rate.type); - /* Higher rate not available, use the original */ - } else { - new_rate = rate; - break; - } - } + rate_idx = (high_low >> 8) & 0xff; } - return new_rate; -} + IWL_DEBUG_RATE(mvm, "Best rate found %d target_tp %d expected_new %d\n", + rate_idx, target_tpt, + rate_idx != IWL_RATE_INVALID ? + 100 * tpt_tbl[rate_idx] : IWL_INVALID_VALUE); -static bool iwl_is_ht40_tx_allowed(struct ieee80211_sta *sta) -{ - return sta->bandwidth >= IEEE80211_STA_RX_BW_40; + return rate_idx; } -/* - * Set up search table for MIMO2 - */ -static int rs_switch_to_mimo2(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl, int index) +static u32 rs_bw_from_sta_bw(struct ieee80211_sta *sta) { - u16 rate_mask; - s32 rate; - s8 is_green = lq_sta->is_green; - - if (!sta->ht_cap.ht_supported) - return -1; - - if (sta->smps_mode == IEEE80211_SMPS_STATIC) - return -1; - - /* Need both Tx chains/antennas to support MIMO */ - if (num_of_ant(iwl_fw_valid_tx_ant(mvm->fw)) < 2) - return -1; - - IWL_DEBUG_RATE(mvm, "LQ: try to switch to MIMO2\n"); - - tbl->lq_type = LQ_MIMO2; - tbl->action = 0; - tbl->max_search = IWL_MAX_SEARCH; - rate_mask = lq_sta->active_mimo2_rate; - - if (iwl_is_ht40_tx_allowed(sta)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; - - rs_set_expected_tpt_table(lq_sta, tbl); - - rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index); - - IWL_DEBUG_RATE(mvm, "LQ: MIMO2 best rate %d mask %X\n", - rate, rate_mask); - if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) { - IWL_DEBUG_RATE(mvm, "Can't switch with index %d rate mask %x\n", - rate, rate_mask); - return -1; - } - tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate, is_green); + if (sta->bandwidth >= IEEE80211_STA_RX_BW_80) + return RATE_MCS_CHAN_WIDTH_80; + else if (sta->bandwidth >= IEEE80211_STA_RX_BW_40) + return RATE_MCS_CHAN_WIDTH_40; - IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index is green %X\n", - tbl->current_rate, is_green); - return 0; + return RATE_MCS_CHAN_WIDTH_20; } /* - * Set up search table for MIMO3 + * Check whether we should continue using same modulation mode, or + * begin search for a new mode, based on: + * 1) # tx successes or failures while using this mode + * 2) # times calling this function + * 3) elapsed time in this mode (not used, for now) */ -static int rs_switch_to_mimo3(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl, int index) +static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search) { - u16 rate_mask; - s32 rate; - s8 is_green = lq_sta->is_green; - - if (!sta->ht_cap.ht_supported) - return -1; - - if (sta->smps_mode == IEEE80211_SMPS_STATIC) - return -1; + struct iwl_scale_tbl_info *tbl; + int active_tbl; + int flush_interval_passed = 0; + struct iwl_mvm *mvm; - /* Need both Tx chains/antennas to support MIMO */ - if (num_of_ant(iwl_fw_valid_tx_ant(mvm->fw)) < 3) - return -1; + mvm = lq_sta->drv; + active_tbl = lq_sta->active_tbl; - IWL_DEBUG_RATE(mvm, "LQ: try to switch to MIMO3\n"); + tbl = &(lq_sta->lq_info[active_tbl]); - tbl->lq_type = LQ_MIMO3; - tbl->action = 0; - tbl->max_search = IWL_MAX_11N_MIMO3_SEARCH; - rate_mask = lq_sta->active_mimo3_rate; + /* If we've been disallowing search, see if we should now allow it */ + if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) { + /* Elapsed time using current modulation mode */ + if (lq_sta->flush_timer) + flush_interval_passed = + time_after(jiffies, + (unsigned long)(lq_sta->flush_timer + + RS_STAY_IN_COLUMN_TIMEOUT)); - if (iwl_is_ht40_tx_allowed(sta)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; + /* + * Check if we should allow search for new modulation mode. + * If many frames have failed or succeeded, or we've used + * this same modulation for a long time, allow search, and + * reset history stats that keep track of whether we should + * allow a new search. Also (below) reset all bitmaps and + * stats in active history. + */ + if (force_search || + (lq_sta->total_failed > lq_sta->max_failure_limit) || + (lq_sta->total_success > lq_sta->max_success_limit) || + ((!lq_sta->search_better_tbl) && + (lq_sta->flush_timer) && (flush_interval_passed))) { + IWL_DEBUG_RATE(mvm, + "LQ: stay is expired %d %d %d\n", + lq_sta->total_failed, + lq_sta->total_success, + flush_interval_passed); - rs_set_expected_tpt_table(lq_sta, tbl); + /* Allow search for new mode */ + lq_sta->rs_state = RS_STATE_SEARCH_CYCLE_STARTED; + IWL_DEBUG_RATE(mvm, + "Moving to RS_STATE_SEARCH_CYCLE_STARTED\n"); + lq_sta->total_failed = 0; + lq_sta->total_success = 0; + lq_sta->flush_timer = 0; + /* mark the current column as visited */ + lq_sta->visited_columns = BIT(tbl->column); + /* + * Else if we've used this modulation mode enough repetitions + * (regardless of elapsed time or success/failure), reset + * history bitmaps and rate-specific stats for all rates in + * active table. + */ + } else { + lq_sta->table_count++; + if (lq_sta->table_count >= + lq_sta->table_count_limit) { + lq_sta->table_count = 0; - rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index); + IWL_DEBUG_RATE(mvm, + "LQ: stay in table clear win\n"); + rs_rate_scale_clear_tbl_windows(mvm, tbl); + } + } - IWL_DEBUG_RATE(mvm, "LQ: MIMO3 best rate %d mask %X\n", - rate, rate_mask); - if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) { - IWL_DEBUG_RATE(mvm, "Can't switch with index %d rate mask %x\n", - rate, rate_mask); - return -1; + /* If transitioning to allow "search", reset all history + * bitmaps and stats in active table (this will become the new + * "search" table). */ + if (lq_sta->rs_state == RS_STATE_SEARCH_CYCLE_STARTED) { + rs_rate_scale_clear_tbl_windows(mvm, tbl); + } } - tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate, is_green); - - IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index is green %X\n", - tbl->current_rate, is_green); - return 0; } /* - * Set up search table for SISO + * setup rate table in uCode */ -static int rs_switch_to_siso(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl, int index) +static void rs_update_rate_tbl(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + struct iwl_lq_sta *lq_sta, + struct rs_rate *rate) { - u16 rate_mask; - u8 is_green = lq_sta->is_green; - s32 rate; - - if (!sta->ht_cap.ht_supported) - return -1; - - IWL_DEBUG_RATE(mvm, "LQ: try to switch to SISO\n"); - - tbl->lq_type = LQ_SISO; - tbl->action = 0; - tbl->max_search = IWL_MAX_SEARCH; - rate_mask = lq_sta->active_siso_rate; + rs_fill_lq_cmd(mvm, sta, lq_sta, rate); + iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, false); +} - if (iwl_is_ht40_tx_allowed(sta)) - tbl->is_ht40 = 1; - else - tbl->is_ht40 = 0; +static u8 rs_get_tid(struct iwl_lq_sta *lq_data, + struct ieee80211_hdr *hdr) +{ + u8 tid = IWL_MAX_TID_COUNT; - if (is_green) - tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/ + if (ieee80211_is_data_qos(hdr->frame_control)) { + u8 *qc = ieee80211_get_qos_ctl(hdr); + tid = qc[0] & 0xf; + } - rs_set_expected_tpt_table(lq_sta, tbl); - rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index); + if (unlikely(tid > IWL_MAX_TID_COUNT)) + tid = IWL_MAX_TID_COUNT; - IWL_DEBUG_RATE(mvm, "LQ: get best rate %d mask %X\n", rate, rate_mask); - if ((rate == IWL_RATE_INVALID) || !((1 << rate) & rate_mask)) { - IWL_DEBUG_RATE(mvm, - "can not switch with index %d rate mask %x\n", - rate, rate_mask); - return -1; - } - tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate, is_green); - IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index is green %X\n", - tbl->current_rate, is_green); - return 0; + return tid; } -/* - * Try to switch to new modulation mode from legacy - */ -static int rs_move_legacy_other(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, - int index) +static enum rs_column rs_get_next_column(struct iwl_mvm *mvm, + struct iwl_lq_sta *lq_sta, + struct ieee80211_sta *sta, + struct iwl_scale_tbl_info *tbl) { - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - struct iwl_scale_tbl_info *search_tbl = - &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); - u8 tx_chains_num = num_of_ant(valid_tx_ant); - int ret; - u8 update_search_tbl_counter = 0; - - start_action = tbl->action; - while (1) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_LEGACY_SWITCH_ANTENNA1: - case IWL_LEGACY_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(mvm, "LQ: Legacy toggle Antenna\n"); - - if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 && - tx_chains_num <= 1) || - (tbl->action == IWL_LEGACY_SWITCH_ANTENNA2 && - tx_chains_num <= 2)) - break; - - /* Don't change antenna if success has been great */ - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; + int i, j, max_rate; + enum rs_column next_col_id; + const struct rs_tx_column *curr_col = &rs_tx_columns[tbl->column]; + const struct rs_tx_column *next_col; + allow_column_func_t allow_func; + u8 valid_ants = mvm->fw->valid_tx_ant; + const u16 *expected_tpt_tbl; + u16 tpt, max_expected_tpt; + + for (i = 0; i < MAX_NEXT_COLUMNS; i++) { + next_col_id = curr_col->next_columns[i]; + + if (next_col_id == RS_COLUMN_INVALID) + continue; + + if (lq_sta->visited_columns & BIT(next_col_id)) { + IWL_DEBUG_RATE(mvm, "Skip already visited column %d\n", + next_col_id); + continue; + } - /* Set up search table to try other antenna */ - memcpy(search_tbl, tbl, sz); + next_col = &rs_tx_columns[next_col_id]; - if (rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, - search_tbl)) { - update_search_tbl_counter = 1; - rs_set_expected_tpt_table(lq_sta, search_tbl); - goto out; - } - break; - case IWL_LEGACY_SWITCH_SISO: - IWL_DEBUG_RATE(mvm, "LQ: Legacy switch to SISO\n"); - - /* Set up search table to try SISO */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - ret = rs_switch_to_siso(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) { - lq_sta->action_counter = 0; - goto out; - } - - break; - case IWL_LEGACY_SWITCH_MIMO2_AB: - case IWL_LEGACY_SWITCH_MIMO2_AC: - case IWL_LEGACY_SWITCH_MIMO2_BC: - IWL_DEBUG_RATE(mvm, "LQ: Legacy switch to MIMO2\n"); - - /* Set up search table to try MIMO */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - - if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AB) - search_tbl->ant_type = ANT_AB; - else if (tbl->action == IWL_LEGACY_SWITCH_MIMO2_AC) - search_tbl->ant_type = ANT_AC; - else - search_tbl->ant_type = ANT_BC; + if (!rs_is_valid_ant(valid_ants, next_col->ant)) { + IWL_DEBUG_RATE(mvm, + "Skip column %d as ANT config isn't supported by chip. valid_ants 0x%x column ant 0x%x\n", + next_col_id, valid_ants, next_col->ant); + continue; + } - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) + for (j = 0; j < MAX_COLUMN_CHECKS; j++) { + allow_func = next_col->checks[j]; + if (allow_func && !allow_func(mvm, sta, tbl)) break; + } - ret = rs_switch_to_mimo2(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) { - lq_sta->action_counter = 0; - goto out; - } - break; - - case IWL_LEGACY_SWITCH_MIMO3_ABC: - IWL_DEBUG_RATE(mvm, "LQ: Legacy switch to MIMO3\n"); + if (j != MAX_COLUMN_CHECKS) { + IWL_DEBUG_RATE(mvm, + "Skip column %d: not allowed (check %d failed)\n", + next_col_id, j); - /* Set up search table to try MIMO3 */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; + continue; + } - search_tbl->ant_type = ANT_ABC; + tpt = lq_sta->last_tpt / 100; + expected_tpt_tbl = rs_get_expected_tpt_table(lq_sta, next_col, + rs_bw_from_sta_bw(sta)); + if (WARN_ON_ONCE(!expected_tpt_tbl)) + continue; - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; + max_rate = rs_get_max_allowed_rate(lq_sta, next_col); + if (WARN_ON_ONCE(max_rate == IWL_RATE_INVALID)) + continue; - ret = rs_switch_to_mimo3(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) { - lq_sta->action_counter = 0; - goto out; - } - break; + max_expected_tpt = expected_tpt_tbl[max_rate]; + if (tpt >= max_expected_tpt) { + IWL_DEBUG_RATE(mvm, + "Skip column %d: can't beat current TPT. Max expected %d current %d\n", + next_col_id, max_expected_tpt, tpt); + continue; } - tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC) - tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; - if (tbl->action == start_action) - break; + IWL_DEBUG_RATE(mvm, + "Found potential column %d. Max expected %d current %d\n", + next_col_id, max_expected_tpt, tpt); + break; } - search_tbl->lq_type = LQ_NONE; - return 0; -out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC) - tbl->action = IWL_LEGACY_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; - return 0; + if (i == MAX_NEXT_COLUMNS) + return RS_COLUMN_INVALID; + + return next_col_id; } -/* - * Try to switch to new modulation mode from SISO - */ -static int rs_move_siso_to_other(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, int index) +static int rs_switch_to_column(struct iwl_mvm *mvm, + struct iwl_lq_sta *lq_sta, + struct ieee80211_sta *sta, + enum rs_column col_id) { - u8 is_green = lq_sta->is_green; struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); struct iwl_scale_tbl_info *search_tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + struct rs_rate *rate = &search_tbl->rate; + const struct rs_tx_column *column = &rs_tx_columns[col_id]; + const struct rs_tx_column *curr_column = &rs_tx_columns[tbl->column]; u32 sz = (sizeof(struct iwl_scale_tbl_info) - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); - u8 tx_chains_num = num_of_ant(valid_tx_ant); - u8 update_search_tbl_counter = 0; - int ret; + unsigned long rate_mask = 0; + u32 rate_idx = 0; - start_action = tbl->action; - while (1) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_SISO_SWITCH_ANTENNA1: - case IWL_SISO_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(mvm, "LQ: SISO toggle Antenna\n"); - if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 && - tx_chains_num <= 1) || - (tbl->action == IWL_SISO_SWITCH_ANTENNA2 && - tx_chains_num <= 2)) - break; + memcpy(search_tbl, tbl, sz); - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; + rate->sgi = column->sgi; + rate->ant = column->ant; - memcpy(search_tbl, tbl, sz); - if (rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, - search_tbl)) { - update_search_tbl_counter = 1; - goto out; - } - break; - case IWL_SISO_SWITCH_MIMO2_AB: - case IWL_SISO_SWITCH_MIMO2_AC: - case IWL_SISO_SWITCH_MIMO2_BC: - IWL_DEBUG_RATE(mvm, "LQ: SISO switch to MIMO2\n"); - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - - if (tbl->action == IWL_SISO_SWITCH_MIMO2_AB) - search_tbl->ant_type = ANT_AB; - else if (tbl->action == IWL_SISO_SWITCH_MIMO2_AC) - search_tbl->ant_type = ANT_AC; - else - search_tbl->ant_type = ANT_BC; + if (column->mode == RS_LEGACY) { + if (lq_sta->band == IEEE80211_BAND_5GHZ) + rate->type = LQ_LEGACY_A; + else + rate->type = LQ_LEGACY_G; + + rate_mask = lq_sta->active_legacy_rate; + } else if (column->mode == RS_SISO) { + rate->type = lq_sta->is_vht ? LQ_VHT_SISO : LQ_HT_SISO; + rate_mask = lq_sta->active_siso_rate; + } else if (column->mode == RS_MIMO2) { + rate->type = lq_sta->is_vht ? LQ_VHT_MIMO2 : LQ_HT_MIMO2; + rate_mask = lq_sta->active_mimo2_rate; + } else { + WARN_ON_ONCE("Bad column mode"); + } - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; + rate->bw = rs_bw_from_sta_bw(sta); + search_tbl->column = col_id; + rs_set_expected_tpt_table(lq_sta, search_tbl); - ret = rs_switch_to_mimo2(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) - goto out; - break; - case IWL_SISO_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) - break; + lq_sta->visited_columns |= BIT(col_id); - IWL_DEBUG_RATE(mvm, "LQ: SISO toggle SGI/NGI\n"); + /* Get the best matching rate if we're changing modes. e.g. + * SISO->MIMO, LEGACY->SISO, MIMO->SISO + */ + if (curr_column->mode != column->mode) { + rate_idx = rs_get_best_rate(mvm, lq_sta, search_tbl, + rate_mask, rate->index); - memcpy(search_tbl, tbl, sz); - if (is_green) { - if (!tbl->is_SGI) - break; - else - IWL_ERR(mvm, - "SGI was set in GF+SISO\n"); - } - search_tbl->is_SGI = !tbl->is_SGI; - rs_set_expected_tpt_table(lq_sta, search_tbl); - if (tbl->is_SGI) { - s32 tpt = lq_sta->last_tpt / 100; - if (tpt >= search_tbl->expected_tpt[index]) - break; - } - search_tbl->current_rate = - rate_n_flags_from_tbl(mvm, search_tbl, - index, is_green); - update_search_tbl_counter = 1; - goto out; - case IWL_SISO_SWITCH_MIMO3_ABC: - IWL_DEBUG_RATE(mvm, "LQ: SISO switch to MIMO3\n"); - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - search_tbl->ant_type = ANT_ABC; - - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; + if ((rate_idx == IWL_RATE_INVALID) || + !(BIT(rate_idx) & rate_mask)) { + IWL_DEBUG_RATE(mvm, + "can not switch with index %d" + " rate mask %lx\n", + rate_idx, rate_mask); - ret = rs_switch_to_mimo3(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) - goto out; - break; + goto err; } - tbl->action++; - if (tbl->action > IWL_LEGACY_SWITCH_MIMO3_ABC) - tbl->action = IWL_SISO_SWITCH_ANTENNA1; - if (tbl->action == start_action) - break; + rate->index = rate_idx; } - search_tbl->lq_type = LQ_NONE; - return 0; - out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_SISO_SWITCH_MIMO3_ABC) - tbl->action = IWL_SISO_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; + IWL_DEBUG_RATE(mvm, "Switched to column %d: Index %d\n", + col_id, rate->index); return 0; + +err: + rate->type = LQ_NONE; + return -1; } -/* - * Try to switch to new modulation mode from MIMO2 - */ -static int rs_move_mimo2_to_other(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, int index) +static enum rs_action rs_get_rate_action(struct iwl_mvm *mvm, + struct iwl_scale_tbl_info *tbl, + s32 sr, int low, int high, + int current_tpt, + int low_tpt, int high_tpt) { - s8 is_green = lq_sta->is_green; - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - struct iwl_scale_tbl_info *search_tbl = - &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); - u8 tx_chains_num = num_of_ant(valid_tx_ant); - u8 update_search_tbl_counter = 0; - int ret; - - start_action = tbl->action; - while (1) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_MIMO2_SWITCH_ANTENNA1: - case IWL_MIMO2_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(mvm, "LQ: MIMO2 toggle Antennas\n"); - - if (tx_chains_num <= 2) - break; - - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; + enum rs_action action = RS_ACTION_STAY; - memcpy(search_tbl, tbl, sz); - if (rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, - search_tbl)) { - update_search_tbl_counter = 1; - goto out; - } - break; - case IWL_MIMO2_SWITCH_SISO_A: - case IWL_MIMO2_SWITCH_SISO_B: - case IWL_MIMO2_SWITCH_SISO_C: - IWL_DEBUG_RATE(mvm, "LQ: MIMO2 switch to SISO\n"); - - /* Set up new search table for SISO */ - memcpy(search_tbl, tbl, sz); - - if (tbl->action == IWL_MIMO2_SWITCH_SISO_A) - search_tbl->ant_type = ANT_A; - else if (tbl->action == IWL_MIMO2_SWITCH_SISO_B) - search_tbl->ant_type = ANT_B; - else - search_tbl->ant_type = ANT_C; + if ((sr <= RS_SR_FORCE_DECREASE) || (current_tpt == 0)) { + IWL_DEBUG_RATE(mvm, + "Decrease rate because of low SR\n"); + return RS_ACTION_DOWNSCALE; + } - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; + if ((low_tpt == IWL_INVALID_VALUE) && + (high_tpt == IWL_INVALID_VALUE) && + (high != IWL_RATE_INVALID)) { + IWL_DEBUG_RATE(mvm, + "No data about high/low rates. Increase rate\n"); + return RS_ACTION_UPSCALE; + } - ret = rs_switch_to_siso(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) - goto out; + if ((high_tpt == IWL_INVALID_VALUE) && + (high != IWL_RATE_INVALID) && + (low_tpt != IWL_INVALID_VALUE) && + (low_tpt < current_tpt)) { + IWL_DEBUG_RATE(mvm, + "No data about high rate and low rate is worse. Increase rate\n"); + return RS_ACTION_UPSCALE; + } - break; + if ((high_tpt != IWL_INVALID_VALUE) && + (high_tpt > current_tpt)) { + IWL_DEBUG_RATE(mvm, + "Higher rate is better. Increate rate\n"); + return RS_ACTION_UPSCALE; + } - case IWL_MIMO2_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) - break; + if ((low_tpt != IWL_INVALID_VALUE) && + (high_tpt != IWL_INVALID_VALUE) && + (low_tpt < current_tpt) && + (high_tpt < current_tpt)) { + IWL_DEBUG_RATE(mvm, + "Both high and low are worse. Maintain rate\n"); + return RS_ACTION_STAY; + } - IWL_DEBUG_RATE(mvm, "LQ: MIMO2 toggle SGI/NGI\n"); + if ((low_tpt != IWL_INVALID_VALUE) && + (low_tpt > current_tpt)) { + IWL_DEBUG_RATE(mvm, + "Lower rate is better\n"); + action = RS_ACTION_DOWNSCALE; + goto out; + } - /* Set up new search table for MIMO2 */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = !tbl->is_SGI; - rs_set_expected_tpt_table(lq_sta, search_tbl); - /* - * If active table already uses the fastest possible - * modulation (dual stream with short guard interval), - * and it's working well, there's no need to look - * for a better type of modulation! - */ - if (tbl->is_SGI) { - s32 tpt = lq_sta->last_tpt / 100; - if (tpt >= search_tbl->expected_tpt[index]) - break; - } - search_tbl->current_rate = - rate_n_flags_from_tbl(mvm, search_tbl, - index, is_green); - update_search_tbl_counter = 1; - goto out; - - case IWL_MIMO2_SWITCH_MIMO3_ABC: - IWL_DEBUG_RATE(mvm, "LQ: MIMO2 switch to MIMO3\n"); - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - search_tbl->ant_type = ANT_ABC; - - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; + if ((low_tpt == IWL_INVALID_VALUE) && + (low != IWL_RATE_INVALID)) { + IWL_DEBUG_RATE(mvm, + "No data about lower rate\n"); + action = RS_ACTION_DOWNSCALE; + goto out; + } - ret = rs_switch_to_mimo3(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) - goto out; + IWL_DEBUG_RATE(mvm, "Maintain rate\n"); - break; +out: + if ((action == RS_ACTION_DOWNSCALE) && (low != IWL_RATE_INVALID)) { + if (sr >= RS_SR_NO_DECREASE) { + IWL_DEBUG_RATE(mvm, + "SR is above NO DECREASE. Avoid downscale\n"); + action = RS_ACTION_STAY; + } else if (current_tpt > (100 * tbl->expected_tpt[low])) { + IWL_DEBUG_RATE(mvm, + "Current TPT is higher than max expected in low rate. Avoid downscale\n"); + action = RS_ACTION_STAY; + } else { + IWL_DEBUG_RATE(mvm, "Decrease rate\n"); } - tbl->action++; - if (tbl->action > IWL_MIMO2_SWITCH_MIMO3_ABC) - tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; - - if (tbl->action == start_action) - break; } - search_tbl->lq_type = LQ_NONE; - return 0; - out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_MIMO2_SWITCH_MIMO3_ABC) - tbl->action = IWL_MIMO2_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; - return 0; + return action; } -/* - * Try to switch to new modulation mode from MIMO3 - */ -static int rs_move_mimo3_to_other(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct ieee80211_sta *sta, int index) +static void rs_get_adjacent_txp(struct iwl_mvm *mvm, int index, + int *weaker, int *stronger) { - s8 is_green = lq_sta->is_green; - struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - struct iwl_scale_tbl_info *search_tbl = - &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - struct iwl_rate_scale_data *window = &(tbl->win[index]); - struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; - u32 sz = (sizeof(struct iwl_scale_tbl_info) - - (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT)); - u8 start_action; - u8 valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); - u8 tx_chains_num = num_of_ant(valid_tx_ant); - int ret; - u8 update_search_tbl_counter = 0; - - start_action = tbl->action; - while (1) { - lq_sta->action_counter++; - switch (tbl->action) { - case IWL_MIMO3_SWITCH_ANTENNA1: - case IWL_MIMO3_SWITCH_ANTENNA2: - IWL_DEBUG_RATE(mvm, "LQ: MIMO3 toggle Antennas\n"); + *weaker = index + TPC_TX_POWER_STEP; + if (*weaker > TPC_MAX_REDUCTION) + *weaker = TPC_INVALID; - if (tx_chains_num <= 3) - break; - - if (window->success_ratio >= IWL_RS_GOOD_RATIO) - break; - - memcpy(search_tbl, tbl, sz); - if (rs_toggle_antenna(valid_tx_ant, - &search_tbl->current_rate, - search_tbl)) - goto out; - break; - case IWL_MIMO3_SWITCH_SISO_A: - case IWL_MIMO3_SWITCH_SISO_B: - case IWL_MIMO3_SWITCH_SISO_C: - IWL_DEBUG_RATE(mvm, "LQ: MIMO3 switch to SISO\n"); - - /* Set up new search table for SISO */ - memcpy(search_tbl, tbl, sz); - - if (tbl->action == IWL_MIMO3_SWITCH_SISO_A) - search_tbl->ant_type = ANT_A; - else if (tbl->action == IWL_MIMO3_SWITCH_SISO_B) - search_tbl->ant_type = ANT_B; - else - search_tbl->ant_type = ANT_C; - - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; - - ret = rs_switch_to_siso(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) - goto out; + *stronger = index - TPC_TX_POWER_STEP; + if (*stronger < 0) + *stronger = TPC_INVALID; +} - break; +static bool rs_tpc_allowed(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + struct rs_rate *rate, enum ieee80211_band band) +{ + int index = rate->index; + bool cam = (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM); + bool sta_ps_disabled = (vif->type == NL80211_IFTYPE_STATION && + !vif->bss_conf.ps); - case IWL_MIMO3_SWITCH_MIMO2_AB: - case IWL_MIMO3_SWITCH_MIMO2_AC: - case IWL_MIMO3_SWITCH_MIMO2_BC: - IWL_DEBUG_RATE(mvm, "LQ: MIMO3 switch to MIMO2\n"); - - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = 0; - if (tbl->action == IWL_MIMO3_SWITCH_MIMO2_AB) - search_tbl->ant_type = ANT_AB; - else if (tbl->action == IWL_MIMO3_SWITCH_MIMO2_AC) - search_tbl->ant_type = ANT_AC; - else - search_tbl->ant_type = ANT_BC; + IWL_DEBUG_RATE(mvm, "cam: %d sta_ps_disabled %d\n", + cam, sta_ps_disabled); + /* + * allow tpc only if power management is enabled, or bt coex + * activity grade allows it and we are on 2.4Ghz. + */ + if ((cam || sta_ps_disabled) && + !iwl_mvm_bt_coex_is_tpc_allowed(mvm, band)) + return false; + + IWL_DEBUG_RATE(mvm, "check rate, table type: %d\n", rate->type); + if (is_legacy(rate)) + return index == IWL_RATE_54M_INDEX; + if (is_ht(rate)) + return index == IWL_RATE_MCS_7_INDEX; + if (is_vht(rate)) + return index == IWL_RATE_MCS_7_INDEX || + index == IWL_RATE_MCS_8_INDEX || + index == IWL_RATE_MCS_9_INDEX; + + WARN_ON_ONCE(1); + return false; +} - if (!rs_is_valid_ant(valid_tx_ant, - search_tbl->ant_type)) - break; +enum tpc_action { + TPC_ACTION_STAY, + TPC_ACTION_DECREASE, + TPC_ACTION_INCREASE, + TPC_ACTION_NO_RESTIRCTION, +}; - ret = rs_switch_to_mimo2(mvm, lq_sta, sta, - search_tbl, index); - if (!ret) - goto out; +static enum tpc_action rs_get_tpc_action(struct iwl_mvm *mvm, + s32 sr, int weak, int strong, + int current_tpt, + int weak_tpt, int strong_tpt) +{ + /* stay until we have valid tpt */ + if (current_tpt == IWL_INVALID_VALUE) { + IWL_DEBUG_RATE(mvm, "no current tpt. stay.\n"); + return TPC_ACTION_STAY; + } - break; + /* Too many failures, increase txp */ + if (sr <= TPC_SR_FORCE_INCREASE || current_tpt == 0) { + IWL_DEBUG_RATE(mvm, "increase txp because of weak SR\n"); + return TPC_ACTION_NO_RESTIRCTION; + } - case IWL_MIMO3_SWITCH_GI: - if (!tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_20)) - break; - if (tbl->is_ht40 && !(ht_cap->cap & - IEEE80211_HT_CAP_SGI_40)) - break; + /* try decreasing first if applicable */ + if (weak != TPC_INVALID) { + if (weak_tpt == IWL_INVALID_VALUE && + (strong_tpt == IWL_INVALID_VALUE || + current_tpt >= strong_tpt)) { + IWL_DEBUG_RATE(mvm, + "no weak txp measurement. decrease txp\n"); + return TPC_ACTION_DECREASE; + } - IWL_DEBUG_RATE(mvm, "LQ: MIMO3 toggle SGI/NGI\n"); + if (weak_tpt > current_tpt) { + IWL_DEBUG_RATE(mvm, + "lower txp has better tpt. decrease txp\n"); + return TPC_ACTION_DECREASE; + } + } - /* Set up new search table for MIMO */ - memcpy(search_tbl, tbl, sz); - search_tbl->is_SGI = !tbl->is_SGI; - rs_set_expected_tpt_table(lq_sta, search_tbl); - /* - * If active table already uses the fastest possible - * modulation (dual stream with short guard interval), - * and it's working well, there's no need to look - * for a better type of modulation! - */ - if (tbl->is_SGI) { - s32 tpt = lq_sta->last_tpt / 100; - if (tpt >= search_tbl->expected_tpt[index]) - break; - } - search_tbl->current_rate = - rate_n_flags_from_tbl(mvm, search_tbl, - index, is_green); - update_search_tbl_counter = 1; - goto out; + /* next, increase if needed */ + if (sr < TPC_SR_NO_INCREASE && strong != TPC_INVALID) { + if (weak_tpt == IWL_INVALID_VALUE && + strong_tpt != IWL_INVALID_VALUE && + current_tpt < strong_tpt) { + IWL_DEBUG_RATE(mvm, + "higher txp has better tpt. increase txp\n"); + return TPC_ACTION_INCREASE; } - tbl->action++; - if (tbl->action > IWL_MIMO3_SWITCH_GI) - tbl->action = IWL_MIMO3_SWITCH_ANTENNA1; - if (tbl->action == start_action) - break; + if (weak_tpt < current_tpt && + (strong_tpt == IWL_INVALID_VALUE || + strong_tpt > current_tpt)) { + IWL_DEBUG_RATE(mvm, + "lower txp has worse tpt. increase txp\n"); + return TPC_ACTION_INCREASE; + } } - search_tbl->lq_type = LQ_NONE; - return 0; - out: - lq_sta->search_better_tbl = 1; - tbl->action++; - if (tbl->action > IWL_MIMO3_SWITCH_GI) - tbl->action = IWL_MIMO3_SWITCH_ANTENNA1; - if (update_search_tbl_counter) - search_tbl->action = tbl->action; - return 0; + IWL_DEBUG_RATE(mvm, "no need to increase or decrease txp - stay\n"); + return TPC_ACTION_STAY; } -/* - * Check whether we should continue using same modulation mode, or - * begin search for a new mode, based on: - * 1) # tx successes or failures while using this mode - * 2) # times calling this function - * 3) elapsed time in this mode (not used, for now) - */ -static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search) +static bool rs_tpc_perform(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + struct iwl_lq_sta *lq_sta, + struct iwl_scale_tbl_info *tbl) { - struct iwl_scale_tbl_info *tbl; - int i; - int active_tbl; - int flush_interval_passed = 0; - struct iwl_mvm *mvm; - - mvm = lq_sta->drv; - active_tbl = lq_sta->active_tbl; + struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv; + struct ieee80211_vif *vif = mvm_sta->vif; + struct ieee80211_chanctx_conf *chanctx_conf; + enum ieee80211_band band; + struct iwl_rate_scale_data *window; + struct rs_rate *rate = &tbl->rate; + enum tpc_action action; + s32 sr; + u8 cur = lq_sta->lq.reduced_tpc; + int current_tpt; + int weak, strong; + int weak_tpt = IWL_INVALID_VALUE, strong_tpt = IWL_INVALID_VALUE; - tbl = &(lq_sta->lq_info[active_tbl]); +#ifdef CONFIG_MAC80211_DEBUGFS + if (lq_sta->dbg_fixed_txp_reduction <= TPC_MAX_REDUCTION) { + IWL_DEBUG_RATE(mvm, "fixed tpc: %d\n", + lq_sta->dbg_fixed_txp_reduction); + lq_sta->lq.reduced_tpc = lq_sta->dbg_fixed_txp_reduction; + return cur != lq_sta->dbg_fixed_txp_reduction; + } +#endif - /* If we've been disallowing search, see if we should now allow it */ - if (lq_sta->stay_in_tbl) { - /* Elapsed time using current modulation mode */ - if (lq_sta->flush_timer) - flush_interval_passed = - time_after(jiffies, - (unsigned long)(lq_sta->flush_timer + - IWL_RATE_SCALE_FLUSH_INTVL)); + rcu_read_lock(); + chanctx_conf = rcu_dereference(vif->chanctx_conf); + if (WARN_ON(!chanctx_conf)) + band = IEEE80211_NUM_BANDS; + else + band = chanctx_conf->def.chan->band; + rcu_read_unlock(); - /* - * Check if we should allow search for new modulation mode. - * If many frames have failed or succeeded, or we've used - * this same modulation for a long time, allow search, and - * reset history stats that keep track of whether we should - * allow a new search. Also (below) reset all bitmaps and - * stats in active history. - */ - if (force_search || - (lq_sta->total_failed > lq_sta->max_failure_limit) || - (lq_sta->total_success > lq_sta->max_success_limit) || - ((!lq_sta->search_better_tbl) && - (lq_sta->flush_timer) && (flush_interval_passed))) { - IWL_DEBUG_RATE(mvm, - "LQ: stay is expired %d %d %d\n", - lq_sta->total_failed, - lq_sta->total_success, - flush_interval_passed); + if (!rs_tpc_allowed(mvm, vif, rate, band)) { + IWL_DEBUG_RATE(mvm, + "tpc is not allowed. remove txp restrictions\n"); + lq_sta->lq.reduced_tpc = TPC_NO_REDUCTION; + return cur != TPC_NO_REDUCTION; + } - /* Allow search for new mode */ - lq_sta->stay_in_tbl = 0; /* only place reset */ - lq_sta->total_failed = 0; - lq_sta->total_success = 0; - lq_sta->flush_timer = 0; - /* - * Else if we've used this modulation mode enough repetitions - * (regardless of elapsed time or success/failure), reset - * history bitmaps and rate-specific stats for all rates in - * active table. - */ - } else { - lq_sta->table_count++; - if (lq_sta->table_count >= - lq_sta->table_count_limit) { - lq_sta->table_count = 0; + rs_get_adjacent_txp(mvm, cur, &weak, &strong); - IWL_DEBUG_RATE(mvm, - "LQ: stay in table clear win\n"); - for (i = 0; i < IWL_RATE_COUNT; i++) - rs_rate_scale_clear_window( - &(tbl->win[i])); - } - } + /* Collect measured throughputs for current and adjacent rates */ + window = tbl->tpc_win; + sr = window[cur].success_ratio; + current_tpt = window[cur].average_tpt; + if (weak != TPC_INVALID) + weak_tpt = window[weak].average_tpt; + if (strong != TPC_INVALID) + strong_tpt = window[strong].average_tpt; - /* If transitioning to allow "search", reset all history - * bitmaps and stats in active table (this will become the new - * "search" table). */ - if (!lq_sta->stay_in_tbl) { - for (i = 0; i < IWL_RATE_COUNT; i++) - rs_rate_scale_clear_window(&(tbl->win[i])); - } + IWL_DEBUG_RATE(mvm, + "(TPC: %d): cur_tpt %d SR %d weak %d strong %d weak_tpt %d strong_tpt %d\n", + cur, current_tpt, sr, weak, strong, + weak_tpt, strong_tpt); + + action = rs_get_tpc_action(mvm, sr, weak, strong, + current_tpt, weak_tpt, strong_tpt); + + /* override actions if we are on the edge */ + if (weak == TPC_INVALID && action == TPC_ACTION_DECREASE) { + IWL_DEBUG_RATE(mvm, "already in lowest txp, stay\n"); + action = TPC_ACTION_STAY; + } else if (strong == TPC_INVALID && + (action == TPC_ACTION_INCREASE || + action == TPC_ACTION_NO_RESTIRCTION)) { + IWL_DEBUG_RATE(mvm, "already in highest txp, stay\n"); + action = TPC_ACTION_STAY; } -} - -/* - * setup rate table in uCode - */ -static void rs_update_rate_tbl(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, - struct iwl_scale_tbl_info *tbl, - int index, u8 is_green) -{ - u32 rate; - /* Update uCode's rate table. */ - rate = rate_n_flags_from_tbl(mvm, tbl, index, is_green); - rs_fill_link_cmd(mvm, lq_sta, rate); - iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_ASYNC, false); + switch (action) { + case TPC_ACTION_DECREASE: + lq_sta->lq.reduced_tpc = weak; + return true; + case TPC_ACTION_INCREASE: + lq_sta->lq.reduced_tpc = strong; + return true; + case TPC_ACTION_NO_RESTIRCTION: + lq_sta->lq.reduced_tpc = TPC_NO_REDUCTION; + return true; + case TPC_ACTION_STAY: + /* do nothing */ + break; + } + return false; } /* @@ -2025,27 +1948,24 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, int low = IWL_RATE_INVALID; int high = IWL_RATE_INVALID; int index; - int i; struct iwl_rate_scale_data *window = NULL; int current_tpt = IWL_INVALID_VALUE; int low_tpt = IWL_INVALID_VALUE; int high_tpt = IWL_INVALID_VALUE; u32 fail_count; - s8 scale_action = 0; + enum rs_action scale_action = RS_ACTION_STAY; u16 rate_mask; u8 update_lq = 0; struct iwl_scale_tbl_info *tbl, *tbl1; - u16 rate_scale_index_msk = 0; - u8 is_green = 0; u8 active_tbl = 0; u8 done_search = 0; u16 high_low; s32 sr; u8 tid = IWL_MAX_TID_COUNT; + u8 prev_agg = lq_sta->is_agg; struct iwl_mvm_sta *sta_priv = (void *)sta->drv_priv; struct iwl_mvm_tid_data *tid_data; - - IWL_DEBUG_RATE(mvm, "rate scale calculate new rate for skb\n"); + struct rs_rate *rate; /* Send management frames and NO_ACK data using lowest rate. */ /* TODO: this could probably be improved.. */ @@ -2053,9 +1973,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, info->flags & IEEE80211_TX_CTL_NO_ACK) return; - lq_sta->supp_rates = sta->supp_rates[lq_sta->band]; - - tid = rs_tl_add_packet(lq_sta, hdr); + tid = rs_get_tid(lq_sta, hdr); if ((tid != IWL_MAX_TID_COUNT) && (lq_sta->tx_agg_tid_en & (1 << tid))) { tid_data = &sta_priv->tid_data[tid]; @@ -2078,50 +1996,30 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, active_tbl = 1 - lq_sta->active_tbl; tbl = &(lq_sta->lq_info[active_tbl]); - if (is_legacy(tbl->lq_type)) - lq_sta->is_green = 0; - else - lq_sta->is_green = rs_use_green(sta); - is_green = lq_sta->is_green; + rate = &tbl->rate; + + if (prev_agg != lq_sta->is_agg) { + IWL_DEBUG_RATE(mvm, + "Aggregation changed: prev %d current %d. Update expected TPT table\n", + prev_agg, lq_sta->is_agg); + rs_set_expected_tpt_table(lq_sta, tbl); + rs_rate_scale_clear_tbl_windows(mvm, tbl); + } /* current tx rate */ index = lq_sta->last_txrate_idx; - IWL_DEBUG_RATE(mvm, "Rate scale index %d for type %d\n", index, - tbl->lq_type); - /* rates available for this association, and for modulation mode */ - rate_mask = rs_get_supported_rates(lq_sta, hdr, tbl->lq_type); - - IWL_DEBUG_RATE(mvm, "mask 0x%04X\n", rate_mask); - - /* mask with station rate restriction */ - if (is_legacy(tbl->lq_type)) { - if (lq_sta->band == IEEE80211_BAND_5GHZ) - /* supp_rates has no CCK bits in A mode */ - rate_scale_index_msk = (u16) (rate_mask & - (lq_sta->supp_rates << IWL_FIRST_OFDM_RATE)); - else - rate_scale_index_msk = (u16) (rate_mask & - lq_sta->supp_rates); + rate_mask = rs_get_supported_rates(lq_sta, rate); - } else { - rate_scale_index_msk = rate_mask; - } - - if (!rate_scale_index_msk) - rate_scale_index_msk = rate_mask; - - if (!((1 << index) & rate_scale_index_msk)) { + if (!(BIT(index) & rate_mask)) { IWL_ERR(mvm, "Current Rate is not valid\n"); if (lq_sta->search_better_tbl) { /* revert to active table if search table is not valid*/ - tbl->lq_type = LQ_NONE; + rate->type = LQ_NONE; lq_sta->search_better_tbl = 0; tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - /* get "active" rate info */ - index = iwl_hwrate_to_plcp_idx(tbl->current_rate); - rs_update_rate_tbl(mvm, lq_sta, tbl, index, is_green); + rs_update_rate_tbl(mvm, sta, lq_sta, &tbl->rate); } return; } @@ -2138,6 +2036,9 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, index = lq_sta->max_rate_idx; update_lq = 1; window = &(tbl->win[index]); + IWL_DEBUG_RATE(mvm, + "Forcing user max rate %d\n", + index); goto lq_update; } @@ -2154,8 +2055,9 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, if ((fail_count < IWL_RATE_MIN_FAILURE_TH) && (window->success_counter < IWL_RATE_MIN_SUCCESS_TH)) { IWL_DEBUG_RATE(mvm, - "LQ: still below TH. succ=%d total=%d for index %d\n", - window->success_counter, window->counter, index); + "(%s: %d): Test Window: succ %d total %d\n", + rs_pretty_lq_type(rate->type), + index, window->success_counter, window->counter); /* Can't calculate this yet; not enough history */ window->average_tpt = IWL_INVALID_VALUE; @@ -2170,8 +2072,6 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, * actual average throughput */ if (window->average_tpt != ((window->success_ratio * tbl->expected_tpt[index] + 64) / 128)) { - IWL_ERR(mvm, - "expected_tpt should have been calculated by now\n"); window->average_tpt = ((window->success_ratio * tbl->expected_tpt[index] + 64) / 128); } @@ -2183,34 +2083,33 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, * continuing to use the setup that we've been trying. */ if (window->average_tpt > lq_sta->last_tpt) { IWL_DEBUG_RATE(mvm, - "LQ: SWITCHING TO NEW TABLE suc=%d cur-tpt=%d old-tpt=%d\n", + "SWITCHING TO NEW TABLE SR: %d " + "cur-tpt %d old-tpt %d\n", window->success_ratio, window->average_tpt, lq_sta->last_tpt); - if (!is_legacy(tbl->lq_type)) - lq_sta->enable_counter = 1; - /* Swap tables; "search" becomes "active" */ lq_sta->active_tbl = active_tbl; current_tpt = window->average_tpt; /* Else poor success; go back to mode in "active" table */ } else { IWL_DEBUG_RATE(mvm, - "LQ: GOING BACK TO THE OLD TABLE suc=%d cur-tpt=%d old-tpt=%d\n", + "GOING BACK TO THE OLD TABLE: SR %d " + "cur-tpt %d old-tpt %d\n", window->success_ratio, window->average_tpt, lq_sta->last_tpt); /* Nullify "search" table */ - tbl->lq_type = LQ_NONE; + rate->type = LQ_NONE; /* Revert to "active" table */ active_tbl = lq_sta->active_tbl; tbl = &(lq_sta->lq_info[active_tbl]); /* Revert to "active" rate and throughput info */ - index = iwl_hwrate_to_plcp_idx(tbl->current_rate); + index = tbl->rate.index; current_tpt = lq_sta->last_tpt; /* Need to set up a new rate table in uCode */ @@ -2226,8 +2125,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, /* (Else) not in search of better modulation mode, try for better * starting rate, while staying in this mode. */ - high_low = rs_get_adjacent_rate(mvm, index, rate_scale_index_msk, - tbl->lq_type); + high_low = rs_get_adjacent_rate(mvm, index, rate_mask, rate->type); low = high_low & 0xff; high = (high_low >> 8) & 0xff; @@ -2245,94 +2143,61 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm, if (high != IWL_RATE_INVALID) high_tpt = tbl->win[high].average_tpt; - scale_action = 0; + IWL_DEBUG_RATE(mvm, + "(%s: %d): cur_tpt %d SR %d low %d high %d low_tpt %d high_tpt %d\n", + rs_pretty_lq_type(rate->type), index, current_tpt, sr, + low, high, low_tpt, high_tpt); - /* Too many failures, decrease rate */ - if ((sr <= IWL_RATE_DECREASE_TH) || (current_tpt == 0)) { - IWL_DEBUG_RATE(mvm, - "decrease rate because of low success_ratio\n"); - scale_action = -1; - /* No throughput measured yet for adjacent rates; try increase. */ - } else if ((low_tpt == IWL_INVALID_VALUE) && - (high_tpt == IWL_INVALID_VALUE)) { - if (high != IWL_RATE_INVALID && sr >= IWL_RATE_INCREASE_TH) - scale_action = 1; - else if (low != IWL_RATE_INVALID) - scale_action = 0; - } - - /* Both adjacent throughputs are measured, but neither one has better - * throughput; we're using the best rate, don't change it! */ - else if ((low_tpt != IWL_INVALID_VALUE) && - (high_tpt != IWL_INVALID_VALUE) && - (low_tpt < current_tpt) && - (high_tpt < current_tpt)) - scale_action = 0; - - /* At least one adjacent rate's throughput is measured, - * and may have better performance. */ - else { - /* Higher adjacent rate's throughput is measured */ - if (high_tpt != IWL_INVALID_VALUE) { - /* Higher rate has better throughput */ - if (high_tpt > current_tpt && - sr >= IWL_RATE_INCREASE_TH) { - scale_action = 1; - } else { - scale_action = 0; - } + scale_action = rs_get_rate_action(mvm, tbl, sr, low, high, + current_tpt, low_tpt, high_tpt); - /* Lower adjacent rate's throughput is measured */ - } else if (low_tpt != IWL_INVALID_VALUE) { - /* Lower rate has better throughput */ - if (low_tpt > current_tpt) { - IWL_DEBUG_RATE(mvm, - "decrease rate because of low tpt\n"); - scale_action = -1; - } else if (sr >= IWL_RATE_INCREASE_TH) { - scale_action = 1; - } - } + /* Force a search in case BT doesn't like us being in MIMO */ + if (is_mimo(rate) && + !iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta)) { + IWL_DEBUG_RATE(mvm, + "BT Coex forbids MIMO. Search for new config\n"); + rs_stay_in_table(lq_sta, true); + goto lq_update; } - /* Sanity check; asked for decrease, but success rate or throughput - * has been good at old rate. Don't change it. */ - if ((scale_action == -1) && (low != IWL_RATE_INVALID) && - ((sr > IWL_RATE_HIGH_TH) || - (current_tpt > (100 * tbl->expected_tpt[low])))) - scale_action = 0; - switch (scale_action) { - case -1: + case RS_ACTION_DOWNSCALE: /* Decrease starting rate, update uCode's rate table */ if (low != IWL_RATE_INVALID) { update_lq = 1; index = low; + } else { + IWL_DEBUG_RATE(mvm, + "At the bottom rate. Can't decrease\n"); } break; - case 1: + case RS_ACTION_UPSCALE: /* Increase starting rate, update uCode's rate table */ if (high != IWL_RATE_INVALID) { update_lq = 1; index = high; + } else { + IWL_DEBUG_RATE(mvm, + "At the top rate. Can't increase\n"); } break; - case 0: + case RS_ACTION_STAY: /* No change */ + if (lq_sta->rs_state == RS_STATE_STAY_IN_COLUMN) + update_lq = rs_tpc_perform(mvm, sta, lq_sta, tbl); + break; default: break; } - IWL_DEBUG_RATE(mvm, - "choose rate scale index %d action %d low %d high %d type %d\n", - index, scale_action, low, high, tbl->lq_type); - lq_update: /* Replace uCode's rate table for the destination station. */ - if (update_lq) - rs_update_rate_tbl(mvm, lq_sta, tbl, index, is_green); + if (update_lq) { + tbl->rate.index = index; + rs_update_rate_tbl(mvm, sta, lq_sta, &tbl->rate); + } rs_stay_in_table(lq_sta, false); @@ -2343,59 +2208,72 @@ lq_update: * 3) Allowing a new search */ if (!update_lq && !done_search && - !lq_sta->stay_in_tbl && window->counter) { + lq_sta->rs_state == RS_STATE_SEARCH_CYCLE_STARTED + && window->counter) { + enum rs_column next_column; + /* Save current throughput to compare with "search" throughput*/ lq_sta->last_tpt = current_tpt; - /* Select a new "search" modulation mode to try. - * If one is found, set up the new "search" table. */ - if (is_legacy(tbl->lq_type)) - rs_move_legacy_other(mvm, lq_sta, sta, index); - else if (is_siso(tbl->lq_type)) - rs_move_siso_to_other(mvm, lq_sta, sta, index); - else if (is_mimo2(tbl->lq_type)) - rs_move_mimo2_to_other(mvm, lq_sta, sta, index); - else - rs_move_mimo3_to_other(mvm, lq_sta, sta, index); + IWL_DEBUG_RATE(mvm, + "Start Search: update_lq %d done_search %d rs_state %d win->counter %d\n", + update_lq, done_search, lq_sta->rs_state, + window->counter); + + next_column = rs_get_next_column(mvm, lq_sta, sta, tbl); + if (next_column != RS_COLUMN_INVALID) { + int ret = rs_switch_to_column(mvm, lq_sta, sta, + next_column); + if (!ret) + lq_sta->search_better_tbl = 1; + } else { + IWL_DEBUG_RATE(mvm, + "No more columns to explore in search cycle. Go to RS_STATE_SEARCH_CYCLE_ENDED\n"); + lq_sta->rs_state = RS_STATE_SEARCH_CYCLE_ENDED; + } /* If new "search" mode was selected, set up in uCode table */ if (lq_sta->search_better_tbl) { /* Access the "search" table, clear its history. */ tbl = &(lq_sta->lq_info[(1 - lq_sta->active_tbl)]); - for (i = 0; i < IWL_RATE_COUNT; i++) - rs_rate_scale_clear_window(&(tbl->win[i])); + rs_rate_scale_clear_tbl_windows(mvm, tbl); /* Use new "search" start rate */ - index = iwl_hwrate_to_plcp_idx(tbl->current_rate); + index = tbl->rate.index; - IWL_DEBUG_RATE(mvm, - "Switch current mcs: %X index: %d\n", - tbl->current_rate, index); - rs_fill_link_cmd(mvm, lq_sta, tbl->current_rate); - iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_ASYNC, false); + rs_dump_rate(mvm, &tbl->rate, + "Switch to SEARCH TABLE:"); + rs_fill_lq_cmd(mvm, sta, lq_sta, &tbl->rate); + iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, false); } else { done_search = 1; } } - if (done_search && !lq_sta->stay_in_tbl) { + if (done_search && lq_sta->rs_state == RS_STATE_SEARCH_CYCLE_ENDED) { /* If the "active" (non-search) mode was legacy, * and we've tried switching antennas, * but we haven't been able to try HT modes (not available), * stay with best antenna legacy modulation for a while * before next round of mode comparisons. */ tbl1 = &(lq_sta->lq_info[lq_sta->active_tbl]); - if (is_legacy(tbl1->lq_type) && !sta->ht_cap.ht_supported && - lq_sta->action_counter > tbl1->max_search) { + if (is_legacy(&tbl1->rate)) { IWL_DEBUG_RATE(mvm, "LQ: STAY in legacy table\n"); - rs_set_stay_in_table(mvm, 1, lq_sta); - } + if (tid != IWL_MAX_TID_COUNT) { + tid_data = &sta_priv->tid_data[tid]; + if (tid_data->state != IWL_AGG_OFF) { + IWL_DEBUG_RATE(mvm, + "Stop aggregation on tid %d\n", + tid); + ieee80211_stop_tx_ba_session(sta, tid); + } + } + rs_set_stay_in_table(mvm, 1, lq_sta); + } else { /* If we're in an HT mode, and all 3 mode switch actions * have been tried and compared, stay in this best modulation * mode for a while before next round of mode comparisons. */ - if (lq_sta->enable_counter && - (lq_sta->action_counter >= tbl1->max_search)) { if ((lq_sta->last_tpt > IWL_AGG_TPT_THREHOLD) && (lq_sta->tx_agg_tid_en & (1 << tid)) && (tid != IWL_MAX_TID_COUNT)) { @@ -2413,7 +2291,6 @@ lq_update: } out: - tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, index, is_green); lq_sta->last_txrate_idx = index; } @@ -2434,13 +2311,12 @@ out: static void rs_initialize_lq(struct iwl_mvm *mvm, struct ieee80211_sta *sta, struct iwl_lq_sta *lq_sta, - enum ieee80211_band band) + enum ieee80211_band band, + bool init) { struct iwl_scale_tbl_info *tbl; - int rate_idx; + struct rs_rate *rate; int i; - u32 rate; - u8 use_green = rs_use_green(sta); u8 active_tbl = 0; u8 valid_tx_ant; @@ -2449,7 +2325,7 @@ static void rs_initialize_lq(struct iwl_mvm *mvm, i = lq_sta->last_txrate_idx; - valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); + valid_tx_ant = mvm->fw->valid_tx_ant; if (!lq_sta->search_better_tbl) active_tbl = lq_sta->active_tbl; @@ -2457,27 +2333,30 @@ static void rs_initialize_lq(struct iwl_mvm *mvm, active_tbl = 1 - lq_sta->active_tbl; tbl = &(lq_sta->lq_info[active_tbl]); + rate = &tbl->rate; if ((i < 0) || (i >= IWL_RATE_COUNT)) i = 0; - rate = iwl_rates[i].plcp; - tbl->ant_type = first_antenna(valid_tx_ant); - rate |= tbl->ant_type << RATE_MCS_ANT_POS; - - if (i >= IWL_FIRST_CCK_RATE && i <= IWL_LAST_CCK_RATE) - rate |= RATE_MCS_CCK_MSK; + rate->index = i; + rate->ant = first_antenna(valid_tx_ant); + rate->sgi = false; + rate->bw = RATE_MCS_CHAN_WIDTH_20; + if (band == IEEE80211_BAND_5GHZ) + rate->type = LQ_LEGACY_A; + else + rate->type = LQ_LEGACY_G; - rs_get_tbl_info_from_mcs(rate, band, tbl, &rate_idx); - if (!rs_is_valid_ant(valid_tx_ant, tbl->ant_type)) - rs_toggle_antenna(valid_tx_ant, &rate, tbl); + WARN_ON_ONCE(rate->ant != ANT_A && rate->ant != ANT_B); + if (rate->ant == ANT_A) + tbl->column = RS_COLUMN_LEGACY_ANT_A; + else + tbl->column = RS_COLUMN_LEGACY_ANT_B; - rate = rate_n_flags_from_tbl(mvm, tbl, rate_idx, use_green); - tbl->current_rate = rate; rs_set_expected_tpt_table(lq_sta, tbl); - rs_fill_link_cmd(NULL, lq_sta, rate); + rs_fill_lq_cmd(mvm, sta, lq_sta, rate); /* TODO restore station should remember the lq cmd */ - iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_SYNC, true); + iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, init); } static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta, @@ -2490,9 +2369,6 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta, struct iwl_mvm *mvm __maybe_unused = IWL_OP_MODE_GET_MVM(op_mode); struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); struct iwl_lq_sta *lq_sta = mvm_sta; - int rate_idx; - - IWL_DEBUG_RATE_LIMIT(mvm, "rate scale calculate new rate for skb\n"); /* Get max rate if user set max rate */ if (lq_sta) { @@ -2515,37 +2391,10 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta, if (rate_control_send_low(sta, mvm_sta, txrc)) return; - rate_idx = lq_sta->last_txrate_idx; - - if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) { - rate_idx -= IWL_FIRST_OFDM_RATE; - /* 6M and 9M shared same MCS index */ - rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0; - if (rs_extract_rate(lq_sta->last_rate_n_flags) >= - IWL_RATE_MIMO3_6M_PLCP) - rate_idx = rate_idx + (2 * MCS_INDEX_PER_STREAM); - else if (rs_extract_rate(lq_sta->last_rate_n_flags) >= - IWL_RATE_MIMO2_6M_PLCP) - rate_idx = rate_idx + MCS_INDEX_PER_STREAM; - info->control.rates[0].flags = IEEE80211_TX_RC_MCS; - if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK) - info->control.rates[0].flags |= IEEE80211_TX_RC_SHORT_GI; - if (lq_sta->last_rate_n_flags & RATE_MCS_CHAN_WIDTH_40) /* TODO */ - info->control.rates[0].flags |= IEEE80211_TX_RC_40_MHZ_WIDTH; - if (lq_sta->last_rate_n_flags & RATE_HT_MCS_GF_MSK) - info->control.rates[0].flags |= IEEE80211_TX_RC_GREEN_FIELD; - } else { - /* Check for invalid rates */ - if ((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT_LEGACY) || - ((sband->band == IEEE80211_BAND_5GHZ) && - (rate_idx < IWL_FIRST_OFDM_RATE))) - rate_idx = rate_lowest_index(sband, sta); - /* On valid 5 GHz rate, adjust index */ - else if (sband->band == IEEE80211_BAND_5GHZ) - rate_idx -= IWL_FIRST_OFDM_RATE; - info->control.rates[0].flags = 0; - } - info->control.rates[0].idx = rate_idx; + iwl_mvm_hwrate_to_tx_rate(lq_sta->last_rate_n_flags, + info->band, &info->control.rates[0]); + + info->control.rates[0].count = 1; } static void *rs_alloc_sta(void *mvm_rate, struct ieee80211_sta *sta, @@ -2561,15 +2410,141 @@ static void *rs_alloc_sta(void *mvm_rate, struct ieee80211_sta *sta, return &sta_priv->lq_sta; } +static int rs_vht_highest_rx_mcs_index(struct ieee80211_sta_vht_cap *vht_cap, + int nss) +{ + u16 rx_mcs = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) & + (0x3 << (2 * (nss - 1))); + rx_mcs >>= (2 * (nss - 1)); + + if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_7) + return IWL_RATE_MCS_7_INDEX; + else if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_8) + return IWL_RATE_MCS_8_INDEX; + else if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_9) + return IWL_RATE_MCS_9_INDEX; + + WARN_ON_ONCE(rx_mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED); + return -1; +} + +static void rs_vht_set_enabled_rates(struct ieee80211_sta *sta, + struct ieee80211_sta_vht_cap *vht_cap, + struct iwl_lq_sta *lq_sta) +{ + int i; + int highest_mcs = rs_vht_highest_rx_mcs_index(vht_cap, 1); + + if (highest_mcs >= IWL_RATE_MCS_0_INDEX) { + for (i = IWL_RATE_MCS_0_INDEX; i <= highest_mcs; i++) { + if (i == IWL_RATE_9M_INDEX) + continue; + + /* VHT MCS9 isn't valid for 20Mhz for NSS=1,2 */ + if (i == IWL_RATE_MCS_9_INDEX && + sta->bandwidth == IEEE80211_STA_RX_BW_20) + continue; + + lq_sta->active_siso_rate |= BIT(i); + } + } + + if (sta->rx_nss < 2) + return; + + highest_mcs = rs_vht_highest_rx_mcs_index(vht_cap, 2); + if (highest_mcs >= IWL_RATE_MCS_0_INDEX) { + for (i = IWL_RATE_MCS_0_INDEX; i <= highest_mcs; i++) { + if (i == IWL_RATE_9M_INDEX) + continue; + + /* VHT MCS9 isn't valid for 20Mhz for NSS=1,2 */ + if (i == IWL_RATE_MCS_9_INDEX && + sta->bandwidth == IEEE80211_STA_RX_BW_20) + continue; + + lq_sta->active_mimo2_rate |= BIT(i); + } + } +} + +#ifdef CONFIG_IWLWIFI_DEBUGFS +static void iwl_mvm_reset_frame_stats(struct iwl_mvm *mvm, + struct iwl_mvm_frame_stats *stats) +{ + spin_lock_bh(&mvm->drv_stats_lock); + memset(stats, 0, sizeof(*stats)); + spin_unlock_bh(&mvm->drv_stats_lock); +} + +void iwl_mvm_update_frame_stats(struct iwl_mvm *mvm, + struct iwl_mvm_frame_stats *stats, + u32 rate, bool agg) +{ + u8 nss = 0, mcs = 0; + + spin_lock(&mvm->drv_stats_lock); + + if (agg) + stats->agg_frames++; + + stats->success_frames++; + + switch (rate & RATE_MCS_CHAN_WIDTH_MSK) { + case RATE_MCS_CHAN_WIDTH_20: + stats->bw_20_frames++; + break; + case RATE_MCS_CHAN_WIDTH_40: + stats->bw_40_frames++; + break; + case RATE_MCS_CHAN_WIDTH_80: + stats->bw_80_frames++; + break; + default: + WARN_ONCE(1, "bad BW. rate 0x%x", rate); + } + + if (rate & RATE_MCS_HT_MSK) { + stats->ht_frames++; + mcs = rate & RATE_HT_MCS_RATE_CODE_MSK; + nss = ((rate & RATE_HT_MCS_NSS_MSK) >> RATE_HT_MCS_NSS_POS) + 1; + } else if (rate & RATE_MCS_VHT_MSK) { + stats->vht_frames++; + mcs = rate & RATE_VHT_MCS_RATE_CODE_MSK; + nss = ((rate & RATE_VHT_MCS_NSS_MSK) >> + RATE_VHT_MCS_NSS_POS) + 1; + } else { + stats->legacy_frames++; + } + + if (nss == 1) + stats->siso_frames++; + else if (nss == 2) + stats->mimo2_frames++; + + if (rate & RATE_MCS_SGI_MSK) + stats->sgi_frames++; + else + stats->ngi_frames++; + + stats->last_rates[stats->last_frame_idx] = rate; + stats->last_frame_idx = (stats->last_frame_idx + 1) % + ARRAY_SIZE(stats->last_rates); + + spin_unlock(&mvm->drv_stats_lock); +} +#endif + /* * Called after adding a new station to initialize rate scaling */ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - enum ieee80211_band band) + enum ieee80211_band band, bool init) { int i, j; struct ieee80211_hw *hw = mvm->hw; struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; + struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap; struct iwl_mvm_sta *sta_priv; struct iwl_lq_sta *lq_sta; struct ieee80211_supported_band *sband; @@ -2577,19 +2552,17 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, sta_priv = (struct iwl_mvm_sta *)sta->drv_priv; lq_sta = &sta_priv->lq_sta; + memset(lq_sta, 0, sizeof(*lq_sta)); + sband = hw->wiphy->bands[band]; lq_sta->lq.sta_id = sta_priv->sta_id; for (j = 0; j < LQ_SIZE; j++) - for (i = 0; i < IWL_RATE_COUNT; i++) - rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]); + rs_rate_scale_clear_tbl_windows(mvm, &lq_sta->lq_info[j]); lq_sta->flush_timer = 0; - lq_sta->supp_rates = sta->supp_rates[sband->band]; - for (j = 0; j < LQ_SIZE; j++) - for (i = 0; i < IWL_RATE_COUNT; i++) - rs_rate_scale_clear_window(&lq_sta->lq_info[j].win[i]); + lq_sta->last_tx = jiffies; IWL_DEBUG_RATE(mvm, "LQ: *** rate scale station global init for station %d ***\n", @@ -2601,7 +2574,6 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lq_sta->max_rate_idx = -1; lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX; - lq_sta->is_green = rs_use_green(sta); lq_sta->band = sband->band; /* * active legacy rates as per supported rates bitmap @@ -2611,44 +2583,50 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, for_each_set_bit(i, &supp, BITS_PER_LONG) lq_sta->active_legacy_rate |= BIT(sband->bitrates[i].hw_value); - /* - * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3), - * supp_rates[] does not; shift to convert format, force 9 MBits off. - */ - lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1; - lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1; - lq_sta->active_siso_rate &= ~((u16)0x2); - lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE; - - /* Same here */ - lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1; - lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1; - lq_sta->active_mimo2_rate &= ~((u16)0x2); - lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE; - - lq_sta->active_mimo3_rate = ht_cap->mcs.rx_mask[2] << 1; - lq_sta->active_mimo3_rate |= ht_cap->mcs.rx_mask[2] & 0x1; - lq_sta->active_mimo3_rate &= ~((u16)0x2); - lq_sta->active_mimo3_rate <<= IWL_FIRST_OFDM_RATE; + /* TODO: should probably account for rx_highest for both HT/VHT */ + if (!vht_cap || !vht_cap->vht_supported) { + /* active_siso_rate mask includes 9 MBits (bit 5), + * and CCK (bits 0-3), supp_rates[] does not; + * shift to convert format, force 9 MBits off. + */ + lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1; + lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1; + lq_sta->active_siso_rate &= ~((u16)0x2); + lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE; + + /* Same here */ + lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1; + lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1; + lq_sta->active_mimo2_rate &= ~((u16)0x2); + lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE; + + lq_sta->is_vht = false; + } else { + rs_vht_set_enabled_rates(sta, vht_cap, lq_sta); + lq_sta->is_vht = true; + } - IWL_DEBUG_RATE(mvm, - "SISO-RATE=%X MIMO2-RATE=%X MIMO3-RATE=%X\n", + lq_sta->max_legacy_rate_idx = find_last_bit(&lq_sta->active_legacy_rate, + BITS_PER_LONG); + lq_sta->max_siso_rate_idx = find_last_bit(&lq_sta->active_siso_rate, + BITS_PER_LONG); + lq_sta->max_mimo2_rate_idx = find_last_bit(&lq_sta->active_mimo2_rate, + BITS_PER_LONG); + + IWL_DEBUG_RATE(mvm, "RATE MASK: LEGACY=%lX SISO=%lX MIMO2=%lX VHT=%d\n", + lq_sta->active_legacy_rate, lq_sta->active_siso_rate, lq_sta->active_mimo2_rate, - lq_sta->active_mimo3_rate); + lq_sta->is_vht); + IWL_DEBUG_RATE(mvm, "MAX RATE: LEGACY=%d SISO=%d MIMO2=%d\n", + lq_sta->max_legacy_rate_idx, + lq_sta->max_siso_rate_idx, + lq_sta->max_mimo2_rate_idx); /* These values will be overridden later */ lq_sta->lq.single_stream_ant_msk = - first_antenna(iwl_fw_valid_tx_ant(mvm->fw)); - lq_sta->lq.dual_stream_ant_msk = - iwl_fw_valid_tx_ant(mvm->fw) & - ~first_antenna(iwl_fw_valid_tx_ant(mvm->fw)); - if (!lq_sta->lq.dual_stream_ant_msk) { - lq_sta->lq.dual_stream_ant_msk = ANT_AB; - } else if (num_of_ant(iwl_fw_valid_tx_ant(mvm->fw)) == 2) { - lq_sta->lq.dual_stream_ant_msk = - iwl_fw_valid_tx_ant(mvm->fw); - } + first_antenna(mvm->fw->valid_tx_ant); + lq_sta->lq.dual_stream_ant_msk = ANT_AB; /* as default allow aggregation for all tids */ lq_sta->tx_agg_tid_en = IWL_AGG_ALL_TID; @@ -2661,127 +2639,201 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lq_sta->is_agg = 0; #ifdef CONFIG_MAC80211_DEBUGFS lq_sta->dbg_fixed_rate = 0; + lq_sta->dbg_fixed_txp_reduction = TPC_INVALID; +#endif +#ifdef CONFIG_IWLWIFI_DEBUGFS + iwl_mvm_reset_frame_stats(mvm, &mvm->drv_rx_stats); #endif + rs_initialize_lq(mvm, sta, lq_sta, band, init); +} + +static void rs_rate_update(void *mvm_r, + struct ieee80211_supported_band *sband, + struct cfg80211_chan_def *chandef, + struct ieee80211_sta *sta, void *priv_sta, + u32 changed) +{ + u8 tid; + struct iwl_op_mode *op_mode = + (struct iwl_op_mode *)mvm_r; + struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode); + + /* Stop any ongoing aggregations as rs starts off assuming no agg */ + for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) + ieee80211_stop_tx_ba_session(sta, tid); - rs_initialize_lq(mvm, sta, lq_sta, band); + iwl_mvm_rs_rate_init(mvm, sta, sband->band, false); } -static void rs_fill_link_cmd(struct iwl_mvm *mvm, - struct iwl_lq_sta *lq_sta, u32 new_rate) +#ifdef CONFIG_MAC80211_DEBUGFS +static void rs_build_rates_table_from_fixed(struct iwl_mvm *mvm, + struct iwl_lq_cmd *lq_cmd, + enum ieee80211_band band, + u32 ucode_rate) { - struct iwl_scale_tbl_info tbl_type; - int index = 0; - int rate_idx; - int repeat_rate = 0; - u8 ant_toggle_cnt = 0; - u8 use_ht_possible = 1; + struct rs_rate rate; + int i; + int num_rates = ARRAY_SIZE(lq_cmd->rs_table); + __le32 ucode_rate_le32 = cpu_to_le32(ucode_rate); + + for (i = 0; i < num_rates; i++) + lq_cmd->rs_table[i] = ucode_rate_le32; + + rs_rate_from_ucode_rate(ucode_rate, band, &rate); + + if (is_mimo(&rate)) + lq_cmd->mimo_delim = num_rates - 1; + else + lq_cmd->mimo_delim = 0; +} +#endif /* CONFIG_MAC80211_DEBUGFS */ + +static void rs_fill_rates_for_column(struct iwl_mvm *mvm, + struct iwl_lq_sta *lq_sta, + struct rs_rate *rate, + __le32 *rs_table, int *rs_table_index, + int num_rates, int num_retries, + u8 valid_tx_ant, bool toggle_ant) +{ + int i, j; + __le32 ucode_rate; + bool bottom_reached = false; + int prev_rate_idx = rate->index; + int end = LINK_QUAL_MAX_RETRY_NUM; + int index = *rs_table_index; + + for (i = 0; i < num_rates && index < end; i++) { + ucode_rate = cpu_to_le32(ucode_rate_from_rs_rate(mvm, rate)); + for (j = 0; j < num_retries && index < end; j++, index++) + rs_table[index] = ucode_rate; + + if (toggle_ant) + rs_toggle_antenna(valid_tx_ant, rate); + + prev_rate_idx = rate->index; + bottom_reached = rs_get_lower_rate_in_column(lq_sta, rate); + if (bottom_reached && !is_legacy(rate)) + break; + } + + if (!bottom_reached) + rate->index = prev_rate_idx; + + *rs_table_index = index; +} + +/* Building the rate table is non trivial. When we're in MIMO2/VHT/80Mhz/SGI + * column the rate table should look like this: + * + * rate[0] 0x400D019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI + * rate[1] 0x400D019 VHT | ANT: AB BW: 80Mhz MCS: 9 NSS: 2 SGI + * rate[2] 0x400D018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI + * rate[3] 0x400D018 VHT | ANT: AB BW: 80Mhz MCS: 8 NSS: 2 SGI + * rate[4] 0x400D017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI + * rate[5] 0x400D017 VHT | ANT: AB BW: 80Mhz MCS: 7 NSS: 2 SGI + * rate[6] 0x4005007 VHT | ANT: A BW: 80Mhz MCS: 7 NSS: 1 NGI + * rate[7] 0x4009006 VHT | ANT: B BW: 80Mhz MCS: 6 NSS: 1 NGI + * rate[8] 0x4005005 VHT | ANT: A BW: 80Mhz MCS: 5 NSS: 1 NGI + * rate[9] 0x800B Legacy | ANT: B Rate: 36 Mbps + * rate[10] 0x4009 Legacy | ANT: A Rate: 24 Mbps + * rate[11] 0x8007 Legacy | ANT: B Rate: 18 Mbps + * rate[12] 0x4005 Legacy | ANT: A Rate: 12 Mbps + * rate[13] 0x800F Legacy | ANT: B Rate: 9 Mbps + * rate[14] 0x400D Legacy | ANT: A Rate: 6 Mbps + * rate[15] 0x800D Legacy | ANT: B Rate: 6 Mbps + */ +static void rs_build_rates_table(struct iwl_mvm *mvm, + struct iwl_lq_sta *lq_sta, + const struct rs_rate *initial_rate) +{ + struct rs_rate rate; + int num_rates, num_retries, index = 0; u8 valid_tx_ant = 0; struct iwl_lq_cmd *lq_cmd = &lq_sta->lq; + bool toggle_ant = false; - /* Override starting rate (index 0) if needed for debug purposes */ - rs_dbgfs_set_mcs(lq_sta, &new_rate, index); + memcpy(&rate, initial_rate, sizeof(rate)); - /* Interpret new_rate (rate_n_flags) */ - rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, - &tbl_type, &rate_idx); + valid_tx_ant = mvm->fw->valid_tx_ant; - /* How many times should we repeat the initial rate? */ - if (is_legacy(tbl_type.lq_type)) { - ant_toggle_cnt = 1; - repeat_rate = IWL_NUMBER_TRY; + if (is_siso(&rate)) { + num_rates = RS_INITIAL_SISO_NUM_RATES; + num_retries = RS_HT_VHT_RETRIES_PER_RATE; + } else if (is_mimo(&rate)) { + num_rates = RS_INITIAL_MIMO_NUM_RATES; + num_retries = RS_HT_VHT_RETRIES_PER_RATE; } else { - repeat_rate = min(IWL_HT_NUMBER_TRY, - LINK_QUAL_AGG_DISABLE_START_DEF - 1); - } - - lq_cmd->mimo_delim = is_mimo(tbl_type.lq_type) ? 1 : 0; - - /* Fill 1st table entry (index 0) */ - lq_cmd->rs_table[index] = cpu_to_le32(new_rate); - - if (num_of_ant(tbl_type.ant_type) == 1) - lq_cmd->single_stream_ant_msk = tbl_type.ant_type; - else if (num_of_ant(tbl_type.ant_type) == 2) - lq_cmd->dual_stream_ant_msk = tbl_type.ant_type; - /* otherwise we don't modify the existing value */ - - index++; - repeat_rate--; - if (mvm) - valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); - - /* Fill rest of rate table */ - while (index < LINK_QUAL_MAX_RETRY_NUM) { - /* Repeat initial/next rate. - * For legacy IWL_NUMBER_TRY == 1, this loop will not execute. - * For HT IWL_HT_NUMBER_TRY == 3, this executes twice. */ - while (repeat_rate > 0 && (index < LINK_QUAL_MAX_RETRY_NUM)) { - if (is_legacy(tbl_type.lq_type)) { - if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) - ant_toggle_cnt++; - else if (mvm && - rs_toggle_antenna(valid_tx_ant, - &new_rate, &tbl_type)) - ant_toggle_cnt = 1; - } + num_rates = RS_INITIAL_LEGACY_NUM_RATES; + num_retries = RS_LEGACY_RETRIES_PER_RATE; + toggle_ant = true; + } - /* Override next rate if needed for debug purposes */ - rs_dbgfs_set_mcs(lq_sta, &new_rate, index); + rs_fill_rates_for_column(mvm, lq_sta, &rate, lq_cmd->rs_table, &index, + num_rates, num_retries, valid_tx_ant, + toggle_ant); - /* Fill next table entry */ - lq_cmd->rs_table[index] = - cpu_to_le32(new_rate); - repeat_rate--; - index++; - } + rs_get_lower_rate_down_column(lq_sta, &rate); - rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, &tbl_type, - &rate_idx); + if (is_siso(&rate)) { + num_rates = RS_SECONDARY_SISO_NUM_RATES; + num_retries = RS_SECONDARY_SISO_RETRIES; + lq_cmd->mimo_delim = index; + } else if (is_legacy(&rate)) { + num_rates = RS_SECONDARY_LEGACY_NUM_RATES; + num_retries = RS_LEGACY_RETRIES_PER_RATE; + } else { + WARN_ON_ONCE(1); + } + toggle_ant = true; - /* Indicate to uCode which entries might be MIMO. - * If initial rate was MIMO, this will finally end up - * as (IWL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */ - if (is_mimo(tbl_type.lq_type)) - lq_cmd->mimo_delim = index; + rs_fill_rates_for_column(mvm, lq_sta, &rate, lq_cmd->rs_table, &index, + num_rates, num_retries, valid_tx_ant, + toggle_ant); - /* Get next rate */ - new_rate = rs_get_lower_rate(lq_sta, &tbl_type, rate_idx, - use_ht_possible); + rs_get_lower_rate_down_column(lq_sta, &rate); - /* How many times should we repeat the next rate? */ - if (is_legacy(tbl_type.lq_type)) { - if (ant_toggle_cnt < NUM_TRY_BEFORE_ANT_TOGGLE) - ant_toggle_cnt++; - else if (mvm && - rs_toggle_antenna(valid_tx_ant, - &new_rate, &tbl_type)) - ant_toggle_cnt = 1; + num_rates = RS_SECONDARY_LEGACY_NUM_RATES; + num_retries = RS_LEGACY_RETRIES_PER_RATE; - repeat_rate = IWL_NUMBER_TRY; - } else { - repeat_rate = IWL_HT_NUMBER_TRY; - } + rs_fill_rates_for_column(mvm, lq_sta, &rate, lq_cmd->rs_table, &index, + num_rates, num_retries, valid_tx_ant, + toggle_ant); - /* Don't allow HT rates after next pass. - * rs_get_lower_rate() will change type to LQ_A or LQ_G. */ - use_ht_possible = 0; +} - /* Override next rate if needed for debug purposes */ - rs_dbgfs_set_mcs(lq_sta, &new_rate, index); +static void rs_fill_lq_cmd(struct iwl_mvm *mvm, + struct ieee80211_sta *sta, + struct iwl_lq_sta *lq_sta, + const struct rs_rate *initial_rate) +{ + struct iwl_lq_cmd *lq_cmd = &lq_sta->lq; + u8 ant = initial_rate->ant; - /* Fill next table entry */ - lq_cmd->rs_table[index] = cpu_to_le32(new_rate); +#ifdef CONFIG_MAC80211_DEBUGFS + if (lq_sta->dbg_fixed_rate) { + rs_build_rates_table_from_fixed(mvm, lq_cmd, + lq_sta->band, + lq_sta->dbg_fixed_rate); + lq_cmd->reduced_tpc = 0; + ant = (lq_sta->dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK) >> + RATE_MCS_ANT_POS; + } else +#endif + rs_build_rates_table(mvm, lq_sta, initial_rate); - index++; - repeat_rate--; - } + if (num_of_ant(ant) == 1) + lq_cmd->single_stream_ant_msk = ant; lq_cmd->agg_frame_cnt_limit = LINK_QUAL_AGG_FRAME_LIMIT_DEF; lq_cmd->agg_disable_start_th = LINK_QUAL_AGG_DISABLE_START_DEF; lq_cmd->agg_time_limit = cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF); + + if (sta) + lq_cmd->agg_time_limit = + cpu_to_le16(iwl_mvm_coex_agg_time_limit(mvm, sta)); } static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir) @@ -2805,31 +2857,83 @@ static void rs_free_sta(void *mvm_r, struct ieee80211_sta *sta, } #ifdef CONFIG_MAC80211_DEBUGFS -static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta, - u32 *rate_n_flags, int index) +int rs_pretty_print_rate(char *buf, const u32 rate) { - struct iwl_mvm *mvm; - u8 valid_tx_ant; - u8 ant_sel_tx; - mvm = lq_sta->drv; - valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw); - if (lq_sta->dbg_fixed_rate) { - ant_sel_tx = - ((lq_sta->dbg_fixed_rate & RATE_MCS_ANT_ABC_MSK) - >> RATE_MCS_ANT_POS); - if ((valid_tx_ant & ant_sel_tx) == ant_sel_tx) { - *rate_n_flags = lq_sta->dbg_fixed_rate; - IWL_DEBUG_RATE(mvm, "Fixed rate ON\n"); - } else { - lq_sta->dbg_fixed_rate = 0; - IWL_ERR(mvm, - "Invalid antenna selection 0x%X, Valid is 0x%X\n", - ant_sel_tx, valid_tx_ant); - IWL_DEBUG_RATE(mvm, "Fixed rate OFF\n"); - } + char *type, *bw; + u8 mcs = 0, nss = 0; + u8 ant = (rate & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS; + + if (!(rate & RATE_MCS_HT_MSK) && + !(rate & RATE_MCS_VHT_MSK)) { + int index = iwl_hwrate_to_plcp_idx(rate); + + return sprintf(buf, "Legacy | ANT: %s Rate: %s Mbps\n", + rs_pretty_ant(ant), + index == IWL_RATE_INVALID ? "BAD" : + iwl_rate_mcs[index].mbps); + } + + if (rate & RATE_MCS_VHT_MSK) { + type = "VHT"; + mcs = rate & RATE_VHT_MCS_RATE_CODE_MSK; + nss = ((rate & RATE_VHT_MCS_NSS_MSK) + >> RATE_VHT_MCS_NSS_POS) + 1; + } else if (rate & RATE_MCS_HT_MSK) { + type = "HT"; + mcs = rate & RATE_HT_MCS_INDEX_MSK; } else { - IWL_DEBUG_RATE(mvm, "Fixed rate OFF\n"); + type = "Unknown"; /* shouldn't happen */ + } + + switch (rate & RATE_MCS_CHAN_WIDTH_MSK) { + case RATE_MCS_CHAN_WIDTH_20: + bw = "20Mhz"; + break; + case RATE_MCS_CHAN_WIDTH_40: + bw = "40Mhz"; + break; + case RATE_MCS_CHAN_WIDTH_80: + bw = "80Mhz"; + break; + case RATE_MCS_CHAN_WIDTH_160: + bw = "160Mhz"; + break; + default: + bw = "BAD BW"; + } + + return sprintf(buf, "%s | ANT: %s BW: %s MCS: %d NSS: %d %s%s%s%s%s\n", + type, rs_pretty_ant(ant), bw, mcs, nss, + (rate & RATE_MCS_SGI_MSK) ? "SGI " : "NGI ", + (rate & RATE_MCS_HT_STBC_MSK) ? "STBC " : "", + (rate & RATE_MCS_LDPC_MSK) ? "LDPC " : "", + (rate & RATE_MCS_BF_MSK) ? "BF " : "", + (rate & RATE_MCS_ZLF_MSK) ? "ZLF " : ""); +} + +/** + * Program the device to use fixed rate for frame transmit + * This is for debugging/testing only + * once the device start use fixed rate, we need to reload the module + * to being back the normal operation. + */ +static void rs_program_fix_rate(struct iwl_mvm *mvm, + struct iwl_lq_sta *lq_sta) +{ + lq_sta->active_legacy_rate = 0x0FFF; /* 1 - 54 MBits, includes CCK */ + lq_sta->active_siso_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ + lq_sta->active_mimo2_rate = 0x1FD0; /* 6 - 60 MBits, no 9, no CCK */ + + IWL_DEBUG_RATE(mvm, "sta_id %d rate 0x%X\n", + lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate); + + if (lq_sta->dbg_fixed_rate) { + struct rs_rate rate; + rs_rate_from_ucode_rate(lq_sta->dbg_fixed_rate, + lq_sta->band, &rate); + rs_fill_lq_cmd(mvm, NULL, lq_sta, &rate); + iwl_mvm_send_lq_cmd(lq_sta->drv, &lq_sta->lq, false); } } @@ -2842,7 +2946,6 @@ static ssize_t rs_sta_dbgfs_scale_table_write(struct file *file, size_t buf_size; u32 parsed_rate; - mvm = lq_sta->drv; memset(buf, 0, sizeof(buf)); buf_size = min(count, sizeof(buf) - 1); @@ -2865,45 +2968,45 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, char *buff; int desc = 0; int i = 0; - int index = 0; ssize_t ret; struct iwl_lq_sta *lq_sta = file->private_data; struct iwl_mvm *mvm; struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]); - + struct rs_rate *rate = &tbl->rate; mvm = lq_sta->drv; - buff = kmalloc(1024, GFP_KERNEL); + buff = kmalloc(2048, GFP_KERNEL); if (!buff) return -ENOMEM; desc += sprintf(buff+desc, "sta_id %d\n", lq_sta->lq.sta_id); - desc += sprintf(buff+desc, "failed=%d success=%d rate=0%X\n", + desc += sprintf(buff+desc, "failed=%d success=%d rate=0%lX\n", lq_sta->total_failed, lq_sta->total_success, lq_sta->active_legacy_rate); desc += sprintf(buff+desc, "fixed rate 0x%X\n", lq_sta->dbg_fixed_rate); desc += sprintf(buff+desc, "valid_tx_ant %s%s%s\n", - (iwl_fw_valid_tx_ant(mvm->fw) & ANT_A) ? "ANT_A," : "", - (iwl_fw_valid_tx_ant(mvm->fw) & ANT_B) ? "ANT_B," : "", - (iwl_fw_valid_tx_ant(mvm->fw) & ANT_C) ? "ANT_C" : ""); + (mvm->fw->valid_tx_ant & ANT_A) ? "ANT_A," : "", + (mvm->fw->valid_tx_ant & ANT_B) ? "ANT_B," : "", + (mvm->fw->valid_tx_ant & ANT_C) ? "ANT_C" : ""); desc += sprintf(buff+desc, "lq type %s\n", - (is_legacy(tbl->lq_type)) ? "legacy" : "HT"); - if (is_Ht(tbl->lq_type)) { + (is_legacy(rate)) ? "legacy" : + is_vht(rate) ? "VHT" : "HT"); + if (!is_legacy(rate)) { desc += sprintf(buff+desc, " %s", - (is_siso(tbl->lq_type)) ? "SISO" : - ((is_mimo2(tbl->lq_type)) ? "MIMO2" : "MIMO3")); + (is_siso(rate)) ? "SISO" : "MIMO2"); desc += sprintf(buff+desc, " %s", - (tbl->is_ht40) ? "40MHz" : "20MHz"); - desc += sprintf(buff+desc, " %s %s %s\n", - (tbl->is_SGI) ? "SGI" : "", - (lq_sta->is_green) ? "GF enabled" : "", - (lq_sta->is_agg) ? "AGG on" : ""); + (is_ht20(rate)) ? "20MHz" : + (is_ht40(rate)) ? "40MHz" : + (is_ht80(rate)) ? "80Mhz" : "BAD BW"); + desc += sprintf(buff+desc, " %s %s\n", + (rate->sgi) ? "SGI" : "NGI", + (lq_sta->is_agg) ? "AGG on" : ""); } desc += sprintf(buff+desc, "last tx rate=0x%X\n", lq_sta->last_rate_n_flags); desc += sprintf(buff+desc, - "general: flags=0x%X mimo-d=%d s-ant0x%x d-ant=0x%x\n", + "general: flags=0x%X mimo-d=%d s-ant=0x%x d-ant=0x%x\n", lq_sta->lq.flags, lq_sta->lq.mimo_delim, lq_sta->lq.single_stream_ant_msk, @@ -2915,6 +3018,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, lq_sta->lq.agg_disable_start_th, lq_sta->lq.agg_frame_cnt_limit); + desc += sprintf(buff+desc, "reduced tpc=%d\n", lq_sta->lq.reduced_tpc); desc += sprintf(buff+desc, "Start idx [0]=0x%x [1]=0x%x [2]=0x%x [3]=0x%x\n", lq_sta->lq.initial_rate_index[0], @@ -2923,19 +3027,10 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file, lq_sta->lq.initial_rate_index[3]); for (i = 0; i < LINK_QUAL_MAX_RETRY_NUM; i++) { - index = iwl_hwrate_to_plcp_idx( - le32_to_cpu(lq_sta->lq.rs_table[i])); - if (is_legacy(tbl->lq_type)) { - desc += sprintf(buff+desc, " rate[%d] 0x%X %smbps\n", - i, le32_to_cpu(lq_sta->lq.rs_table[i]), - iwl_rate_mcs[index].mbps); - } else { - desc += sprintf(buff+desc, - " rate[%d] 0x%X %smbps (%s)\n", - i, le32_to_cpu(lq_sta->lq.rs_table[i]), - iwl_rate_mcs[index].mbps, - iwl_rate_mcs[index].mcs); - } + u32 r = le32_to_cpu(lq_sta->lq.rs_table[i]); + + desc += sprintf(buff+desc, " rate[%d] 0x%X ", i, r); + desc += rs_pretty_print_rate(buff+desc, r); } ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); @@ -2956,7 +3051,8 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, int desc = 0; int i, j; ssize_t ret; - + struct iwl_scale_tbl_info *tbl; + struct rs_rate *rate; struct iwl_lq_sta *lq_sta = file->private_data; buff = kmalloc(1024, GFP_KERNEL); @@ -2964,21 +3060,24 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file, return -ENOMEM; for (i = 0; i < LQ_SIZE; i++) { + tbl = &(lq_sta->lq_info[i]); + rate = &tbl->rate; desc += sprintf(buff+desc, - "%s type=%d SGI=%d HT40=%d DUP=0 GF=%d\n" - "rate=0x%X\n", + "%s type=%d SGI=%d BW=%s DUP=0\n" + "index=%d\n", lq_sta->active_tbl == i ? "*" : "x", - lq_sta->lq_info[i].lq_type, - lq_sta->lq_info[i].is_SGI, - lq_sta->lq_info[i].is_ht40, - lq_sta->is_green, - lq_sta->lq_info[i].current_rate); + rate->type, + rate->sgi, + is_ht20(rate) ? "20Mhz" : + is_ht40(rate) ? "40Mhz" : + is_ht80(rate) ? "80Mhz" : "ERR", + rate->index); for (j = 0; j < IWL_RATE_COUNT; j++) { desc += sprintf(buff+desc, "counter=%d success=%d %%=%d\n", - lq_sta->lq_info[i].win[j].counter, - lq_sta->lq_info[i].win[j].success_counter, - lq_sta->lq_info[i].win[j].success_ratio); + tbl->win[j].counter, + tbl->win[j].success_counter, + tbl->win[j].success_ratio); } } ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc); @@ -2992,28 +3091,90 @@ static const struct file_operations rs_sta_dbgfs_stats_table_ops = { .llseek = default_llseek, }; -static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file, - char __user *user_buf, size_t count, loff_t *ppos) +static ssize_t rs_sta_dbgfs_drv_tx_stats_read(struct file *file, + char __user *user_buf, + size_t count, loff_t *ppos) { + static const char * const column_name[] = { + [RS_COLUMN_LEGACY_ANT_A] = "LEGACY_ANT_A", + [RS_COLUMN_LEGACY_ANT_B] = "LEGACY_ANT_B", + [RS_COLUMN_SISO_ANT_A] = "SISO_ANT_A", + [RS_COLUMN_SISO_ANT_B] = "SISO_ANT_B", + [RS_COLUMN_SISO_ANT_A_SGI] = "SISO_ANT_A_SGI", + [RS_COLUMN_SISO_ANT_B_SGI] = "SISO_ANT_B_SGI", + [RS_COLUMN_MIMO2] = "MIMO2", + [RS_COLUMN_MIMO2_SGI] = "MIMO2_SGI", + }; + + static const char * const rate_name[] = { + [IWL_RATE_1M_INDEX] = "1M", + [IWL_RATE_2M_INDEX] = "2M", + [IWL_RATE_5M_INDEX] = "5.5M", + [IWL_RATE_11M_INDEX] = "11M", + [IWL_RATE_6M_INDEX] = "6M|MCS0", + [IWL_RATE_9M_INDEX] = "9M", + [IWL_RATE_12M_INDEX] = "12M|MCS1", + [IWL_RATE_18M_INDEX] = "18M|MCS2", + [IWL_RATE_24M_INDEX] = "24M|MCS3", + [IWL_RATE_36M_INDEX] = "36M|MCS4", + [IWL_RATE_48M_INDEX] = "48M|MCS5", + [IWL_RATE_54M_INDEX] = "54M|MCS6", + [IWL_RATE_MCS_7_INDEX] = "MCS7", + [IWL_RATE_MCS_8_INDEX] = "MCS8", + [IWL_RATE_MCS_9_INDEX] = "MCS9", + }; + + char *buff, *pos, *endpos; + int col, rate; + ssize_t ret; struct iwl_lq_sta *lq_sta = file->private_data; - struct iwl_scale_tbl_info *tbl = &lq_sta->lq_info[lq_sta->active_tbl]; - char buff[120]; - int desc = 0; + struct rs_rate_stats *stats; + static const size_t bufsz = 1024; - if (is_Ht(tbl->lq_type)) - desc += sprintf(buff+desc, - "Bit Rate= %d Mb/s\n", - tbl->expected_tpt[lq_sta->last_txrate_idx]); - else - desc += sprintf(buff+desc, - "Bit Rate= %d Mb/s\n", - iwl_rates[lq_sta->last_txrate_idx].ieee >> 1); + buff = kmalloc(bufsz, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + pos = buff; + endpos = pos + bufsz; + + pos += scnprintf(pos, endpos - pos, "COLUMN,"); + for (rate = 0; rate < IWL_RATE_COUNT; rate++) + pos += scnprintf(pos, endpos - pos, "%s,", rate_name[rate]); + pos += scnprintf(pos, endpos - pos, "\n"); + + for (col = 0; col < RS_COLUMN_COUNT; col++) { + pos += scnprintf(pos, endpos - pos, + "%s,", column_name[col]); + + for (rate = 0; rate < IWL_RATE_COUNT; rate++) { + stats = &(lq_sta->tx_stats[col][rate]); + pos += scnprintf(pos, endpos - pos, + "%llu/%llu,", + stats->success, + stats->total); + } + pos += scnprintf(pos, endpos - pos, "\n"); + } + + ret = simple_read_from_buffer(user_buf, count, ppos, buff, pos - buff); + kfree(buff); + return ret; +} + +static ssize_t rs_sta_dbgfs_drv_tx_stats_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + struct iwl_lq_sta *lq_sta = file->private_data; + memset(lq_sta->tx_stats, 0, sizeof(lq_sta->tx_stats)); - return simple_read_from_buffer(user_buf, count, ppos, buff, desc); + return count; } -static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = { - .read = rs_sta_dbgfs_rate_scale_data_read, +static const struct file_operations rs_sta_dbgfs_drv_tx_stats_ops = { + .read = rs_sta_dbgfs_drv_tx_stats_read, + .write = rs_sta_dbgfs_drv_tx_stats_write, .open = simple_open, .llseek = default_llseek, }; @@ -3027,12 +3188,15 @@ static void rs_add_debugfs(void *mvm, void *mvm_sta, struct dentry *dir) lq_sta->rs_sta_dbgfs_stats_table_file = debugfs_create_file("rate_stats_table", S_IRUSR, dir, lq_sta, &rs_sta_dbgfs_stats_table_ops); - lq_sta->rs_sta_dbgfs_rate_scale_data_file = - debugfs_create_file("rate_scale_data", S_IRUSR, dir, - lq_sta, &rs_sta_dbgfs_rate_scale_data_ops); + lq_sta->rs_sta_dbgfs_drv_tx_stats_file = + debugfs_create_file("drv_tx_stats", S_IRUSR | S_IWUSR, dir, + lq_sta, &rs_sta_dbgfs_drv_tx_stats_ops); lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file = debugfs_create_u8("tx_agg_tid_enable", S_IRUSR | S_IWUSR, dir, &lq_sta->tx_agg_tid_en); + lq_sta->rs_sta_dbgfs_reduced_txp_file = + debugfs_create_u8("reduced_tpc", S_IRUSR | S_IWUSR, dir, + &lq_sta->dbg_fixed_txp_reduction); } static void rs_remove_debugfs(void *mvm, void *mvm_sta) @@ -3040,8 +3204,9 @@ static void rs_remove_debugfs(void *mvm, void *mvm_sta) struct iwl_lq_sta *lq_sta = mvm_sta; debugfs_remove(lq_sta->rs_sta_dbgfs_scale_table_file); debugfs_remove(lq_sta->rs_sta_dbgfs_stats_table_file); - debugfs_remove(lq_sta->rs_sta_dbgfs_rate_scale_data_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_drv_tx_stats_file); debugfs_remove(lq_sta->rs_sta_dbgfs_tx_agg_tid_en_file); + debugfs_remove(lq_sta->rs_sta_dbgfs_reduced_txp_file); } #endif @@ -3051,12 +3216,13 @@ static void rs_remove_debugfs(void *mvm, void *mvm_sta) * station is added we ignore it. */ static void rs_rate_init_stub(void *mvm_r, - struct ieee80211_supported_band *sband, - struct ieee80211_sta *sta, void *mvm_sta) + struct ieee80211_supported_band *sband, + struct cfg80211_chan_def *chandef, + struct ieee80211_sta *sta, void *mvm_sta) { } -static struct rate_control_ops rs_mvm_ops = { - .module = NULL, + +static const struct rate_control_ops rs_mvm_ops = { .name = RS_NAME, .tx_status = rs_tx_status, .get_rate = rs_get_rate, @@ -3065,6 +3231,7 @@ static struct rate_control_ops rs_mvm_ops = { .free = rs_free, .alloc_sta = rs_alloc_sta, .free_sta = rs_free_sta, + .rate_update = rs_rate_update, #ifdef CONFIG_MAC80211_DEBUGFS .add_sta_debugfs = rs_add_debugfs, .remove_sta_debugfs = rs_remove_debugfs, @@ -3080,3 +3247,30 @@ void iwl_mvm_rate_control_unregister(void) { ieee80211_rate_control_unregister(&rs_mvm_ops); } + +/** + * iwl_mvm_tx_protection - Gets LQ command, change it to enable/disable + * Tx protection, according to this rquest and previous requests, + * and send the LQ command. + * @mvmsta: The station + * @enable: Enable Tx protection? + */ +int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, + bool enable) +{ + struct iwl_lq_cmd *lq = &mvmsta->lq_sta.lq; + + lockdep_assert_held(&mvm->mutex); + + if (enable) { + if (mvmsta->tx_protection == 0) + lq->flags |= LQ_FLAG_USE_RTS_MSK; + mvmsta->tx_protection++; + } else { + mvmsta->tx_protection--; + if (mvmsta->tx_protection == 0) + lq->flags &= ~LQ_FLAG_USE_RTS_MSK; + } + + return iwl_mvm_send_lq_cmd(mvm, lq, false); +} diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h index 219c6857cc0..374a83d7db2 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.h +++ b/drivers/net/wireless/iwlwifi/mvm/rs.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as @@ -35,17 +35,13 @@ #include "iwl-trans.h" struct iwl_rs_rate_info { - u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ - u8 plcp_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ - u8 plcp_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ - u8 plcp_mimo3; /* uCode API: IWL_RATE_MIMO3_6M_PLCP, etc. */ - u8 ieee; /* MAC header: IWL_RATE_6M_IEEE, etc. */ - u8 prev_ieee; /* previous rate in IEEE speeds */ - u8 next_ieee; /* next rate in IEEE speeds */ + u8 plcp; /* uCode API: IWL_RATE_6M_PLCP, etc. */ + u8 plcp_ht_siso; /* uCode API: IWL_RATE_SISO_6M_PLCP, etc. */ + u8 plcp_ht_mimo2; /* uCode API: IWL_RATE_MIMO2_6M_PLCP, etc. */ + u8 plcp_vht_siso; + u8 plcp_vht_mimo2; u8 prev_rs; /* previous rate used in rs algo */ u8 next_rs; /* next rate used in rs algo */ - u8 prev_rs_tgg; /* previous rate used in TGG rs algo */ - u8 next_rs_tgg; /* next rate used in TGG rs algo */ }; #define IWL_RATE_60M_PLCP 3 @@ -89,52 +85,52 @@ enum { #define IWL_RATE_11M_MASK (1 << IWL_RATE_11M_INDEX) -/* uCode API values for OFDM high-throughput (HT) bit rates */ +/* uCode API values for HT/VHT bit rates */ enum { - IWL_RATE_SISO_6M_PLCP = 0, - IWL_RATE_SISO_12M_PLCP = 1, - IWL_RATE_SISO_18M_PLCP = 2, - IWL_RATE_SISO_24M_PLCP = 3, - IWL_RATE_SISO_36M_PLCP = 4, - IWL_RATE_SISO_48M_PLCP = 5, - IWL_RATE_SISO_54M_PLCP = 6, - IWL_RATE_SISO_60M_PLCP = 7, - IWL_RATE_MIMO2_6M_PLCP = 0x8, - IWL_RATE_MIMO2_12M_PLCP = 0x9, - IWL_RATE_MIMO2_18M_PLCP = 0xa, - IWL_RATE_MIMO2_24M_PLCP = 0xb, - IWL_RATE_MIMO2_36M_PLCP = 0xc, - IWL_RATE_MIMO2_48M_PLCP = 0xd, - IWL_RATE_MIMO2_54M_PLCP = 0xe, - IWL_RATE_MIMO2_60M_PLCP = 0xf, - IWL_RATE_MIMO3_6M_PLCP = 0x10, - IWL_RATE_MIMO3_12M_PLCP = 0x11, - IWL_RATE_MIMO3_18M_PLCP = 0x12, - IWL_RATE_MIMO3_24M_PLCP = 0x13, - IWL_RATE_MIMO3_36M_PLCP = 0x14, - IWL_RATE_MIMO3_48M_PLCP = 0x15, - IWL_RATE_MIMO3_54M_PLCP = 0x16, - IWL_RATE_MIMO3_60M_PLCP = 0x17, - IWL_RATE_SISO_INVM_PLCP, - IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, - IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP, -}; - -/* MAC header values for bit rates */ -enum { - IWL_RATE_6M_IEEE = 12, - IWL_RATE_9M_IEEE = 18, - IWL_RATE_12M_IEEE = 24, - IWL_RATE_18M_IEEE = 36, - IWL_RATE_24M_IEEE = 48, - IWL_RATE_36M_IEEE = 72, - IWL_RATE_48M_IEEE = 96, - IWL_RATE_54M_IEEE = 108, - IWL_RATE_60M_IEEE = 120, - IWL_RATE_1M_IEEE = 2, - IWL_RATE_2M_IEEE = 4, - IWL_RATE_5M_IEEE = 11, - IWL_RATE_11M_IEEE = 22, + IWL_RATE_HT_SISO_MCS_0_PLCP = 0, + IWL_RATE_HT_SISO_MCS_1_PLCP = 1, + IWL_RATE_HT_SISO_MCS_2_PLCP = 2, + IWL_RATE_HT_SISO_MCS_3_PLCP = 3, + IWL_RATE_HT_SISO_MCS_4_PLCP = 4, + IWL_RATE_HT_SISO_MCS_5_PLCP = 5, + IWL_RATE_HT_SISO_MCS_6_PLCP = 6, + IWL_RATE_HT_SISO_MCS_7_PLCP = 7, + IWL_RATE_HT_MIMO2_MCS_0_PLCP = 0x8, + IWL_RATE_HT_MIMO2_MCS_1_PLCP = 0x9, + IWL_RATE_HT_MIMO2_MCS_2_PLCP = 0xA, + IWL_RATE_HT_MIMO2_MCS_3_PLCP = 0xB, + IWL_RATE_HT_MIMO2_MCS_4_PLCP = 0xC, + IWL_RATE_HT_MIMO2_MCS_5_PLCP = 0xD, + IWL_RATE_HT_MIMO2_MCS_6_PLCP = 0xE, + IWL_RATE_HT_MIMO2_MCS_7_PLCP = 0xF, + IWL_RATE_VHT_SISO_MCS_0_PLCP = 0, + IWL_RATE_VHT_SISO_MCS_1_PLCP = 1, + IWL_RATE_VHT_SISO_MCS_2_PLCP = 2, + IWL_RATE_VHT_SISO_MCS_3_PLCP = 3, + IWL_RATE_VHT_SISO_MCS_4_PLCP = 4, + IWL_RATE_VHT_SISO_MCS_5_PLCP = 5, + IWL_RATE_VHT_SISO_MCS_6_PLCP = 6, + IWL_RATE_VHT_SISO_MCS_7_PLCP = 7, + IWL_RATE_VHT_SISO_MCS_8_PLCP = 8, + IWL_RATE_VHT_SISO_MCS_9_PLCP = 9, + IWL_RATE_VHT_MIMO2_MCS_0_PLCP = 0x10, + IWL_RATE_VHT_MIMO2_MCS_1_PLCP = 0x11, + IWL_RATE_VHT_MIMO2_MCS_2_PLCP = 0x12, + IWL_RATE_VHT_MIMO2_MCS_3_PLCP = 0x13, + IWL_RATE_VHT_MIMO2_MCS_4_PLCP = 0x14, + IWL_RATE_VHT_MIMO2_MCS_5_PLCP = 0x15, + IWL_RATE_VHT_MIMO2_MCS_6_PLCP = 0x16, + IWL_RATE_VHT_MIMO2_MCS_7_PLCP = 0x17, + IWL_RATE_VHT_MIMO2_MCS_8_PLCP = 0x18, + IWL_RATE_VHT_MIMO2_MCS_9_PLCP = 0x19, + IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_HT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_VHT_SISO_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_VHT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_HT_SISO_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_HT_SISO_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_HT_MIMO2_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, + IWL_RATE_HT_MIMO2_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP, }; #define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1) @@ -159,55 +155,15 @@ enum { #define IWL_RATE_SCALE_SWITCH 10880 /* 85% */ #define IWL_RATE_HIGH_TH 10880 /* 85% */ #define IWL_RATE_INCREASE_TH 6400 /* 50% */ -#define IWL_RATE_DECREASE_TH 1920 /* 15% */ - -/* possible actions when in legacy mode */ -#define IWL_LEGACY_SWITCH_ANTENNA1 0 -#define IWL_LEGACY_SWITCH_ANTENNA2 1 -#define IWL_LEGACY_SWITCH_SISO 2 -#define IWL_LEGACY_SWITCH_MIMO2_AB 3 -#define IWL_LEGACY_SWITCH_MIMO2_AC 4 -#define IWL_LEGACY_SWITCH_MIMO2_BC 5 -#define IWL_LEGACY_SWITCH_MIMO3_ABC 6 - -/* possible actions when in siso mode */ -#define IWL_SISO_SWITCH_ANTENNA1 0 -#define IWL_SISO_SWITCH_ANTENNA2 1 -#define IWL_SISO_SWITCH_MIMO2_AB 2 -#define IWL_SISO_SWITCH_MIMO2_AC 3 -#define IWL_SISO_SWITCH_MIMO2_BC 4 -#define IWL_SISO_SWITCH_GI 5 -#define IWL_SISO_SWITCH_MIMO3_ABC 6 - - -/* possible actions when in mimo mode */ -#define IWL_MIMO2_SWITCH_ANTENNA1 0 -#define IWL_MIMO2_SWITCH_ANTENNA2 1 -#define IWL_MIMO2_SWITCH_SISO_A 2 -#define IWL_MIMO2_SWITCH_SISO_B 3 -#define IWL_MIMO2_SWITCH_SISO_C 4 -#define IWL_MIMO2_SWITCH_GI 5 -#define IWL_MIMO2_SWITCH_MIMO3_ABC 6 - - -/* possible actions when in mimo3 mode */ -#define IWL_MIMO3_SWITCH_ANTENNA1 0 -#define IWL_MIMO3_SWITCH_ANTENNA2 1 -#define IWL_MIMO3_SWITCH_SISO_A 2 -#define IWL_MIMO3_SWITCH_SISO_B 3 -#define IWL_MIMO3_SWITCH_SISO_C 4 -#define IWL_MIMO3_SWITCH_MIMO2_AB 5 -#define IWL_MIMO3_SWITCH_MIMO2_AC 6 -#define IWL_MIMO3_SWITCH_MIMO2_BC 7 -#define IWL_MIMO3_SWITCH_GI 8 - - -#define IWL_MAX_11N_MIMO3_SEARCH IWL_MIMO3_SWITCH_GI -#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_MIMO3_ABC - -/*FIXME:RS:add possible actions for MIMO3*/ - -#define IWL_ACTION_LIMIT 3 /* # possible actions */ +#define RS_SR_FORCE_DECREASE 1920 /* 15% */ +#define RS_SR_NO_DECREASE 10880 /* 85% */ + +#define TPC_SR_FORCE_INCREASE 9600 /* 75% */ +#define TPC_SR_NO_INCREASE 10880 /* 85% */ +#define TPC_TX_POWER_STEP 3 +#define TPC_MAX_REDUCTION 15 +#define TPC_NO_REDUCTION 0 +#define TPC_INVALID 0xff #define LINK_QUAL_AGG_TIME_LIMIT_DEF (4000) /* 4 milliseconds */ #define LINK_QUAL_AGG_TIME_LIMIT_MAX (8000) @@ -236,22 +192,54 @@ enum { enum iwl_table_type { LQ_NONE, - LQ_G, /* legacy types */ - LQ_A, - LQ_SISO, /* high-throughput types */ - LQ_MIMO2, - LQ_MIMO3, + LQ_LEGACY_G, /* legacy types */ + LQ_LEGACY_A, + LQ_HT_SISO, /* HT types */ + LQ_HT_MIMO2, + LQ_VHT_SISO, /* VHT types */ + LQ_VHT_MIMO2, LQ_MAX, }; -#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A)) -#define is_siso(tbl) ((tbl) == LQ_SISO) -#define is_mimo2(tbl) ((tbl) == LQ_MIMO2) -#define is_mimo3(tbl) ((tbl) == LQ_MIMO3) -#define is_mimo(tbl) (is_mimo2(tbl) || is_mimo3(tbl)) -#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl)) -#define is_a_band(tbl) ((tbl) == LQ_A) -#define is_g_and(tbl) ((tbl) == LQ_G) +struct rs_rate { + int index; + enum iwl_table_type type; + u8 ant; + u32 bw; + bool sgi; +}; + + +#define is_type_legacy(type) (((type) == LQ_LEGACY_G) || \ + ((type) == LQ_LEGACY_A)) +#define is_type_ht_siso(type) ((type) == LQ_HT_SISO) +#define is_type_ht_mimo2(type) ((type) == LQ_HT_MIMO2) +#define is_type_vht_siso(type) ((type) == LQ_VHT_SISO) +#define is_type_vht_mimo2(type) ((type) == LQ_VHT_MIMO2) +#define is_type_siso(type) (is_type_ht_siso(type) || is_type_vht_siso(type)) +#define is_type_mimo2(type) (is_type_ht_mimo2(type) || is_type_vht_mimo2(type)) +#define is_type_mimo(type) (is_type_mimo2(type)) +#define is_type_ht(type) (is_type_ht_siso(type) || is_type_ht_mimo2(type)) +#define is_type_vht(type) (is_type_vht_siso(type) || is_type_vht_mimo2(type)) +#define is_type_a_band(type) ((type) == LQ_LEGACY_A) +#define is_type_g_band(type) ((type) == LQ_LEGACY_G) + +#define is_legacy(rate) is_type_legacy((rate)->type) +#define is_ht_siso(rate) is_type_ht_siso((rate)->type) +#define is_ht_mimo2(rate) is_type_ht_mimo2((rate)->type) +#define is_vht_siso(rate) is_type_vht_siso((rate)->type) +#define is_vht_mimo2(rate) is_type_vht_mimo2((rate)->type) +#define is_siso(rate) is_type_siso((rate)->type) +#define is_mimo2(rate) is_type_mimo2((rate)->type) +#define is_mimo(rate) is_type_mimo((rate)->type) +#define is_ht(rate) is_type_ht((rate)->type) +#define is_vht(rate) is_type_vht((rate)->type) +#define is_a_band(rate) is_type_a_band((rate)->type) +#define is_g_band(rate) is_type_g_band((rate)->type) + +#define is_ht20(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_20) +#define is_ht40(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_40) +#define is_ht80(rate) ((rate)->bw == RATE_MCS_CHAN_WIDTH_80) #define IWL_MAX_MCS_DISPLAY_SIZE 12 @@ -269,7 +257,30 @@ struct iwl_rate_scale_data { s32 success_ratio; /* per-cent * 128 */ s32 counter; /* number of frames attempted */ s32 average_tpt; /* success ratio * expected throughput */ - unsigned long stamp; +}; + +/* Possible Tx columns + * Tx Column = a combo of legacy/siso/mimo x antenna x SGI + */ +enum rs_column { + RS_COLUMN_LEGACY_ANT_A = 0, + RS_COLUMN_LEGACY_ANT_B, + RS_COLUMN_SISO_ANT_A, + RS_COLUMN_SISO_ANT_B, + RS_COLUMN_SISO_ANT_A_SGI, + RS_COLUMN_SISO_ANT_B_SGI, + RS_COLUMN_MIMO2, + RS_COLUMN_MIMO2_SGI, + + RS_COLUMN_LAST = RS_COLUMN_MIMO2_SGI, + RS_COLUMN_COUNT = RS_COLUMN_LAST + 1, + RS_COLUMN_INVALID, +}; + +/* Packet stats per rate */ +struct rs_rate_stats { + u64 success; + u64 total; }; /** @@ -279,26 +290,18 @@ struct iwl_rate_scale_data { * one for "active", and one for "search". */ struct iwl_scale_tbl_info { - enum iwl_table_type lq_type; - u8 ant_type; - u8 is_SGI; /* 1 = short guard interval */ - u8 is_ht40; /* 1 = 40 MHz channel width */ - u8 action; /* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */ - u8 max_search; /* maximun number of tables we can search */ - s32 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ - u32 current_rate; /* rate_n_flags, uCode API format */ + struct rs_rate rate; + enum rs_column column; + const u16 *expected_tpt; /* throughput metrics; expected_tpt_G, etc. */ struct iwl_rate_scale_data win[IWL_RATE_COUNT]; /* rate histories */ + /* per txpower-reduction history */ + struct iwl_rate_scale_data tpc_win[TPC_MAX_REDUCTION + 1]; }; -struct iwl_traffic_load { - unsigned long time_stamp; /* age of the oldest statistics */ - u32 packet_count[TID_QUEUE_MAX_SIZE]; /* packet count in this time - * slice */ - u32 total; /* total num of packets during the - * last TID_MAX_TIME_DIFF */ - u8 queue_count; /* number of queues that has - * been used since the last cleanup */ - u8 head; /* start of the circular buffer */ +enum { + RS_STATE_SEARCH_CYCLE_STARTED, + RS_STATE_SEARCH_CYCLE_ENDED, + RS_STATE_STAY_IN_COLUMN, }; /** @@ -308,8 +311,7 @@ struct iwl_traffic_load { */ struct iwl_lq_sta { u8 active_tbl; /* index of active table, range 0-1 */ - u8 enable_counter; /* indicates HT mode */ - u8 stay_in_tbl; /* 1: disallow, 0: allow search for new mode */ + u8 rs_state; /* RS_STATE_* */ u8 search_better_tbl; /* 1: currently trying alternate mode */ s32 last_tpt; @@ -322,29 +324,39 @@ struct iwl_lq_sta { u32 total_success; /* total successful frames, any/all rates */ u64 flush_timer; /* time staying in mode before new search */ - u8 action_counter; /* # mode-switch actions tried */ - u8 is_green; + u32 visited_columns; /* Bitmask marking which Tx columns were + * explored during a search cycle + */ + u64 last_tx; + bool is_vht; enum ieee80211_band band; + struct rs_rate_stats tx_stats[RS_COLUMN_COUNT][IWL_RATE_COUNT]; + /* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */ - u32 supp_rates; - u16 active_legacy_rate; - u16 active_siso_rate; - u16 active_mimo2_rate; - u16 active_mimo3_rate; + unsigned long active_legacy_rate; + unsigned long active_siso_rate; + unsigned long active_mimo2_rate; + + /* Highest rate per Tx mode */ + u8 max_legacy_rate_idx; + u8 max_siso_rate_idx; + u8 max_mimo2_rate_idx; + s8 max_rate_idx; /* Max rate set by user */ u8 missed_rate_counter; struct iwl_lq_cmd lq; struct iwl_scale_tbl_info lq_info[LQ_SIZE]; /* "active", "search" */ - struct iwl_traffic_load load[IWL_MAX_TID_COUNT]; u8 tx_agg_tid_en; #ifdef CONFIG_MAC80211_DEBUGFS struct dentry *rs_sta_dbgfs_scale_table_file; struct dentry *rs_sta_dbgfs_stats_table_file; - struct dentry *rs_sta_dbgfs_rate_scale_data_file; + struct dentry *rs_sta_dbgfs_drv_tx_stats_file; struct dentry *rs_sta_dbgfs_tx_agg_tid_en_file; + struct dentry *rs_sta_dbgfs_reduced_txp_file; u32 dbg_fixed_rate; + u8 dbg_fixed_txp_reduction; #endif struct iwl_mvm *drv; @@ -354,21 +366,14 @@ struct iwl_lq_sta { u32 last_rate_n_flags; /* packets destined for this STA are aggregated */ u8 is_agg; - /* BT traffic this sta was last updated in */ - u8 last_bt_traffic; -}; -static inline u8 num_of_ant(u8 mask) -{ - return !!((mask) & ANT_A) + - !!((mask) & ANT_B) + - !!((mask) & ANT_C); -} + /* tx power reduce for this sta */ + int tpc_reduce; +}; /* Initialize station's rate scaling information after adding station */ -extern void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, - struct ieee80211_sta *sta, - enum ieee80211_band band); +void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta, + enum ieee80211_band band, bool init); /** * iwl_rate_control_register - Register the rate control algorithm callbacks @@ -380,7 +385,7 @@ extern void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, * ieee80211_register_hw * */ -extern int iwl_mvm_rate_control_register(void); +int iwl_mvm_rate_control_register(void); /** * iwl_rate_control_unregister - Unregister the rate control callbacks @@ -388,6 +393,11 @@ extern int iwl_mvm_rate_control_register(void); * This should be called after calling ieee80211_unregister_hw, but before * the driver is unloaded. */ -extern void iwl_mvm_rate_control_unregister(void); +void iwl_mvm_rate_control_unregister(void); + +struct iwl_mvm_sta; + +int iwl_mvm_tx_protection(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, + bool enable); #endif /* __rs__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c index 4dfc21a3e83..cf7276967ac 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rx.c +++ b/drivers/net/wireless/iwlwifi/mvm/rx.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -60,7 +60,6 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *****************************************************************************/ #include "iwl-trans.h" - #include "mvm.h" #include "fw-api.h" @@ -77,6 +76,15 @@ int iwl_mvm_rx_rx_phy_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, memcpy(&mvm->last_phy_info, pkt->data, sizeof(mvm->last_phy_info)); mvm->ampdu_ref++; + +#ifdef CONFIG_IWLWIFI_DEBUGFS + if (mvm->last_phy_info.phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_AGG)) { + spin_lock(&mvm->drv_stats_lock); + mvm->drv_rx_stats.ampdu_count++; + spin_unlock(&mvm->drv_stats_lock); + } +#endif + return 0; } @@ -121,52 +129,46 @@ static void iwl_mvm_pass_packet_to_mac80211(struct iwl_mvm *mvm, memcpy(IEEE80211_SKB_RXCB(skb), stats, sizeof(*stats)); - ieee80211_rx_ni(mvm->hw, skb); + ieee80211_rx(mvm->hw, skb); } /* - * iwl_mvm_calc_rssi - calculate the rssi in dBm - * @phy_info: the phy information for the coming packet + * iwl_mvm_get_signal_strength - use new rx PHY INFO API + * values are reported by the fw as positive values - need to negate + * to obtain their dBM. Account for missing antennas by replacing 0 + * values by -256dBm: practically 0 power and a non-feasible 8 bit value. */ -static int iwl_mvm_calc_rssi(struct iwl_mvm *mvm, - struct iwl_rx_phy_info *phy_info) +static void iwl_mvm_get_signal_strength(struct iwl_mvm *mvm, + struct iwl_rx_phy_info *phy_info, + struct ieee80211_rx_status *rx_status) { - int rssi_a, rssi_b, rssi_a_dbm, rssi_b_dbm, max_rssi_dbm; - int rssi_all_band_a, rssi_all_band_b; - u32 agc_a, agc_b, max_agc; + int energy_a, energy_b, energy_c, max_energy; u32 val; - /* Find max rssi among 2 possible receivers. - * These values are measured by the Digital Signal Processor (DSP). - * They should stay fairly constant even as the signal strength varies, - * if the radio's Automatic Gain Control (AGC) is working right. - * AGC value (see below) will provide the "interesting" info. - */ - val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_AGC_IDX]); - agc_a = (val & IWL_OFDM_AGC_A_MSK) >> IWL_OFDM_AGC_A_POS; - agc_b = (val & IWL_OFDM_AGC_B_MSK) >> IWL_OFDM_AGC_B_POS; - max_agc = max_t(u32, agc_a, agc_b); - - val = le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_RSSI_AB_IDX]); - rssi_a = (val & IWL_OFDM_RSSI_INBAND_A_MSK) >> IWL_OFDM_RSSI_A_POS; - rssi_b = (val & IWL_OFDM_RSSI_INBAND_B_MSK) >> IWL_OFDM_RSSI_B_POS; - rssi_all_band_a = (val & IWL_OFDM_RSSI_ALLBAND_A_MSK) >> - IWL_OFDM_RSSI_ALLBAND_A_POS; - rssi_all_band_b = (val & IWL_OFDM_RSSI_ALLBAND_B_MSK) >> - IWL_OFDM_RSSI_ALLBAND_B_POS; - - /* - * dBm = rssi dB - agc dB - constant. - * Higher AGC (higher radio gain) means lower signal. - */ - rssi_a_dbm = rssi_a - IWL_RSSI_OFFSET - agc_a; - rssi_b_dbm = rssi_b - IWL_RSSI_OFFSET - agc_b; - max_rssi_dbm = max_t(int, rssi_a_dbm, rssi_b_dbm); - - IWL_DEBUG_STATS(mvm, "Rssi In A %d B %d Max %d AGCA %d AGCB %d\n", - rssi_a_dbm, rssi_b_dbm, max_rssi_dbm, agc_a, agc_b); - - return max_rssi_dbm; + val = + le32_to_cpu(phy_info->non_cfg_phy[IWL_RX_INFO_ENERGY_ANT_ABC_IDX]); + energy_a = (val & IWL_RX_INFO_ENERGY_ANT_A_MSK) >> + IWL_RX_INFO_ENERGY_ANT_A_POS; + energy_a = energy_a ? -energy_a : -256; + energy_b = (val & IWL_RX_INFO_ENERGY_ANT_B_MSK) >> + IWL_RX_INFO_ENERGY_ANT_B_POS; + energy_b = energy_b ? -energy_b : -256; + energy_c = (val & IWL_RX_INFO_ENERGY_ANT_C_MSK) >> + IWL_RX_INFO_ENERGY_ANT_C_POS; + energy_c = energy_c ? -energy_c : -256; + max_energy = max(energy_a, energy_b); + max_energy = max(max_energy, energy_c); + + IWL_DEBUG_STATS(mvm, "energy In A %d B %d C %d , and max %d\n", + energy_a, energy_b, energy_c, max_energy); + + rx_status->signal = max_energy; + rx_status->chains = (le16_to_cpu(phy_info->phy_flags) & + RX_RES_PHY_FLAGS_ANTENNA) + >> RX_RES_PHY_FLAGS_ANTENNA_POS; + rx_status->chain_signal[0] = energy_a; + rx_status->chain_signal[1] = energy_b; + rx_status->chain_signal[2] = energy_c; } /* @@ -216,6 +218,12 @@ static u32 iwl_mvm_set_mac80211_rx_flag(struct iwl_mvm *mvm, stats->flag |= RX_FLAG_DECRYPTED; return 0; + case RX_MPDU_RES_STATUS_SEC_EXT_ENC: + if (!(rx_pkt_status & RX_MPDU_RES_STATUS_MIC_OK)) + return -1; + stats->flag |= RX_FLAG_DECRYPTED; + return 0; + default: IWL_ERR(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status); } @@ -265,10 +273,14 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, return 0; } + /* + * Keep packets with CRC errors (and with overrun) for monitor mode + * (otherwise the firmware discards them) but mark them as bad. + */ if (!(rx_pkt_status & RX_MPDU_RES_STATUS_CRC_OK) || !(rx_pkt_status & RX_MPDU_RES_STATUS_OVERRUN_OK)) { IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status); - return 0; + rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; } /* This will be used in several places later */ @@ -289,29 +301,11 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, */ /*rx_status.flag |= RX_FLAG_MACTIME_MPDU;*/ - /* Find max signal strength (dBm) among 3 antenna/receiver chains */ - rx_status.signal = iwl_mvm_calc_rssi(mvm, phy_info); + iwl_mvm_get_signal_strength(mvm, phy_info, &rx_status); IWL_DEBUG_STATS_LIMIT(mvm, "Rssi %d, TSF %llu\n", rx_status.signal, (unsigned long long)rx_status.mactime); - /* - * "antenna number" - * - * It seems that the antenna field in the phy flags value - * is actually a bit field. This is undefined by radiotap, - * it wants an actual antenna number but I always get "7" - * for most legacy frames I receive indicating that the - * same frame was received on all three RX chains. - * - * I think this field should be removed in favor of a - * new 802.11n radiotap field "RX chains" that is defined - * as a bitmask. - */ - rx_status.antenna = (le16_to_cpu(phy_info->phy_flags) & - RX_RES_PHY_FLAGS_ANTENNA) - >> RX_RES_PHY_FLAGS_ANTENNA_POS; - /* set the preamble flag if appropriate */ if (phy_info->phy_flags & cpu_to_le16(RX_RES_PHY_FLAGS_SHORT_PREAMBLE)) rx_status.flag |= RX_FLAG_SHORTPRE; @@ -334,32 +328,161 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, rx_status.flag |= RX_FLAG_40MHZ; break; case RATE_MCS_CHAN_WIDTH_80: - rx_status.flag |= RX_FLAG_80MHZ; + rx_status.vht_flag |= RX_VHT_FLAG_80MHZ; break; case RATE_MCS_CHAN_WIDTH_160: - rx_status.flag |= RX_FLAG_160MHZ; + rx_status.vht_flag |= RX_VHT_FLAG_160MHZ; break; } if (rate_n_flags & RATE_MCS_SGI_MSK) rx_status.flag |= RX_FLAG_SHORT_GI; if (rate_n_flags & RATE_HT_MCS_GF_MSK) rx_status.flag |= RX_FLAG_HT_GF; + if (rate_n_flags & RATE_MCS_LDPC_MSK) + rx_status.flag |= RX_FLAG_LDPC; if (rate_n_flags & RATE_MCS_HT_MSK) { + u8 stbc = (rate_n_flags & RATE_MCS_HT_STBC_MSK) >> + RATE_MCS_STBC_POS; rx_status.flag |= RX_FLAG_HT; rx_status.rate_idx = rate_n_flags & RATE_HT_MCS_INDEX_MSK; + rx_status.flag |= stbc << RX_FLAG_STBC_SHIFT; } else if (rate_n_flags & RATE_MCS_VHT_MSK) { + u8 stbc = (rate_n_flags & RATE_MCS_VHT_STBC_MSK) >> + RATE_MCS_STBC_POS; rx_status.vht_nss = ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >> RATE_VHT_MCS_NSS_POS) + 1; rx_status.rate_idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK; rx_status.flag |= RX_FLAG_VHT; + rx_status.flag |= stbc << RX_FLAG_STBC_SHIFT; + if (rate_n_flags & RATE_MCS_BF_MSK) + rx_status.vht_flag |= RX_VHT_FLAG_BF; } else { rx_status.rate_idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags, rx_status.band); } +#ifdef CONFIG_IWLWIFI_DEBUGFS + iwl_mvm_update_frame_stats(mvm, &mvm->drv_rx_stats, rate_n_flags, + rx_status.flag & RX_FLAG_AMPDU_DETAILS); +#endif iwl_mvm_pass_packet_to_mac80211(mvm, hdr, len, ampdu_status, rxb, &rx_status); return 0; } + +static void iwl_mvm_update_rx_statistics(struct iwl_mvm *mvm, + struct iwl_notif_statistics *stats) +{ + /* + * NOTE FW aggregates the statistics - BUT the statistics are cleared + * when the driver issues REPLY_STATISTICS_CMD 0x9c with CLEAR_STATS + * bit set. + */ + lockdep_assert_held(&mvm->mutex); + memcpy(&mvm->rx_stats, &stats->rx, sizeof(struct mvm_statistics_rx)); +} + +struct iwl_mvm_stat_data { + struct iwl_notif_statistics *stats; + struct iwl_mvm *mvm; +}; + +static void iwl_mvm_stat_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_stat_data *data = _data; + struct iwl_notif_statistics *stats = data->stats; + struct iwl_mvm *mvm = data->mvm; + int sig = -stats->general.beacon_filter_average_energy; + int last_event; + int thold = vif->bss_conf.cqm_rssi_thold; + int hyst = vif->bss_conf.cqm_rssi_hyst; + u16 id = le32_to_cpu(stats->rx.general.mac_id); + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (mvmvif->id != id) + return; + + if (vif->type != NL80211_IFTYPE_STATION) + return; + + mvmvif->bf_data.ave_beacon_signal = sig; + + /* BT Coex */ + if (mvmvif->bf_data.bt_coex_min_thold != + mvmvif->bf_data.bt_coex_max_thold) { + last_event = mvmvif->bf_data.last_bt_coex_event; + if (sig > mvmvif->bf_data.bt_coex_max_thold && + (last_event <= mvmvif->bf_data.bt_coex_min_thold || + last_event == 0)) { + mvmvif->bf_data.last_bt_coex_event = sig; + IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n", + sig); + iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH); + } else if (sig < mvmvif->bf_data.bt_coex_min_thold && + (last_event >= mvmvif->bf_data.bt_coex_max_thold || + last_event == 0)) { + mvmvif->bf_data.last_bt_coex_event = sig; + IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n", + sig); + iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW); + } + } + + if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) + return; + + /* CQM Notification */ + last_event = mvmvif->bf_data.last_cqm_event; + if (thold && sig < thold && (last_event == 0 || + sig < last_event - hyst)) { + mvmvif->bf_data.last_cqm_event = sig; + IWL_DEBUG_RX(mvm, "cqm_iterator cqm low %d\n", + sig); + ieee80211_cqm_rssi_notify( + vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, + GFP_KERNEL); + } else if (sig > thold && + (last_event == 0 || sig > last_event + hyst)) { + mvmvif->bf_data.last_cqm_event = sig; + IWL_DEBUG_RX(mvm, "cqm_iterator cqm high %d\n", + sig); + ieee80211_cqm_rssi_notify( + vif, + NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, + GFP_KERNEL); + } +} + +/* + * iwl_mvm_rx_statistics - STATISTICS_NOTIFICATION handler + * + * TODO: This handler is implemented partially. + */ +int iwl_mvm_rx_statistics(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_notif_statistics *stats = (void *)&pkt->data; + struct mvm_statistics_general_common *common = &stats->general.common; + struct iwl_mvm_stat_data data = { + .stats = stats, + .mvm = mvm, + }; + + if (mvm->temperature != le32_to_cpu(common->temperature)) { + mvm->temperature = le32_to_cpu(common->temperature); + iwl_mvm_tt_handler(mvm); + } + iwl_mvm_update_rx_statistics(mvm, stats); + + ieee80211_iterate_active_interfaces(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_stat_iterator, + &data); + return 0; +} diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 2476e43799d..eac2b424f6a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -71,11 +71,25 @@ #define IWL_PLCP_QUIET_THRESH 1 #define IWL_ACTIVE_QUIET_TIME 10 +struct iwl_mvm_scan_params { + u32 max_out_time; + u32 suspend_time; + bool passive_fragmented; + struct _dwell { + u16 passive; + u16 active; + } dwell[IEEE80211_NUM_BANDS]; +}; + static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm) { u16 rx_chain; - u8 rx_ant = iwl_fw_valid_rx_ant(mvm->fw); + u8 rx_ant; + if (mvm->scan_rx_ant != ANT_NONE) + rx_ant = mvm->scan_rx_ant; + else + rx_ant = mvm->fw->valid_rx_ant; rx_chain = rx_ant << PHY_RX_CHAIN_VALID_POS; rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_MIMO_SEL_POS; rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_SEL_POS; @@ -83,22 +97,6 @@ static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm) return cpu_to_le16(rx_chain); } -static inline __le32 iwl_mvm_scan_max_out_time(struct ieee80211_vif *vif) -{ - if (vif->bss_conf.assoc) - return cpu_to_le32(200 * 1024); - else - return 0; -} - -static inline __le32 iwl_mvm_scan_suspend_time(struct ieee80211_vif *vif) -{ - if (vif->bss_conf.assoc) - return cpu_to_le32(vif->bss_conf.beacon_int); - else - return 0; -} - static inline __le32 iwl_mvm_scan_rxon_flags(struct cfg80211_scan_request *req) { @@ -115,7 +113,7 @@ iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum ieee80211_band band, u32 tx_ant; mvm->scan_last_antenna_idx = - iwl_mvm_next_antenna(mvm, iwl_fw_valid_tx_ant(mvm->fw), + iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant, mvm->scan_last_antenna_idx); tx_ant = BIT(mvm->scan_last_antenna_idx) << RATE_MCS_ANT_POS; @@ -133,12 +131,13 @@ iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum ieee80211_band band, * request. */ static void iwl_mvm_scan_fill_ssids(struct iwl_scan_cmd *cmd, - struct cfg80211_scan_request *req) + struct cfg80211_scan_request *req, + int first) { int fw_idx, req_idx; - fw_idx = 0; - for (req_idx = req->n_ssids - 1; req_idx > 0; req_idx--) { + for (req_idx = req->n_ssids - 1, fw_idx = 0; req_idx >= first; + req_idx--, fw_idx++) { cmd->direct_scan[fw_idx].id = WLAN_EID_SSID; cmd->direct_scan[fw_idx].len = req->ssids[req_idx].ssid_len; memcpy(cmd->direct_scan[fw_idx].ssid, @@ -153,7 +152,9 @@ static void iwl_mvm_scan_fill_ssids(struct iwl_scan_cmd *cmd, * just to notify that this scan is active and not passive. * In order to notify the FW of the number of SSIDs we wish to scan (including * the zero-length one), we need to set the corresponding bits in chan->type, - * one for each SSID, and set the active bit (first). + * one for each SSID, and set the active bit (first). If the first SSID is + * already included in the probe template, so we need to set only + * req->n_ssids - 1 bits in addition to the first bit. */ static u16 iwl_mvm_get_active_dwell(enum ieee80211_band band, int n_ssids) { @@ -168,29 +169,26 @@ static u16 iwl_mvm_get_passive_dwell(enum ieee80211_band band) } static void iwl_mvm_scan_fill_channels(struct iwl_scan_cmd *cmd, - struct cfg80211_scan_request *req) + struct cfg80211_scan_request *req, + bool basic_ssid, + struct iwl_mvm_scan_params *params) { - u16 passive_dwell = iwl_mvm_get_passive_dwell(req->channels[0]->band); - u16 active_dwell = iwl_mvm_get_active_dwell(req->channels[0]->band, - req->n_ssids); struct iwl_scan_channel *chan = (struct iwl_scan_channel *) (cmd->data + le16_to_cpu(cmd->tx_cmd.len)); int i; - __le32 chan_type_value; + int type = BIT(req->n_ssids) - 1; + enum ieee80211_band band = req->channels[0]->band; - if (req->n_ssids > 0) - chan_type_value = cpu_to_le32(BIT(req->n_ssids + 1) - 1); - else - chan_type_value = SCAN_CHANNEL_TYPE_PASSIVE; + if (!basic_ssid) + type |= BIT(req->n_ssids); for (i = 0; i < cmd->channel_count; i++) { chan->channel = cpu_to_le16(req->channels[i]->hw_value); - if (req->channels[i]->flags & IEEE80211_CHAN_PASSIVE_SCAN) - chan->type = SCAN_CHANNEL_TYPE_PASSIVE; - else - chan->type = chan_type_value; - chan->active_dwell = cpu_to_le16(active_dwell); - chan->passive_dwell = cpu_to_le16(passive_dwell); + chan->type = cpu_to_le32(type); + if (req->channels[i]->flags & IEEE80211_CHAN_NO_IR) + chan->type &= cpu_to_le32(~SCAN_CHANNEL_TYPE_ACTIVE); + chan->active_dwell = cpu_to_le16(params->dwell[band].active); + chan->passive_dwell = cpu_to_le16(params->dwell[band].passive); chan->iteration_count = cpu_to_le16(1); chan++; } @@ -257,6 +255,49 @@ static u16 iwl_mvm_fill_probe_req(struct ieee80211_mgmt *frame, const u8 *ta, return (u16)len; } +static void iwl_mvm_scan_condition_iterator(void *data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + bool *global_bound = data; + + if (mvmvif->phy_ctxt && mvmvif->phy_ctxt->id < MAX_PHYS) + *global_bound = true; +} + +static void iwl_mvm_scan_calc_params(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + int n_ssids, + struct iwl_mvm_scan_params *params) +{ + bool global_bound = false; + enum ieee80211_band band; + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_scan_condition_iterator, + &global_bound); + + if (!global_bound) + goto not_bound; + + params->suspend_time = 100; + params->max_out_time = 600; + + if (iwl_mvm_low_latency(mvm)) { + params->suspend_time = 250; + params->max_out_time = 250; + } + +not_bound: + + for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) { + params->dwell[band].passive = iwl_mvm_get_passive_dwell(band); + params->dwell[band].active = iwl_mvm_get_active_dwell(band, + n_ssids); + } +} + int iwl_mvm_scan_request(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct cfg80211_scan_request *req) @@ -265,7 +306,6 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm, .id = SCAN_REQUEST_CMD, .len = { 0, }, .data = { mvm->scan_cmd, }, - .flags = CMD_SYNC, .dataflags = { IWL_HCMD_DFL_NOCOPY, }, }; struct iwl_scan_cmd *cmd = mvm->scan_cmd; @@ -273,9 +313,15 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm, u32 status; int ssid_len = 0; u8 *ssid = NULL; + bool basic_ssid = !(mvm->fw->ucode_capa.flags & + IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID); + struct iwl_mvm_scan_params params = {}; lockdep_assert_held(&mvm->mutex); - BUG_ON(mvm->scan_cmd == NULL); + + /* we should have failed registration if scan_cmd was NULL */ + if (WARN_ON(mvm->scan_cmd == NULL)) + return -ENOMEM; IWL_DEBUG_SCAN(mvm, "Handling mac80211 scan request\n"); mvm->scan_status = IWL_MVM_SCAN_OS; @@ -287,8 +333,13 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm, cmd->quiet_time = cpu_to_le16(IWL_ACTIVE_QUIET_TIME); cmd->quiet_plcp_th = cpu_to_le16(IWL_PLCP_QUIET_THRESH); cmd->rxchain_sel_flags = iwl_mvm_scan_rx_chain(mvm); - cmd->max_out_time = iwl_mvm_scan_max_out_time(vif); - cmd->suspend_time = iwl_mvm_scan_suspend_time(vif); + + iwl_mvm_scan_calc_params(mvm, vif, req->n_ssids, ¶ms); + cmd->max_out_time = cpu_to_le32(params.max_out_time); + cmd->suspend_time = cpu_to_le32(params.suspend_time); + if (params.passive_fragmented) + cmd->scan_flags |= SCAN_FLAGS_FRAGMENTED_SCAN; + cmd->rxon_flags = iwl_mvm_scan_rxon_flags(req); cmd->filter_flags = cpu_to_le32(MAC_FILTER_ACCEPT_GRP | MAC_FILTER_IN_BEACON); @@ -298,12 +349,6 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm, else cmd->type = cpu_to_le32(SCAN_TYPE_FORCED); - /* - * TODO: This is a WA due to a bug in the FW AUX framework that does not - * properly handle time events that fail to be scheduled - */ - cmd->type = cpu_to_le32(SCAN_TYPE_FORCED); - cmd->repeats = cpu_to_le32(1); /* @@ -312,15 +357,20 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm, */ if (req->n_ssids > 0) { cmd->passive2active = cpu_to_le16(1); - ssid = req->ssids[0].ssid; - ssid_len = req->ssids[0].ssid_len; + cmd->scan_flags |= SCAN_FLAGS_PASSIVE2ACTIVE; + if (basic_ssid) { + ssid = req->ssids[0].ssid; + ssid_len = req->ssids[0].ssid_len; + } } else { cmd->passive2active = 0; + cmd->scan_flags &= ~SCAN_FLAGS_PASSIVE2ACTIVE; } - iwl_mvm_scan_fill_ssids(cmd, req); + iwl_mvm_scan_fill_ssids(cmd, req, basic_ssid ? 1 : 0); - cmd->tx_cmd.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL); + cmd->tx_cmd.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL | + TX_CMD_FLG_BT_DIS); cmd->tx_cmd.sta_id = mvm->aux_sta.sta_id; cmd->tx_cmd.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); cmd->tx_cmd.rate_n_flags = @@ -335,7 +385,7 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm, req->ie, req->ie_len, mvm->fw->ucode_capa.max_probe_length)); - iwl_mvm_scan_fill_channels(cmd, req); + iwl_mvm_scan_fill_channels(cmd, req, basic_ssid, ¶ms); cmd->len = cpu_to_le16(sizeof(struct iwl_scan_cmd) + le16_to_cpu(cmd->tx_cmd.len) + @@ -377,12 +427,32 @@ int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_rx_packet *pkt = rxb_addr(rxb); struct iwl_scan_complete_notif *notif = (void *)pkt->data; + lockdep_assert_held(&mvm->mutex); + IWL_DEBUG_SCAN(mvm, "Scan complete: status=0x%x scanned channels=%d\n", notif->status, notif->scanned_channels); - mvm->scan_status = IWL_MVM_SCAN_NONE; + if (mvm->scan_status == IWL_MVM_SCAN_OS) + mvm->scan_status = IWL_MVM_SCAN_NONE; ieee80211_scan_completed(mvm->hw, notif->status != SCAN_COMP_STATUS_OK); + iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); + + return 0; +} + +int iwl_mvm_rx_sched_scan_results(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_sched_scan_results *notif = (void *)pkt->data; + + if (notif->client_bitmap & SCAN_CLIENT_SCHED_SCAN) { + IWL_DEBUG_SCAN(mvm, "Scheduled scan results\n"); + ieee80211_sched_scan_results(mvm->hw); + } + return 0; } @@ -403,6 +473,11 @@ static bool iwl_mvm_scan_abort_notif(struct iwl_notif_wait_data *notif_wait, return false; } + /* + * If scan cannot be aborted, it means that we had a + * SCAN_COMPLETE_NOTIFICATION in the pipe and it called + * ieee80211_scan_completed already. + */ IWL_DEBUG_SCAN(mvm, "Scan cannot be aborted, exit now: %d\n", *resp); return true; @@ -419,30 +494,457 @@ static bool iwl_mvm_scan_abort_notif(struct iwl_notif_wait_data *notif_wait, }; } -void iwl_mvm_cancel_scan(struct iwl_mvm *mvm) +int iwl_mvm_cancel_scan(struct iwl_mvm *mvm) { struct iwl_notification_wait wait_scan_abort; static const u8 scan_abort_notif[] = { SCAN_ABORT_CMD, SCAN_COMPLETE_NOTIFICATION }; int ret; + if (mvm->scan_status == IWL_MVM_SCAN_NONE) + return 0; + + if (iwl_mvm_is_radio_killed(mvm)) { + ieee80211_scan_completed(mvm->hw, true); + iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); + mvm->scan_status = IWL_MVM_SCAN_NONE; + return 0; + } + iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_abort, scan_abort_notif, ARRAY_SIZE(scan_abort_notif), iwl_mvm_scan_abort_notif, NULL); - ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD, CMD_SYNC, 0, NULL); + ret = iwl_mvm_send_cmd_pdu(mvm, SCAN_ABORT_CMD, 0, 0, NULL); if (ret) { IWL_ERR(mvm, "Couldn't send SCAN_ABORT_CMD: %d\n", ret); + /* mac80211's state will be cleaned in the nic_restart flow */ goto out_remove_notif; } - ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_abort, 1 * HZ); - if (ret) - IWL_ERR(mvm, "%s - failed on timeout\n", __func__); - - return; + return iwl_wait_notification(&mvm->notif_wait, &wait_scan_abort, HZ); out_remove_notif: iwl_remove_notification(&mvm->notif_wait, &wait_scan_abort); + return ret; +} + +int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_scan_offload_complete *scan_notif = (void *)pkt->data; + + /* scan status must be locked for proper checking */ + lockdep_assert_held(&mvm->mutex); + + IWL_DEBUG_SCAN(mvm, + "Scheduled scan completed, status %s EBS status %s:%d\n", + scan_notif->status == IWL_SCAN_OFFLOAD_COMPLETED ? + "completed" : "aborted", scan_notif->ebs_status == + IWL_SCAN_EBS_SUCCESS ? "success" : "failed", + scan_notif->ebs_status); + + + /* only call mac80211 completion if the stop was initiated by FW */ + if (mvm->scan_status == IWL_MVM_SCAN_SCHED) { + mvm->scan_status = IWL_MVM_SCAN_NONE; + ieee80211_sched_scan_stopped(mvm->hw); + } + + mvm->last_ebs_successful = !scan_notif->ebs_status; + + return 0; +} + +static void iwl_scan_offload_build_tx_cmd(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct ieee80211_sched_scan_ies *ies, + enum ieee80211_band band, + struct iwl_tx_cmd *cmd, + u8 *data) +{ + u16 cmd_len; + + cmd->tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL); + cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); + cmd->sta_id = mvm->aux_sta.sta_id; + + cmd->rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm, band, false); + + cmd_len = iwl_mvm_fill_probe_req((struct ieee80211_mgmt *)data, + vif->addr, + 1, NULL, 0, + ies->ie[band], ies->len[band], + SCAN_OFFLOAD_PROBE_REQ_SIZE); + cmd->len = cpu_to_le16(cmd_len); +} + +static void iwl_build_scan_cmd(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *req, + struct iwl_scan_offload_cmd *scan, + struct iwl_mvm_scan_params *params) +{ + scan->channel_count = req->n_channels; + scan->quiet_time = cpu_to_le16(IWL_ACTIVE_QUIET_TIME); + scan->quiet_plcp_th = cpu_to_le16(IWL_PLCP_QUIET_THRESH); + scan->good_CRC_th = IWL_GOOD_CRC_TH_DEFAULT; + scan->rx_chain = iwl_mvm_scan_rx_chain(mvm); + + scan->max_out_time = cpu_to_le32(params->max_out_time); + scan->suspend_time = cpu_to_le32(params->suspend_time); + + scan->filter_flags |= cpu_to_le32(MAC_FILTER_ACCEPT_GRP | + MAC_FILTER_IN_BEACON); + scan->scan_type = cpu_to_le32(SCAN_TYPE_BACKGROUND); + scan->rep_count = cpu_to_le32(1); + + if (params->passive_fragmented) + scan->scan_flags |= SCAN_FLAGS_FRAGMENTED_SCAN; +} + +static int iwl_ssid_exist(u8 *ssid, u8 ssid_len, struct iwl_ssid_ie *ssid_list) +{ + int i; + + for (i = 0; i < PROBE_OPTION_MAX; i++) { + if (!ssid_list[i].len) + break; + if (ssid_list[i].len == ssid_len && + !memcmp(ssid_list->ssid, ssid, ssid_len)) + return i; + } + return -1; +} + +static void iwl_scan_offload_build_ssid(struct cfg80211_sched_scan_request *req, + struct iwl_scan_offload_cmd *scan, + u32 *ssid_bitmap) +{ + int i, j; + int index; + + /* + * copy SSIDs from match list. + * iwl_config_sched_scan_profiles() uses the order of these ssids to + * config match list. + */ + for (i = 0; i < req->n_match_sets && i < PROBE_OPTION_MAX; i++) { + /* skip empty SSID matchsets */ + if (!req->match_sets[i].ssid.ssid_len) + continue; + scan->direct_scan[i].id = WLAN_EID_SSID; + scan->direct_scan[i].len = req->match_sets[i].ssid.ssid_len; + memcpy(scan->direct_scan[i].ssid, req->match_sets[i].ssid.ssid, + scan->direct_scan[i].len); + } + + /* add SSIDs from scan SSID list */ + *ssid_bitmap = 0; + for (j = 0; j < req->n_ssids && i < PROBE_OPTION_MAX; j++) { + index = iwl_ssid_exist(req->ssids[j].ssid, + req->ssids[j].ssid_len, + scan->direct_scan); + if (index < 0) { + if (!req->ssids[j].ssid_len) + continue; + scan->direct_scan[i].id = WLAN_EID_SSID; + scan->direct_scan[i].len = req->ssids[j].ssid_len; + memcpy(scan->direct_scan[i].ssid, req->ssids[j].ssid, + scan->direct_scan[i].len); + *ssid_bitmap |= BIT(i + 1); + i++; + } else { + *ssid_bitmap |= BIT(index + 1); + } + } +} + +static void iwl_build_channel_cfg(struct iwl_mvm *mvm, + struct cfg80211_sched_scan_request *req, + struct iwl_scan_channel_cfg *channels, + enum ieee80211_band band, + int *head, + u32 ssid_bitmap, + struct iwl_mvm_scan_params *params) +{ + int i, index = 0; + + for (i = 0; i < req->n_channels; i++) { + struct ieee80211_channel *chan = req->channels[i]; + + if (chan->band != band) + continue; + + index = *head; + (*head)++; + + channels->channel_number[index] = cpu_to_le16(chan->hw_value); + channels->dwell_time[index][0] = params->dwell[band].active; + channels->dwell_time[index][1] = params->dwell[band].passive; + + channels->iter_count[index] = cpu_to_le16(1); + channels->iter_interval[index] = 0; + + if (!(chan->flags & IEEE80211_CHAN_NO_IR)) + channels->type[index] |= + cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_ACTIVE); + + channels->type[index] |= + cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_FULL | + IWL_SCAN_OFFLOAD_CHANNEL_PARTIAL); + + if (chan->flags & IEEE80211_CHAN_NO_HT40) + channels->type[index] |= + cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_NARROW); + + /* scan for all SSIDs from req->ssids */ + channels->type[index] |= cpu_to_le32(ssid_bitmap); + } +} + +int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + struct cfg80211_sched_scan_request *req, + struct ieee80211_sched_scan_ies *ies) +{ + int band_2ghz = mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels; + int band_5ghz = mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels; + int head = 0; + u32 ssid_bitmap; + int cmd_len; + int ret; + + struct iwl_scan_offload_cfg *scan_cfg; + struct iwl_host_cmd cmd = { + .id = SCAN_OFFLOAD_CONFIG_CMD, + }; + struct iwl_mvm_scan_params params = {}; + + lockdep_assert_held(&mvm->mutex); + + cmd_len = sizeof(struct iwl_scan_offload_cfg) + + 2 * SCAN_OFFLOAD_PROBE_REQ_SIZE; + + scan_cfg = kzalloc(cmd_len, GFP_KERNEL); + if (!scan_cfg) + return -ENOMEM; + + iwl_mvm_scan_calc_params(mvm, vif, req->n_ssids, ¶ms); + iwl_build_scan_cmd(mvm, vif, req, &scan_cfg->scan_cmd, ¶ms); + scan_cfg->scan_cmd.len = cpu_to_le16(cmd_len); + + iwl_scan_offload_build_ssid(req, &scan_cfg->scan_cmd, &ssid_bitmap); + /* build tx frames for supported bands */ + if (band_2ghz) { + iwl_scan_offload_build_tx_cmd(mvm, vif, ies, + IEEE80211_BAND_2GHZ, + &scan_cfg->scan_cmd.tx_cmd[0], + scan_cfg->data); + iwl_build_channel_cfg(mvm, req, &scan_cfg->channel_cfg, + IEEE80211_BAND_2GHZ, &head, + ssid_bitmap, ¶ms); + } + if (band_5ghz) { + iwl_scan_offload_build_tx_cmd(mvm, vif, ies, + IEEE80211_BAND_5GHZ, + &scan_cfg->scan_cmd.tx_cmd[1], + scan_cfg->data + + SCAN_OFFLOAD_PROBE_REQ_SIZE); + iwl_build_channel_cfg(mvm, req, &scan_cfg->channel_cfg, + IEEE80211_BAND_5GHZ, &head, + ssid_bitmap, ¶ms); + } + + cmd.data[0] = scan_cfg; + cmd.len[0] = cmd_len; + cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; + + IWL_DEBUG_SCAN(mvm, "Sending scheduled scan config\n"); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + kfree(scan_cfg); + return ret; +} + +int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm, + struct cfg80211_sched_scan_request *req) +{ + struct iwl_scan_offload_profile *profile; + struct iwl_scan_offload_profile_cfg *profile_cfg; + struct iwl_scan_offload_blacklist *blacklist; + struct iwl_host_cmd cmd = { + .id = SCAN_OFFLOAD_UPDATE_PROFILES_CMD, + .len[1] = sizeof(*profile_cfg), + .dataflags[0] = IWL_HCMD_DFL_NOCOPY, + .dataflags[1] = IWL_HCMD_DFL_NOCOPY, + }; + int blacklist_len; + int i; + int ret; + + if (WARN_ON(req->n_match_sets > IWL_SCAN_MAX_PROFILES)) + return -EIO; + + if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SHORT_BL) + blacklist_len = IWL_SCAN_SHORT_BLACKLIST_LEN; + else + blacklist_len = IWL_SCAN_MAX_BLACKLIST_LEN; + + blacklist = kzalloc(sizeof(*blacklist) * blacklist_len, GFP_KERNEL); + if (!blacklist) + return -ENOMEM; + + profile_cfg = kzalloc(sizeof(*profile_cfg), GFP_KERNEL); + if (!profile_cfg) { + ret = -ENOMEM; + goto free_blacklist; + } + + cmd.data[0] = blacklist; + cmd.len[0] = sizeof(*blacklist) * blacklist_len; + cmd.data[1] = profile_cfg; + + /* No blacklist configuration */ + + profile_cfg->num_profiles = req->n_match_sets; + profile_cfg->active_clients = SCAN_CLIENT_SCHED_SCAN; + profile_cfg->pass_match = SCAN_CLIENT_SCHED_SCAN; + profile_cfg->match_notify = SCAN_CLIENT_SCHED_SCAN; + if (!req->n_match_sets || !req->match_sets[0].ssid.ssid_len) + profile_cfg->any_beacon_notify = SCAN_CLIENT_SCHED_SCAN; + + for (i = 0; i < req->n_match_sets; i++) { + profile = &profile_cfg->profiles[i]; + profile->ssid_index = i; + /* Support any cipher and auth algorithm */ + profile->unicast_cipher = 0xff; + profile->auth_alg = 0xff; + profile->network_type = IWL_NETWORK_TYPE_ANY; + profile->band_selection = IWL_SCAN_OFFLOAD_SELECT_ANY; + profile->client_bitmap = SCAN_CLIENT_SCHED_SCAN; + } + + IWL_DEBUG_SCAN(mvm, "Sending scheduled scan profile config\n"); + + ret = iwl_mvm_send_cmd(mvm, &cmd); + kfree(profile_cfg); +free_blacklist: + kfree(blacklist); + + return ret; +} + +int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm, + struct cfg80211_sched_scan_request *req) +{ + struct iwl_scan_offload_req scan_req = { + .watchdog = IWL_SCHED_SCAN_WATCHDOG, + + .schedule_line[0].iterations = IWL_FAST_SCHED_SCAN_ITERATIONS, + .schedule_line[0].delay = req->interval / 1000, + .schedule_line[0].full_scan_mul = 1, + + .schedule_line[1].iterations = 0xff, + .schedule_line[1].delay = req->interval / 1000, + .schedule_line[1].full_scan_mul = IWL_FULL_SCAN_MULTIPLIER, + }; + + if (req->n_match_sets && req->match_sets[0].ssid.ssid_len) { + IWL_DEBUG_SCAN(mvm, + "Sending scheduled scan with filtering, filter len %d\n", + req->n_match_sets); + } else { + IWL_DEBUG_SCAN(mvm, + "Sending Scheduled scan without filtering\n"); + scan_req.flags |= cpu_to_le16(IWL_SCAN_OFFLOAD_FLAG_PASS_ALL); + } + + if (mvm->last_ebs_successful && + mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_EBS_SUPPORT) + scan_req.flags |= + cpu_to_le16(IWL_SCAN_OFFLOAD_FLAG_EBS_ACCURATE_MODE); + + return iwl_mvm_send_cmd_pdu(mvm, SCAN_OFFLOAD_REQUEST_CMD, 0, + sizeof(scan_req), &scan_req); +} + +static int iwl_mvm_send_sched_scan_abort(struct iwl_mvm *mvm) +{ + int ret; + struct iwl_host_cmd cmd = { + .id = SCAN_OFFLOAD_ABORT_CMD, + }; + u32 status; + + /* Exit instantly with error when device is not ready + * to receive scan abort command or it does not perform + * scheduled scan currently */ + if (mvm->scan_status != IWL_MVM_SCAN_SCHED) + return -EIO; + + ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status); + if (ret) + return ret; + + if (status != CAN_ABORT_STATUS) { + /* + * The scan abort will return 1 for success or + * 2 for "failure". A failure condition can be + * due to simply not being in an active scan which + * can occur if we send the scan abort before the + * microcode has notified us that a scan is completed. + */ + IWL_DEBUG_SCAN(mvm, "SCAN OFFLOAD ABORT ret %d.\n", status); + ret = -ENOENT; + } + + return ret; +} + +int iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm, bool notify) +{ + int ret; + struct iwl_notification_wait wait_scan_done; + static const u8 scan_done_notif[] = { SCAN_OFFLOAD_COMPLETE, }; + + lockdep_assert_held(&mvm->mutex); + + if (mvm->scan_status != IWL_MVM_SCAN_SCHED) { + IWL_DEBUG_SCAN(mvm, "No offloaded scan to stop\n"); + return 0; + } + + iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_done, + scan_done_notif, + ARRAY_SIZE(scan_done_notif), + NULL, NULL); + + ret = iwl_mvm_send_sched_scan_abort(mvm); + if (ret) { + IWL_DEBUG_SCAN(mvm, "Send stop offload scan failed %d\n", ret); + iwl_remove_notification(&mvm->notif_wait, &wait_scan_done); + return ret; + } + + IWL_DEBUG_SCAN(mvm, "Successfully sent stop offload scan\n"); + + ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_done, 1 * HZ); + if (ret) + return ret; + + /* + * Clear the scan status so the next scan requests will succeed. This + * also ensures the Rx handler doesn't do anything, as the scan was + * stopped from above. + */ + mvm->scan_status = IWL_MVM_SCAN_NONE; + + if (notify) + ieee80211_sched_scan_stopped(mvm->hw); + + return 0; } diff --git a/drivers/net/wireless/iwlwifi/mvm/sf.c b/drivers/net/wireless/iwlwifi/mvm/sf.c new file mode 100644 index 00000000000..7edfd15efc9 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/sf.c @@ -0,0 +1,289 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ +#include "mvm.h" + +/* For counting bound interfaces */ +struct iwl_mvm_active_iface_iterator_data { + struct ieee80211_vif *ignore_vif; + u8 sta_vif_ap_sta_id; + enum iwl_sf_state sta_vif_state; + int num_active_macs; +}; + +/* + * Count bound interfaces which are not p2p, besides data->ignore_vif. + * data->station_vif will point to one bound vif of type station, if exists. + */ +static void iwl_mvm_bound_iface_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_active_iface_iterator_data *data = _data; + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + + if (vif == data->ignore_vif || !mvmvif->phy_ctxt || + vif->type == NL80211_IFTYPE_P2P_DEVICE) + return; + + data->num_active_macs++; + + if (vif->type == NL80211_IFTYPE_STATION) { + data->sta_vif_ap_sta_id = mvmvif->ap_sta_id; + if (vif->bss_conf.assoc) + data->sta_vif_state = SF_FULL_ON; + else + data->sta_vif_state = SF_INIT_OFF; + } +} + +/* + * Aging and idle timeouts for the different possible scenarios + * in SF_FULL_ON state. + */ +static const __le32 sf_full_timeout[SF_NUM_SCENARIO][SF_NUM_TIMEOUT_TYPES] = { + { + cpu_to_le32(SF_SINGLE_UNICAST_AGING_TIMER), + cpu_to_le32(SF_SINGLE_UNICAST_IDLE_TIMER) + }, + { + cpu_to_le32(SF_AGG_UNICAST_AGING_TIMER), + cpu_to_le32(SF_AGG_UNICAST_IDLE_TIMER) + }, + { + cpu_to_le32(SF_MCAST_AGING_TIMER), + cpu_to_le32(SF_MCAST_IDLE_TIMER) + }, + { + cpu_to_le32(SF_BA_AGING_TIMER), + cpu_to_le32(SF_BA_IDLE_TIMER) + }, + { + cpu_to_le32(SF_TX_RE_AGING_TIMER), + cpu_to_le32(SF_TX_RE_IDLE_TIMER) + }, +}; + +static void iwl_mvm_fill_sf_command(struct iwl_sf_cfg_cmd *sf_cmd, + struct ieee80211_sta *sta) +{ + int i, j, watermark; + + sf_cmd->watermark[SF_LONG_DELAY_ON] = cpu_to_le32(SF_W_MARK_SCAN); + + /* + * If we are in association flow - check antenna configuration + * capabilities of the AP station, and choose the watermark accordingly. + */ + if (sta) { + if (sta->ht_cap.ht_supported || sta->vht_cap.vht_supported) { + switch (sta->rx_nss) { + case 1: + watermark = SF_W_MARK_SISO; + break; + case 2: + watermark = SF_W_MARK_MIMO2; + break; + default: + watermark = SF_W_MARK_MIMO3; + break; + } + } else { + watermark = SF_W_MARK_LEGACY; + } + /* default watermark value for unassociated mode. */ + } else { + watermark = SF_W_MARK_MIMO2; + } + sf_cmd->watermark[SF_FULL_ON] = cpu_to_le32(watermark); + + for (i = 0; i < SF_NUM_SCENARIO; i++) { + for (j = 0; j < SF_NUM_TIMEOUT_TYPES; j++) { + sf_cmd->long_delay_timeouts[i][j] = + cpu_to_le32(SF_LONG_DELAY_AGING_TIMER); + } + } + BUILD_BUG_ON(sizeof(sf_full_timeout) != + sizeof(__le32) * SF_NUM_SCENARIO * SF_NUM_TIMEOUT_TYPES); + + memcpy(sf_cmd->full_on_timeouts, sf_full_timeout, + sizeof(sf_full_timeout)); +} + +static int iwl_mvm_sf_config(struct iwl_mvm *mvm, u8 sta_id, + enum iwl_sf_state new_state) +{ + struct iwl_sf_cfg_cmd sf_cmd = { + .state = new_state, + }; + struct ieee80211_sta *sta; + int ret = 0; + + /* + * If an associated AP sta changed its antenna configuration, the state + * will remain FULL_ON but SF parameters need to be reconsidered. + */ + if (new_state != SF_FULL_ON && mvm->sf_state == new_state) + return 0; + + switch (new_state) { + case SF_UNINIT: + break; + case SF_FULL_ON: + if (sta_id == IWL_MVM_STATION_COUNT) { + IWL_ERR(mvm, + "No station: Cannot switch SF to FULL_ON\n"); + return -EINVAL; + } + rcu_read_lock(); + sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); + if (IS_ERR_OR_NULL(sta)) { + IWL_ERR(mvm, "Invalid station id\n"); + rcu_read_unlock(); + return -EINVAL; + } + iwl_mvm_fill_sf_command(&sf_cmd, sta); + rcu_read_unlock(); + break; + case SF_INIT_OFF: + iwl_mvm_fill_sf_command(&sf_cmd, NULL); + break; + default: + WARN_ONCE(1, "Invalid state: %d. not sending Smart Fifo cmd\n", + new_state); + return -EINVAL; + } + + ret = iwl_mvm_send_cmd_pdu(mvm, REPLY_SF_CFG_CMD, CMD_ASYNC, + sizeof(sf_cmd), &sf_cmd); + if (!ret) + mvm->sf_state = new_state; + + return ret; +} + +/* + * Update Smart fifo: + * Count bound interfaces that are not to be removed, ignoring p2p devices, + * and set new state accordingly. + */ +int iwl_mvm_sf_update(struct iwl_mvm *mvm, struct ieee80211_vif *changed_vif, + bool remove_vif) +{ + enum iwl_sf_state new_state; + u8 sta_id = IWL_MVM_STATION_COUNT; + struct iwl_mvm_vif *mvmvif = NULL; + struct iwl_mvm_active_iface_iterator_data data = { + .ignore_vif = changed_vif, + .sta_vif_state = SF_UNINIT, + .sta_vif_ap_sta_id = IWL_MVM_STATION_COUNT, + }; + + /* + * Ignore the call if we are in HW Restart flow, or if the handled + * vif is a p2p device. + */ + if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) || + (changed_vif && changed_vif->type == NL80211_IFTYPE_P2P_DEVICE)) + return 0; + + ieee80211_iterate_active_interfaces_atomic(mvm->hw, + IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_bound_iface_iterator, + &data); + + /* If changed_vif exists and is not to be removed, add to the count */ + if (changed_vif && !remove_vif) + data.num_active_macs++; + + switch (data.num_active_macs) { + case 0: + /* If there are no active macs - change state to SF_INIT_OFF */ + new_state = SF_INIT_OFF; + break; + case 1: + if (remove_vif) { + /* The one active mac left is of type station + * and we filled the relevant data during iteration + */ + new_state = data.sta_vif_state; + sta_id = data.sta_vif_ap_sta_id; + } else { + if (WARN_ON(!changed_vif)) + return -EINVAL; + if (changed_vif->type != NL80211_IFTYPE_STATION) { + new_state = SF_UNINIT; + } else if (changed_vif->bss_conf.assoc && + changed_vif->bss_conf.dtim_period) { + mvmvif = iwl_mvm_vif_from_mac80211(changed_vif); + sta_id = mvmvif->ap_sta_id; + new_state = SF_FULL_ON; + } else { + new_state = SF_INIT_OFF; + } + } + break; + default: + /* If there are multiple active macs - change to SF_UNINIT */ + new_state = SF_UNINIT; + } + return iwl_mvm_sf_config(mvm, sta_id, new_state); +} diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c index 5c664ed5440..1fb01ea2e70 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.c +++ b/drivers/net/wireless/iwlwifi/mvm/sta.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -64,20 +64,32 @@ #include "mvm.h" #include "sta.h" +#include "rs.h" -static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm) +static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm, + enum nl80211_iftype iftype) { int sta_id; + u32 reserved_ids = 0; + BUILD_BUG_ON(IWL_MVM_STATION_COUNT > 32); WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)); lockdep_assert_held(&mvm->mutex); + /* d0i3/d3 assumes the AP's sta_id (of sta vif) is 0. reserve it. */ + if (iftype != NL80211_IFTYPE_STATION) + reserved_ids = BIT(0); + /* Don't take rcu_read_lock() since we are protected by mvm->mutex */ - for (sta_id = 0; sta_id < IWL_MVM_STATION_COUNT; sta_id++) + for (sta_id = 0; sta_id < IWL_MVM_STATION_COUNT; sta_id++) { + if (BIT(sta_id) & reserved_ids) + continue; + if (!rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], lockdep_is_held(&mvm->mutex))) return sta_id; + } return IWL_MVM_STATION_COUNT; } @@ -203,7 +215,8 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) - sta_id = iwl_mvm_find_free_sta_id(mvm); + sta_id = iwl_mvm_find_free_sta_id(mvm, + ieee80211_vif_type_p2p(vif)); else sta_id = mvm_sta->sta_id; @@ -217,6 +230,8 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm, mvmvif->color); mvm_sta->vif = vif; mvm_sta->max_agg_bufsize = LINK_QUAL_AGG_FRAME_LIMIT_DEF; + mvm_sta->tx_protection = 0; + mvm_sta->tt_tx_protection = false; /* HW restart, don't assume the memory has been zeroed */ atomic_set(&mvm->pending_frames[sta_id], 0); @@ -226,11 +241,12 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm, if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE) mvm_sta->tfd_queue_msk |= BIT(vif->hw_queue[i]); - if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE) - mvm_sta->tfd_queue_msk |= BIT(vif->cab_queue); - - /* for HW restart - need to reset the seq_number etc... */ - memset(mvm_sta->tid_data, 0, sizeof(mvm_sta->tid_data)); + /* for HW restart - reset everything but the sequence number */ + for (i = 0; i < IWL_MAX_TID_COUNT; i++) { + u16 seq = mvm_sta->tid_data[i].seq_number; + memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i])); + mvm_sta->tid_data[i].seq_number = seq; + } ret = iwl_mvm_sta_send_to_fw(mvm, sta, false); if (ret) @@ -311,7 +327,7 @@ static int iwl_mvm_rm_sta_common(struct iwl_mvm *mvm, u8 sta_id) return -EINVAL; } - ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, CMD_SYNC, + ret = iwl_mvm_send_cmd_pdu(mvm, REMOVE_STA, 0, sizeof(rm_sta_cmd), &rm_sta_cmd); if (ret) { IWL_ERR(mvm, "Failed to remove station. Id=%d\n", sta_id); @@ -341,8 +357,15 @@ void iwl_mvm_sta_drained_wk(struct work_struct *wk) rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id], lockdep_is_held(&mvm->mutex)); - /* This station is in use */ - if (!IS_ERR(sta)) + /* + * This station is in use or RCU-removed; the latter happens in + * managed mode, where mac80211 removes the station before we + * can remove it from firmware (we can only do that after the + * MAC is marked unassociated), and possibly while the deauth + * frame to disconnect from the AP is still queued. Then, the + * station pointer is -ENOENT when the last skb is reclaimed. + */ + if (!IS_ERR(sta) || PTR_ERR(sta) == -ENOENT) continue; if (PTR_ERR(sta) == -EINVAL) { @@ -368,7 +391,7 @@ void iwl_mvm_sta_drained_wk(struct work_struct *wk) sta_id); continue; } - rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], NULL); + RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); clear_bit(sta_id, mvm->sta_drained); } @@ -390,20 +413,16 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm, /* flush its queues here since we are freeing mvm_sta */ ret = iwl_mvm_flush_tx_path(mvm, mvm_sta->tfd_queue_msk, true); - /* - * Put a non-NULL since the fw station isn't removed. - * It will be removed after the MAC will be set as - * unassoc. - */ - rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], - ERR_PTR(-EINVAL)); - /* if we are associated - we can't remove the AP STA now */ if (vif->bss_conf.assoc) return ret; /* unassoc - go ahead - remove the AP STA now */ mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT; + + /* clear d0i3_ap_sta_id if no longer relevant */ + if (mvm->d0i3_ap_sta_id == mvm_sta->sta_id) + mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT; } /* @@ -423,7 +442,7 @@ int iwl_mvm_rm_sta(struct iwl_mvm *mvm, } else { spin_unlock_bh(&mvm_sta->lock); ret = iwl_mvm_rm_sta_common(mvm, mvm_sta->sta_id); - rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); + RCU_INIT_POINTER(mvm->fw_id_to_mac_id[mvm_sta->sta_id], NULL); } return ret; @@ -437,15 +456,15 @@ int iwl_mvm_rm_sta_id(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); - rcu_assign_pointer(mvm->fw_id_to_mac_id[sta_id], NULL); + RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta_id], NULL); return ret; } int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta, - u32 qmask) + u32 qmask, enum nl80211_iftype iftype) { if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { - sta->sta_id = iwl_mvm_find_free_sta_id(mvm); + sta->sta_id = iwl_mvm_find_free_sta_id(mvm, iftype); if (WARN_ON_ONCE(sta->sta_id == IWL_MVM_STATION_COUNT)) return -ENOSPC; } @@ -459,7 +478,7 @@ int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta, void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta) { - rcu_assign_pointer(mvm->fw_id_to_mac_id[sta->sta_id], NULL); + RCU_INIT_POINTER(mvm->fw_id_to_mac_id[sta->sta_id], NULL); memset(sta, 0, sizeof(struct iwl_mvm_int_sta)); sta->sta_id = IWL_MVM_STATION_COUNT; } @@ -475,7 +494,7 @@ static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); - memset(&cmd, 0, sizeof(struct iwl_mvm_add_sta_cmd)); + memset(&cmd, 0, sizeof(cmd)); cmd.sta_id = sta->sta_id; cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id, color)); @@ -510,7 +529,8 @@ int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm) lockdep_assert_held(&mvm->mutex); /* Add the aux station, but without any queues */ - ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, 0); + ret = iwl_mvm_allocate_int_sta(mvm, &mvm->aux_sta, 0, + NL80211_IFTYPE_UNSPECIFIED); if (ret) return ret; @@ -534,10 +554,14 @@ int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct iwl_mvm_int_sta *bsta) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); - static const u8 baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; + static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; + const u8 *baddr = _baddr; lockdep_assert_held(&mvm->mutex); + if (vif->type == NL80211_IFTYPE_ADHOC) + baddr = vif->bss_conf.bssid; + if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_STATION_COUNT)) return -ENOSPC; @@ -578,7 +602,8 @@ int iwl_mvm_add_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, lockdep_assert_held(&mvm->mutex); qmask = iwl_mvm_mac_get_queues_mask(mvm, vif); - ret = iwl_mvm_allocate_int_sta(mvm, bsta, qmask); + ret = iwl_mvm_allocate_int_sta(mvm, bsta, qmask, + ieee80211_vif_type_p2p(vif)); if (ret) return ret; @@ -608,6 +633,8 @@ int iwl_mvm_rm_bcast_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *bsta) return ret; } +#define IWL_MAX_RX_BA_SESSIONS 16 + int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int tid, u16 ssn, bool start) { @@ -618,11 +645,20 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, lockdep_assert_held(&mvm->mutex); + if (start && mvm->rx_ba_sessions >= IWL_MAX_RX_BA_SESSIONS) { + IWL_WARN(mvm, "Not enough RX BA SESSIONS\n"); + return -ENOSPC; + } + cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); cmd.sta_id = mvm_sta->sta_id; cmd.add_modify = STA_MODE_MODIFY; - cmd.add_immediate_ba_tid = (u8) tid; - cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); + if (start) { + cmd.add_immediate_ba_tid = (u8) tid; + cmd.add_immediate_ba_ssn = cpu_to_le16(ssn); + } else { + cmd.remove_immediate_ba_tid = (u8) tid; + } cmd.modify_mask = start ? STA_MODIFY_ADD_BA_TID : STA_MODIFY_REMOVE_BA_TID; @@ -648,6 +684,14 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, break; } + if (!ret) { + if (start) + mvm->rx_ba_sessions++; + else if (mvm->rx_ba_sessions > 0) + /* check that restart flow didn't zero the counter */ + mvm->rx_ba_sessions--; + } + return ret; } @@ -695,7 +739,7 @@ static int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, return ret; } -static const u8 tid_to_ac[] = { +const u8 tid_to_mac80211_ac[] = { IEEE80211_AC_BE, IEEE80211_AC_BK, IEEE80211_AC_BK, @@ -706,10 +750,21 @@ static const u8 tid_to_ac[] = { IEEE80211_AC_VO, }; +static const u8 tid_to_ucode_ac[] = { + AC_BE, + AC_BK, + AC_BK, + AC_BE, + AC_VI, + AC_VI, + AC_VO, + AC_VO, +}; + int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid, u16 *ssn) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_tid_data *tid_data; int txq_id; @@ -724,21 +779,29 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, lockdep_assert_held(&mvm->mutex); - for (txq_id = IWL_MVM_FIRST_AGG_QUEUE; - txq_id <= IWL_MVM_LAST_AGG_QUEUE; txq_id++) + for (txq_id = mvm->first_agg_queue; + txq_id <= mvm->last_agg_queue; txq_id++) if (mvm->queue_to_mac80211[txq_id] == IWL_INVALID_MAC80211_QUEUE) break; - if (txq_id > IWL_MVM_LAST_AGG_QUEUE) { + if (txq_id > mvm->last_agg_queue) { IWL_ERR(mvm, "Failed to allocate agg queue\n"); return -EIO; } + spin_lock_bh(&mvmsta->lock); + + /* possible race condition - we entered D0i3 while starting agg */ + if (test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)) { + spin_unlock_bh(&mvmsta->lock); + IWL_ERR(mvm, "Entered D0i3 while starting Tx agg\n"); + return -EIO; + } + /* the new tx queue is still connected to the same mac80211 queue */ - mvm->queue_to_mac80211[txq_id] = vif->hw_queue[tid_to_ac[tid]]; + mvm->queue_to_mac80211[txq_id] = vif->hw_queue[tid_to_mac80211_ac[tid]]; - spin_lock_bh(&mvmsta->lock); tid_data = &mvmsta->tid_data[tid]; tid_data->ssn = IEEE80211_SEQ_TO_SN(tid_data->seq_number); tid_data->txq_id = txq_id; @@ -764,7 +827,7 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif, int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid, u8 buf_size) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; int queue, fifo, ret; u16 ssn; @@ -778,7 +841,7 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, tid_data->ssn = 0xffff; spin_unlock_bh(&mvmsta->lock); - fifo = iwl_mvm_ac_to_tx_fifo[tid_to_ac[tid]]; + fifo = iwl_mvm_ac_to_tx_fifo[tid_to_mac80211_ac[tid]]; ret = iwl_mvm_sta_tx_agg(mvm, sta, tid, queue, true); if (ret) @@ -798,28 +861,16 @@ int iwl_mvm_sta_tx_agg_oper(struct iwl_mvm *mvm, struct ieee80211_vif *vif, min(mvmsta->max_agg_bufsize, buf_size); mvmsta->lq_sta.lq.agg_frame_cnt_limit = mvmsta->max_agg_bufsize; - if (mvm->cfg->ht_params->use_rts_for_aggregation) { - /* - * switch to RTS/CTS if it is the prefer protection - * method for HT traffic - */ - mvmsta->lq_sta.lq.flags |= LQ_FLAG_SET_STA_TLC_RTS_MSK; - /* - * TODO: remove the TLC_RTS flag when we tear down the last - * AGG session (agg_tids_count in DVM) - */ - } - IWL_DEBUG_HT(mvm, "Tx aggregation enabled on ra = %pM tid = %d\n", sta->addr, tid); - return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.lq, CMD_ASYNC, false); + return iwl_mvm_send_lq_cmd(mvm, &mvmsta->lq_sta.lq, false); } int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; u16 txq_id; int err; @@ -891,9 +942,10 @@ int iwl_mvm_sta_tx_agg_stop(struct iwl_mvm *mvm, struct ieee80211_vif *vif, int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, struct ieee80211_sta *sta, u16 tid) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; u16 txq_id; + enum iwl_mvm_agg_state old_state; /* * First set the agg state to OFF to avoid calling @@ -903,13 +955,17 @@ int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, txq_id = tid_data->txq_id; IWL_DEBUG_TX_QUEUES(mvm, "Flush AGG: sta %d tid %d q %d state %d\n", mvmsta->sta_id, tid, txq_id, tid_data->state); + old_state = tid_data->state; tid_data->state = IWL_AGG_OFF; spin_unlock_bh(&mvmsta->lock); - if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), true)) - IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); + if (old_state >= IWL_AGG_ON) { + if (iwl_mvm_flush_tx_path(mvm, BIT(txq_id), true)) + IWL_ERR(mvm, "Couldn't flush the AGG queue\n"); + + iwl_trans_txq_disable(mvm->trans, tid_data->txq_id); + } - iwl_trans_txq_disable(mvm->trans, tid_data->txq_id); mvm->queue_to_mac80211[tid_data->txq_id] = IWL_INVALID_MAC80211_QUEUE; @@ -961,8 +1017,8 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, u8 sta_id, u32 tkip_iv32, u16 *tkip_p1k, u32 cmd_flags) { + struct iwl_mvm_add_sta_key_cmd cmd = {}; __le16 key_flags; - struct iwl_mvm_add_sta_cmd cmd = {}; int ret, status; u16 keyidx; int i; @@ -975,37 +1031,34 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm, switch (keyconf->cipher) { case WLAN_CIPHER_SUITE_TKIP: key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP); - cmd.key.tkip_rx_tsc_byte2 = tkip_iv32; + cmd.tkip_rx_tsc_byte2 = tkip_iv32; for (i = 0; i < 5; i++) - cmd.key.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]); - memcpy(cmd.key.key, keyconf->key, keyconf->keylen); + cmd.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]); + memcpy(cmd.key, keyconf->key, keyconf->keylen); break; case WLAN_CIPHER_SUITE_CCMP: key_flags |= cpu_to_le16(STA_KEY_FLG_CCM); - memcpy(cmd.key.key, keyconf->key, keyconf->keylen); + memcpy(cmd.key, keyconf->key, keyconf->keylen); break; default: - WARN_ON(1); - return -EINVAL; + key_flags |= cpu_to_le16(STA_KEY_FLG_EXT); + memcpy(cmd.key, keyconf->key, keyconf->keylen); } if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) key_flags |= cpu_to_le16(STA_KEY_MULTICAST); - cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); - cmd.key.key_offset = keyconf->hw_key_idx; - cmd.key.key_flags = key_flags; - cmd.add_modify = STA_MODE_MODIFY; - cmd.modify_mask = STA_MODIFY_KEY; + cmd.key_offset = keyconf->hw_key_idx; + cmd.key_flags = key_flags; cmd.sta_id = sta_id; status = ADD_STA_SUCCESS; - if (cmd_flags == CMD_SYNC) - ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd), - &cmd, &status); + if (cmd_flags & CMD_ASYNC) + ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, CMD_ASYNC, + sizeof(cmd), &cmd); else - ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, - sizeof(cmd), &cmd); + ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, sizeof(cmd), + &cmd, &status); switch (status) { case ADD_STA_SUCCESS: @@ -1058,7 +1111,7 @@ static int iwl_mvm_send_sta_igtk(struct iwl_mvm *mvm, remove_key ? "removing" : "installing", igtk_cmd.sta_id); - return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, CMD_SYNC, + return iwl_mvm_send_cmd_pdu(mvm, MGMT_MCAST_KEY, 0, sizeof(igtk_cmd), &igtk_cmd); } @@ -1145,15 +1198,15 @@ int iwl_mvm_set_sta_key(struct iwl_mvm *mvm, ieee80211_get_key_rx_seq(keyconf, 0, &seq); ieee80211_get_tkip_rx_p1k(keyconf, addr, seq.tkip.iv32, p1k); ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, sta_id, - seq.tkip.iv32, p1k, CMD_SYNC); + seq.tkip.iv32, p1k, 0); break; case WLAN_CIPHER_SUITE_CCMP: ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, sta_id, - 0, NULL, CMD_SYNC); + 0, NULL, 0); break; default: - IWL_ERR(mvm, "Unknown cipher %x\n", keyconf->cipher); - ret = -EINVAL; + ret = iwl_mvm_send_sta_key(mvm, mvm_sta, keyconf, + sta_id, 0, NULL, 0); } if (ret) @@ -1172,7 +1225,7 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, struct ieee80211_key_conf *keyconf) { struct iwl_mvm_sta *mvm_sta; - struct iwl_mvm_add_sta_cmd cmd = {}; + struct iwl_mvm_add_sta_key_cmd cmd = {}; __le16 key_flags; int ret, status; u8 sta_id; @@ -1227,16 +1280,12 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm, if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE)) key_flags |= cpu_to_le16(STA_KEY_MULTICAST); - cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color); - cmd.key.key_flags = key_flags; - cmd.key.key_offset = keyconf->hw_key_idx; + cmd.key_flags = key_flags; + cmd.key_offset = keyconf->hw_key_idx; cmd.sta_id = sta_id; - cmd.modify_mask = STA_MODIFY_KEY; - cmd.add_modify = STA_MODE_MODIFY; - status = ADD_STA_SUCCESS; - ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd), + ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY, sizeof(cmd), &cmd, &status); switch (status) { @@ -1283,21 +1332,15 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, struct ieee80211_sta *sta) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_add_sta_cmd cmd = { .add_modify = STA_MODE_MODIFY, .sta_id = mvmsta->sta_id, - .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, - .sleep_state_flags = cpu_to_le16(STA_SLEEP_STATE_AWAKE), + .station_flags_msk = cpu_to_le32(STA_FLG_PS), .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), }; int ret; - /* - * Same modify mask for sleep_tx_count and sleep_state_flags but this - * should be fine since if we set the STA as "awake", then - * sleep_tx_count is not relevant. - */ ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, sizeof(cmd), &cmd); if (ret) IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); @@ -1306,28 +1349,102 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, struct ieee80211_sta *sta, enum ieee80211_frame_release_type reason, - u16 cnt) + u16 cnt, u16 tids, bool more_data, + bool agg) { - u16 sleep_state_flags = - (reason == IEEE80211_FRAME_RELEASE_UAPSD) ? - STA_SLEEP_STATE_UAPSD : STA_SLEEP_STATE_PS_POLL; - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_add_sta_cmd cmd = { .add_modify = STA_MODE_MODIFY, .sta_id = mvmsta->sta_id, .modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT, .sleep_tx_count = cpu_to_le16(cnt), .mac_id_n_color = cpu_to_le32(mvmsta->mac_id_n_color), - /* - * Same modify mask for sleep_tx_count and sleep_state_flags so - * we must set the sleep_state_flags too. - */ - .sleep_state_flags = cpu_to_le16(sleep_state_flags), }; - int ret; + int tid, ret; + unsigned long _tids = tids; + + /* convert TIDs to ACs - we don't support TSPEC so that's OK + * Note that this field is reserved and unused by firmware not + * supporting GO uAPSD, so it's safe to always do this. + */ + for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) + cmd.awake_acs |= BIT(tid_to_ucode_ac[tid]); + + /* If we're releasing frames from aggregation queues then check if the + * all queues combined that we're releasing frames from have + * - more frames than the service period, in which case more_data + * needs to be set + * - fewer than 'cnt' frames, in which case we need to adjust the + * firmware command (but do that unconditionally) + */ + if (agg) { + int remaining = cnt; + + spin_lock_bh(&mvmsta->lock); + for_each_set_bit(tid, &_tids, IWL_MAX_TID_COUNT) { + struct iwl_mvm_tid_data *tid_data; + u16 n_queued; + + tid_data = &mvmsta->tid_data[tid]; + if (WARN(tid_data->state != IWL_AGG_ON && + tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA, + "TID %d state is %d\n", + tid, tid_data->state)) { + spin_unlock_bh(&mvmsta->lock); + ieee80211_sta_eosp(sta); + return; + } + + n_queued = iwl_mvm_tid_queued(tid_data); + if (n_queued > remaining) { + more_data = true; + remaining = 0; + break; + } + remaining -= n_queued; + } + spin_unlock_bh(&mvmsta->lock); + + cmd.sleep_tx_count = cpu_to_le16(cnt - remaining); + if (WARN_ON(cnt - remaining == 0)) { + ieee80211_sta_eosp(sta); + return; + } + } + + /* Note: this is ignored by firmware not supporting GO uAPSD */ + if (more_data) + cmd.sleep_state_flags |= cpu_to_le16(STA_SLEEP_STATE_MOREDATA); + + if (reason == IEEE80211_FRAME_RELEASE_PSPOLL) { + mvmsta->next_status_eosp = true; + cmd.sleep_state_flags |= cpu_to_le16(STA_SLEEP_STATE_PS_POLL); + } else { + cmd.sleep_state_flags |= cpu_to_le16(STA_SLEEP_STATE_UAPSD); + } - /* TODO: somehow the fw doesn't seem to take PS_POLL into account */ ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, sizeof(cmd), &cmd); if (ret) IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret); } + +int iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd) +{ + struct iwl_rx_packet *pkt = rxb_addr(rxb); + struct iwl_mvm_eosp_notification *notif = (void *)pkt->data; + struct ieee80211_sta *sta; + u32 sta_id = le32_to_cpu(notif->sta_id); + + if (WARN_ON_ONCE(sta_id >= IWL_MVM_STATION_COUNT)) + return 0; + + rcu_read_lock(); + sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); + if (!IS_ERR_OR_NULL(sta)) + ieee80211_sta_eosp(sta); + rcu_read_unlock(); + + return 0; +} diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h index a4ddce77aaa..d98e8a2142b 100644 --- a/drivers/net/wireless/iwlwifi/mvm/sta.h +++ b/drivers/net/wireless/iwlwifi/mvm/sta.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -195,24 +195,33 @@ struct iwl_mvm; /** * DOC: AP mode - PS * - * When a station is asleep, the fw will set it as "asleep". All the - * non-aggregation frames to that station will be dropped by the fw - * (%TX_STATUS_FAIL_DEST_PS failure code). + * When a station is asleep, the fw will set it as "asleep". All frames on + * shared queues (i.e. non-aggregation queues) to that station will be dropped + * by the fw (%TX_STATUS_FAIL_DEST_PS failure code). + * * AMPDUs are in a separate queue that is stopped by the fw. We just need to - * let mac80211 know how many frames we have in these queues so that it can + * let mac80211 know when there are frames in these queues so that it can * properly handle trigger frames. - * When the a trigger frame is received, mac80211 tells the driver to send - * frames from the AMPDU queues or AC queue depending on which queue are - * delivery-enabled and what TID has frames to transmit (Note that mac80211 has - * all the knowledege since all the non-agg frames are buffered / filtered, and - * the driver tells mac80211 about agg frames). The driver needs to tell the fw - * to let frames out even if the station is asleep. This is done by - * %iwl_mvm_sta_modify_sleep_tx_count. - * When we receive a frame from that station with PM bit unset, the - * driver needs to let the fw know that this station isn't alseep any more. - * This is done by %iwl_mvm_sta_modify_ps_wake. - * - * TODO - EOSP handling + * + * When a trigger frame is received, mac80211 tells the driver to send frames + * from the AMPDU queues or sends frames to non-aggregation queues itself, + * depending on which ACs are delivery-enabled and what TID has frames to + * transmit. Note that mac80211 has all the knowledege since all the non-agg + * frames are buffered / filtered, and the driver tells mac80211 about agg + * frames). The driver needs to tell the fw to let frames out even if the + * station is asleep. This is done by %iwl_mvm_sta_modify_sleep_tx_count. + * + * When we receive a frame from that station with PM bit unset, the driver + * needs to let the fw know that this station isn't asleep any more. This is + * done by %iwl_mvm_sta_modify_ps_wake in response to mac80211 signalling the + * station's wakeup. + * + * For a GO, the Service Period might be cut short due to an absence period + * of the GO. In this (and all other cases) the firmware notifies us with the + * EOSP_NOTIFICATION, and we notify mac80211 of that. Further frames that we + * already sent to the device will be rejected again. + * + * See also "AP support for powersaving clients" in mac80211.h. */ /** @@ -244,25 +253,32 @@ enum iwl_mvm_agg_state { * This is basically (last acked packet++). * @rate_n_flags: Rate at which Tx was attempted. Holds the data between the * Tx response (TX_CMD), and the block ack notification (COMPRESSED_BA). + * @reduced_tpc: Reduced tx power. Holds the data between the + * Tx response (TX_CMD), and the block ack notification (COMPRESSED_BA). * @state: state of the BA agreement establishment / tear down. * @txq_id: Tx queue used by the BA session * @ssn: the first packet to be sent in AGG HW queue in Tx AGG start flow, or * the first packet to be sent in legacy HW queue in Tx AGG stop flow. * Basically when next_reclaimed reaches ssn, we can tell mac80211 that * we are ready to finish the Tx AGG stop / start flow. - * @wait_for_ba: Expect block-ack before next Tx reply */ struct iwl_mvm_tid_data { u16 seq_number; u16 next_reclaimed; /* The rest is Tx AGG related */ u32 rate_n_flags; + u8 reduced_tpc; enum iwl_mvm_agg_state state; u16 txq_id; u16 ssn; - bool wait_for_ba; }; +static inline u16 iwl_mvm_tid_queued(struct iwl_mvm_tid_data *tid_data) +{ + return ieee80211_sn_sub(IEEE80211_SEQ_TO_SN(tid_data->seq_number), + tid_data->next_reclaimed); +} + /** * struct iwl_mvm_sta - representation of a station in the driver * @sta_id: the index of the station in the fw (will be replaced by id_n_color) @@ -272,9 +288,13 @@ struct iwl_mvm_tid_data { * tid. * @max_agg_bufsize: the maximal size of the AGG buffer for this station * @bt_reduced_txpower: is reduced tx power enabled for this station + * @next_status_eosp: the next reclaimed packet is a PS-Poll response and + * we need to signal the EOSP * @lock: lock to protect the whole struct. Since %tid_data is access from Tx * and from Tx response flow, it needs a spinlock. * @tid_data: per tid data. Look at %iwl_mvm_tid_data. + * @tx_protection: reference counter for controlling the Tx protection. + * @tt_tx_protection: is thermal throttling enable Tx protection? * * When mac80211 creates a station it reserves some space (hw->sta_data_size) * in the structure for use by driver. This structure is placed in that @@ -288,16 +308,23 @@ struct iwl_mvm_sta { u16 tid_disable_agg; u8 max_agg_bufsize; bool bt_reduced_txpower; + bool next_status_eosp; spinlock_t lock; struct iwl_mvm_tid_data tid_data[IWL_MAX_TID_COUNT]; struct iwl_lq_sta lq_sta; struct ieee80211_vif *vif; -#ifdef CONFIG_PM_SLEEP - u16 last_seq_ctl; -#endif + /* Temporary, until the new TLC will control the Tx protection */ + s8 tx_protection; + bool tt_tx_protection; }; +static inline struct iwl_mvm_sta * +iwl_mvm_sta_from_mac80211(struct ieee80211_sta *sta) +{ + return (void *)sta->drv_priv; +} + /** * struct iwl_mvm_int_sta - representation of an internal station (auxiliary or * broadcast) @@ -339,6 +366,10 @@ void iwl_mvm_update_tkip_key(struct iwl_mvm *mvm, struct ieee80211_sta *sta, u32 iv32, u16 *phase1key); +int iwl_mvm_rx_eosp_notif(struct iwl_mvm *mvm, + struct iwl_rx_cmd_buffer *rxb, + struct iwl_device_cmd *cmd); + /* AMPDU */ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta, int tid, u16 ssn, bool start); @@ -353,7 +384,7 @@ int iwl_mvm_sta_tx_agg_flush(struct iwl_mvm *mvm, struct ieee80211_vif *vif, int iwl_mvm_add_aux_sta(struct iwl_mvm *mvm); int iwl_mvm_allocate_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta, - u32 qmask); + u32 qmask, enum nl80211_iftype iftype); void iwl_mvm_dealloc_int_sta(struct iwl_mvm *mvm, struct iwl_mvm_int_sta *sta); int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, @@ -369,7 +400,8 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm, void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm, struct ieee80211_sta *sta, enum ieee80211_frame_release_type reason, - u16 cnt); + u16 cnt, u16 tids, bool more_data, + bool agg); int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta, bool drain); diff --git a/drivers/net/wireless/iwlwifi/mvm/testmode.h b/drivers/net/wireless/iwlwifi/mvm/testmode.h new file mode 100644 index 00000000000..0241665925f --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/testmode.h @@ -0,0 +1,95 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +#ifndef __IWL_MVM_TESTMODE_H__ +#define __IWL_MVM_TESTMODE_H__ + +/** + * enum iwl_mvm_testmode_attrs - testmode attributes inside NL80211_ATTR_TESTDATA + * @IWL_MVM_TM_ATTR_UNSPEC: (invalid attribute) + * @IWL_MVM_TM_ATTR_CMD: sub command, see &enum iwl_mvm_testmode_commands (u32) + * @IWL_MVM_TM_ATTR_NOA_DURATION: requested NoA duration (u32) + * @IWL_MVM_TM_ATTR_BEACON_FILTER_STATE: beacon filter state (0 or 1, u32) + */ +enum iwl_mvm_testmode_attrs { + IWL_MVM_TM_ATTR_UNSPEC, + IWL_MVM_TM_ATTR_CMD, + IWL_MVM_TM_ATTR_NOA_DURATION, + IWL_MVM_TM_ATTR_BEACON_FILTER_STATE, + + /* keep last */ + NUM_IWL_MVM_TM_ATTRS, + IWL_MVM_TM_ATTR_MAX = NUM_IWL_MVM_TM_ATTRS - 1, +}; + +/** + * enum iwl_mvm_testmode_commands - MVM testmode commands + * @IWL_MVM_TM_CMD_SET_NOA: set NoA on GO vif for testing + * @IWL_MVM_TM_CMD_SET_BEACON_FILTER: turn beacon filtering off/on + */ +enum iwl_mvm_testmode_commands { + IWL_MVM_TM_CMD_SET_NOA, + IWL_MVM_TM_CMD_SET_BEACON_FILTER, +}; + +#endif /* __IWL_MVM_TESTMODE_H__ */ diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c index ad9bbca9921..80100f6cc12 100644 --- a/drivers/net/wireless/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -73,7 +73,6 @@ #include "iwl-prph.h" /* A TimeUnit is 1024 microsecond */ -#define TU_TO_JIFFIES(_tu) (usecs_to_jiffies((_tu) * 1024)) #define MSEC_TO_TU(_msec) (_msec*1000/1024) /* @@ -127,6 +126,7 @@ static void iwl_mvm_roc_finished(struct iwl_mvm *mvm) * in iwl_mvm_te_handle_notif). */ clear_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status); + iwl_mvm_unref(mvm, IWL_MVM_REF_ROC); /* * Of course, our status bit is just as racy as mac80211, so in @@ -138,6 +138,20 @@ static void iwl_mvm_roc_finished(struct iwl_mvm *mvm) schedule_work(&mvm->roc_done_wk); } +static bool iwl_mvm_te_check_disconnect(struct iwl_mvm *mvm, + struct ieee80211_vif *vif, + const char *errmsg) +{ + if (vif->type != NL80211_IFTYPE_STATION) + return false; + if (vif->bss_conf.assoc && vif->bss_conf.dtim_period) + return false; + if (errmsg) + IWL_ERR(mvm, "%s\n", errmsg); + ieee80211_connection_loss(vif); + return true; +} + /* * Handles a FW notification for an event that is known to the driver. * @@ -163,10 +177,18 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm, * P2P Device discoveribility, while there are other higher priority * events in the system). */ - WARN_ONCE(!le32_to_cpu(notif->status), - "Failed to schedule time event\n"); + if (!le32_to_cpu(notif->status)) { + bool start = le32_to_cpu(notif->action) & + TE_V2_NOTIF_HOST_EVENT_START; + IWL_WARN(mvm, "Time Event %s notification failure\n", + start ? "start" : "end"); + if (iwl_mvm_te_check_disconnect(mvm, te_data->vif, NULL)) { + iwl_mvm_te_clear_data(mvm, te_data); + return; + } + } - if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_END) { + if (le32_to_cpu(notif->action) & TE_V2_NOTIF_HOST_EVENT_END) { IWL_DEBUG_TE(mvm, "TE ended - current time %lu, estimated end %lu\n", jiffies, te_data->end_jiffies); @@ -180,22 +202,16 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm, * By now, we should have finished association * and know the dtim period. */ - if (te_data->vif->type == NL80211_IFTYPE_STATION && - (!te_data->vif->bss_conf.assoc || - !te_data->vif->bss_conf.dtim_period)) { - IWL_ERR(mvm, - "No assocation and the time event is over already...\n"); - ieee80211_connection_loss(te_data->vif); - } - + iwl_mvm_te_check_disconnect(mvm, te_data->vif, + "No association and the time event is over already..."); iwl_mvm_te_clear_data(mvm, te_data); - } else if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_START) { + } else if (le32_to_cpu(notif->action) & TE_V2_NOTIF_HOST_EVENT_START) { te_data->running = true; - te_data->end_jiffies = jiffies + - TU_TO_JIFFIES(te_data->duration); + te_data->end_jiffies = TU_TO_EXP_TIME(te_data->duration); if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) { set_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status); + iwl_mvm_ref(mvm, IWL_MVM_REF_ROC); ieee80211_ready_on_channel(mvm->hw); } } else { @@ -235,12 +251,12 @@ static bool iwl_mvm_time_event_response(struct iwl_notif_wait_data *notif_wait, container_of(notif_wait, struct iwl_mvm, notif_wait); struct iwl_mvm_time_event_data *te_data = data; struct iwl_time_event_resp *resp; - int resp_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; + int resp_len = iwl_rx_packet_payload_len(pkt); if (WARN_ON(pkt->hdr.cmd != TIME_EVENT_CMD)) return true; - if (WARN_ON_ONCE(resp_len != sizeof(pkt->hdr) + sizeof(*resp))) { + if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { IWL_ERR(mvm, "Invalid TIME_EVENT_CMD response\n"); return true; } @@ -296,8 +312,8 @@ static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm, ARRAY_SIZE(time_event_response), iwl_mvm_time_event_response, te_data); - ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC, - sizeof(*te_cmd), te_cmd); + ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, 0, + sizeof(*te_cmd), te_cmd); if (ret) { IWL_ERR(mvm, "Couldn't send TIME_EVENT_CMD: %d\n", ret); iwl_remove_notification(&mvm->notif_wait, &wait_time_event); @@ -320,7 +336,8 @@ static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm, void iwl_mvm_protect_session(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - u32 duration, u32 min_duration) + u32 duration, u32 min_duration, + u32 max_delay) { struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data; @@ -329,8 +346,7 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm, lockdep_assert_held(&mvm->mutex); if (te_data->running && - time_after(te_data->end_jiffies, - jiffies + TU_TO_JIFFIES(min_duration))) { + time_after(te_data->end_jiffies, TU_TO_EXP_TIME(min_duration))) { IWL_DEBUG_TE(mvm, "We have enough time in the current TE: %u\n", jiffies_to_msecs(te_data->end_jiffies - jiffies)); return; @@ -359,17 +375,15 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm, time_cmd.apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG)); - time_cmd.dep_policy = TE_INDEPENDENT; - time_cmd.is_present = cpu_to_le32(1); - time_cmd.max_frags = cpu_to_le32(TE_FRAG_NONE); - time_cmd.max_delay = cpu_to_le32(500); + time_cmd.max_frags = TE_V2_FRAG_NONE; + time_cmd.max_delay = cpu_to_le32(max_delay); /* TODO: why do we need to interval = bi if it is not periodic? */ time_cmd.interval = cpu_to_le32(1); - time_cmd.interval_reciprocal = cpu_to_le32(iwl_mvm_reciprocal(1)); time_cmd.duration = cpu_to_le32(duration); - time_cmd.repeat = cpu_to_le32(1); - time_cmd.notify = cpu_to_le32(TE_NOTIF_HOST_EVENT_START | - TE_NOTIF_HOST_EVENT_END); + time_cmd.repeat = 1; + time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START | + TE_V2_NOTIF_HOST_EVENT_END | + T2_V2_START_IMMEDIATELY); iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd); } @@ -420,7 +434,7 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm, cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color)); IWL_DEBUG_TE(mvm, "Removing TE 0x%x\n", le32_to_cpu(time_cmd.id)); - ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC, + ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, 0, sizeof(time_cmd), &time_cmd); if (WARN_ON(ret)) return; @@ -472,8 +486,6 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, } time_cmd.apply_time = cpu_to_le32(0); - time_cmd.dep_policy = cpu_to_le32(TE_INDEPENDENT); - time_cmd.is_present = cpu_to_le32(1); time_cmd.interval = cpu_to_le32(1); /* @@ -482,12 +494,13 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif, * scheduled. To improve the chances of it being scheduled, allow them * to be fragmented, and in addition allow them to be delayed. */ - time_cmd.max_frags = cpu_to_le32(MSEC_TO_TU(duration)/20); + time_cmd.max_frags = min(MSEC_TO_TU(duration)/50, TE_V2_FRAG_ENDLESS); time_cmd.max_delay = cpu_to_le32(MSEC_TO_TU(duration/2)); time_cmd.duration = cpu_to_le32(MSEC_TO_TU(duration)); - time_cmd.repeat = cpu_to_le32(1); - time_cmd.notify = cpu_to_le32(TE_NOTIF_HOST_EVENT_START | - TE_NOTIF_HOST_EVENT_END); + time_cmd.repeat = 1; + time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START | + TE_V2_NOTIF_HOST_EVENT_END | + T2_V2_START_IMMEDIATELY); return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd); } diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.h b/drivers/net/wireless/iwlwifi/mvm/time-event.h index f86c51065ed..4a61c8c0237 100644 --- a/drivers/net/wireless/iwlwifi/mvm/time-event.h +++ b/drivers/net/wireless/iwlwifi/mvm/time-event.h @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -123,6 +123,7 @@ * @duration: the duration of the session in TU. * @min_duration: will start a new session if the current session will end * in less than min_duration. + * @max_delay: maximum delay before starting the time event (in TU) * * This function can be used to start a session protection which means that the * fw will stay on the channel for %duration_ms milliseconds. This function @@ -133,7 +134,8 @@ */ void iwl_mvm_protect_session(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - u32 duration, u32 min_duration); + u32 duration, u32 min_duration, + u32 max_delay); /** * iwl_mvm_stop_session_protection - cancel the session protection. diff --git a/drivers/net/wireless/iwlwifi/mvm/tt.c b/drivers/net/wireless/iwlwifi/mvm/tt.c new file mode 100644 index 00000000000..86856151278 --- /dev/null +++ b/drivers/net/wireless/iwlwifi/mvm/tt.c @@ -0,0 +1,560 @@ +/****************************************************************************** + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2013 - 2014 Intel Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, + * USA + * + * The full GNU General Public License is included in this distribution + * in the file called COPYING. + * + * Contact Information: + * Intel Linux Wireless <ilw@linux.intel.com> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + * BSD LICENSE + * + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + *****************************************************************************/ + +#include "mvm.h" +#include "iwl-config.h" +#include "iwl-io.h" +#include "iwl-csr.h" +#include "iwl-prph.h" + +#define OTP_DTS_DIODE_DEVIATION 96 /*in words*/ +/* VBG - Voltage Band Gap error data (temperature offset) */ +#define OTP_WP_DTS_VBG (OTP_DTS_DIODE_DEVIATION + 2) +#define MEAS_VBG_MIN_VAL 2300 +#define MEAS_VBG_MAX_VAL 3000 +#define MEAS_VBG_DEFAULT_VAL 2700 +#define DTS_DIODE_VALID(flags) (flags & DTS_DIODE_REG_FLAGS_PASS_ONCE) +#define MIN_TEMPERATURE 0 +#define MAX_TEMPERATURE 125 +#define TEMPERATURE_ERROR (MAX_TEMPERATURE + 1) +#define PTAT_DIGITAL_VALUE_MIN_VALUE 0 +#define PTAT_DIGITAL_VALUE_MAX_VALUE 0xFF +#define DTS_VREFS_NUM 5 +static inline u32 DTS_DIODE_GET_VREFS_ID(u32 flags) +{ + return (flags & DTS_DIODE_REG_FLAGS_VREFS_ID) >> + DTS_DIODE_REG_FLAGS_VREFS_ID_POS; +} + +#define CALC_VREFS_MIN_DIFF 43 +#define CALC_VREFS_MAX_DIFF 51 +#define CALC_LUT_SIZE (1 + CALC_VREFS_MAX_DIFF - CALC_VREFS_MIN_DIFF) +#define CALC_LUT_INDEX_OFFSET CALC_VREFS_MIN_DIFF +#define CALC_TEMPERATURE_RESULT_SHIFT_OFFSET 23 + +/* + * @digital_value: The diode's digital-value sampled (temperature/voltage) + * @vref_low: The lower voltage-reference (the vref just below the diode's + * sampled digital-value) + * @vref_high: The higher voltage-reference (the vref just above the diode's + * sampled digital-value) + * @flags: bits[1:0]: The ID of the Vrefs pair (lowVref,highVref) + * bits[6:2]: Reserved. + * bits[7:7]: Indicates completion of at least 1 successful sample + * since last DTS reset. + */ +struct iwl_mvm_dts_diode_bits { + u8 digital_value; + u8 vref_low; + u8 vref_high; + u8 flags; +} __packed; + +union dts_diode_results { + u32 reg_value; + struct iwl_mvm_dts_diode_bits bits; +} __packed; + +static s16 iwl_mvm_dts_get_volt_band_gap(struct iwl_mvm *mvm) +{ + struct iwl_nvm_section calib_sec; + const __le16 *calib; + u16 vbg; + + /* TODO: move parsing to NVM code */ + calib_sec = mvm->nvm_sections[NVM_SECTION_TYPE_CALIBRATION]; + calib = (__le16 *)calib_sec.data; + + vbg = le16_to_cpu(calib[OTP_WP_DTS_VBG]); + + if (vbg < MEAS_VBG_MIN_VAL || vbg > MEAS_VBG_MAX_VAL) + vbg = MEAS_VBG_DEFAULT_VAL; + + return vbg; +} + +static u16 iwl_mvm_dts_get_ptat_deviation_offset(struct iwl_mvm *mvm) +{ + const u8 *calib; + u8 ptat, pa1, pa2, median; + + /* TODO: move parsing to NVM code */ + calib = mvm->nvm_sections[NVM_SECTION_TYPE_CALIBRATION].data; + ptat = calib[OTP_DTS_DIODE_DEVIATION]; + pa1 = calib[OTP_DTS_DIODE_DEVIATION + 1]; + pa2 = calib[OTP_DTS_DIODE_DEVIATION + 2]; + + /* get the median: */ + if (ptat > pa1) { + if (ptat > pa2) + median = (pa1 > pa2) ? pa1 : pa2; + else + median = ptat; + } else { + if (pa1 > pa2) + median = (ptat > pa2) ? ptat : pa2; + else + median = pa1; + } + + return ptat - median; +} + +static u8 iwl_mvm_dts_calibrate_ptat_deviation(struct iwl_mvm *mvm, u8 value) +{ + /* Calibrate the PTAT digital value, based on PTAT deviation data: */ + s16 new_val = value - iwl_mvm_dts_get_ptat_deviation_offset(mvm); + + if (new_val > PTAT_DIGITAL_VALUE_MAX_VALUE) + new_val = PTAT_DIGITAL_VALUE_MAX_VALUE; + else if (new_val < PTAT_DIGITAL_VALUE_MIN_VALUE) + new_val = PTAT_DIGITAL_VALUE_MIN_VALUE; + + return new_val; +} + +static bool dts_get_adjacent_vrefs(struct iwl_mvm *mvm, + union dts_diode_results *avg_ptat) +{ + u8 vrefs_results[DTS_VREFS_NUM]; + u8 low_vref_index = 0, flags; + u32 reg; + + reg = iwl_read_prph(mvm->trans, DTSC_VREF_AVG); + memcpy(vrefs_results, ®, sizeof(reg)); + reg = iwl_read_prph(mvm->trans, DTSC_VREF5_AVG); + vrefs_results[4] = reg & 0xff; + + if (avg_ptat->bits.digital_value < vrefs_results[0] || + avg_ptat->bits.digital_value > vrefs_results[4]) + return false; + + if (avg_ptat->bits.digital_value > vrefs_results[3]) + low_vref_index = 3; + else if (avg_ptat->bits.digital_value > vrefs_results[2]) + low_vref_index = 2; + else if (avg_ptat->bits.digital_value > vrefs_results[1]) + low_vref_index = 1; + + avg_ptat->bits.vref_low = vrefs_results[low_vref_index]; + avg_ptat->bits.vref_high = vrefs_results[low_vref_index + 1]; + flags = avg_ptat->bits.flags; + avg_ptat->bits.flags = + (flags & ~DTS_DIODE_REG_FLAGS_VREFS_ID) | + (low_vref_index & DTS_DIODE_REG_FLAGS_VREFS_ID); + return true; +} + +/* + * return true it the results are valid, and false otherwise. + */ +static bool dts_read_ptat_avg_results(struct iwl_mvm *mvm, + union dts_diode_results *avg_ptat) +{ + u32 reg; + u8 tmp; + + /* fill the diode value and pass_once with avg-reg results */ + reg = iwl_read_prph(mvm->trans, DTSC_PTAT_AVG); + reg &= DTS_DIODE_REG_DIG_VAL | DTS_DIODE_REG_PASS_ONCE; + avg_ptat->reg_value = reg; + + /* calibrate the PTAT digital value */ + tmp = avg_ptat->bits.digital_value; + tmp = iwl_mvm_dts_calibrate_ptat_deviation(mvm, tmp); + avg_ptat->bits.digital_value = tmp; + + /* + * fill vrefs fields, based on the avgVrefs results + * and the diode value + */ + return dts_get_adjacent_vrefs(mvm, avg_ptat) && + DTS_DIODE_VALID(avg_ptat->bits.flags); +} + +static s32 calculate_nic_temperature(union dts_diode_results avg_ptat, + u16 volt_band_gap) +{ + u32 tmp_result; + u8 vrefs_diff; + /* + * For temperature calculation (at the end, shift right by 23) + * LUT[(D2-D1)] = ROUND{ 2^23 / ((D2-D1)*9*10) } + * (D2-D1) == 43 44 45 46 47 48 49 50 51 + */ + static const u16 calc_lut[CALC_LUT_SIZE] = { + 2168, 2118, 2071, 2026, 1983, 1942, 1902, 1864, 1828, + }; + + /* + * The diff between the high and low voltage-references is assumed + * to be strictly be in range of [60,68] + */ + vrefs_diff = avg_ptat.bits.vref_high - avg_ptat.bits.vref_low; + + if (vrefs_diff < CALC_VREFS_MIN_DIFF || + vrefs_diff > CALC_VREFS_MAX_DIFF) + return TEMPERATURE_ERROR; + + /* calculate the result: */ + tmp_result = + vrefs_diff * (DTS_DIODE_GET_VREFS_ID(avg_ptat.bits.flags) + 9); + tmp_result += avg_ptat.bits.digital_value; + tmp_result -= avg_ptat.bits.vref_high; + + /* multiply by the LUT value (based on the diff) */ + tmp_result *= calc_lut[vrefs_diff - CALC_LUT_INDEX_OFFSET]; + + /* + * Get the BandGap (the voltage refereces source) error data + * (temperature offset) + */ + tmp_result *= volt_band_gap; + + /* + * here, tmp_result value can be up to 32-bits. We want to right-shift + * it *without* sign-extend. + */ + tmp_result = tmp_result >> CALC_TEMPERATURE_RESULT_SHIFT_OFFSET; + + /* + * at this point, tmp_result should be in the range: + * 200 <= tmp_result <= 365 + */ + return (s16)tmp_result - 240; +} + +static s32 check_nic_temperature(struct iwl_mvm *mvm) +{ + u16 volt_band_gap; + union dts_diode_results avg_ptat; + + volt_band_gap = iwl_mvm_dts_get_volt_band_gap(mvm); + + /* disable DTS */ + iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 0); + + /* SV initialization */ + iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 1); + iwl_write_prph(mvm->trans, DTSC_CFG_MODE, + DTSC_CFG_MODE_PERIODIC); + + /* wait for results */ + msleep(100); + if (!dts_read_ptat_avg_results(mvm, &avg_ptat)) + return TEMPERATURE_ERROR; + + /* disable DTS */ + iwl_write_prph(mvm->trans, SHR_MISC_WFM_DTS_EN, 0); + + return calculate_nic_temperature(avg_ptat, volt_band_gap); +} + +static void iwl_mvm_enter_ctkill(struct iwl_mvm *mvm) +{ + u32 duration = mvm->thermal_throttle.params->ct_kill_duration; + + IWL_ERR(mvm, "Enter CT Kill\n"); + iwl_mvm_set_hw_ctkill_state(mvm, true); + schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit, + round_jiffies_relative(duration * HZ)); +} + +static void iwl_mvm_exit_ctkill(struct iwl_mvm *mvm) +{ + IWL_ERR(mvm, "Exit CT Kill\n"); + iwl_mvm_set_hw_ctkill_state(mvm, false); +} + +static void check_exit_ctkill(struct work_struct *work) +{ + struct iwl_mvm_tt_mgmt *tt; + struct iwl_mvm *mvm; + u32 duration; + s32 temp; + + tt = container_of(work, struct iwl_mvm_tt_mgmt, ct_kill_exit.work); + mvm = container_of(tt, struct iwl_mvm, thermal_throttle); + + duration = tt->params->ct_kill_duration; + + iwl_trans_start_hw(mvm->trans); + temp = check_nic_temperature(mvm); + iwl_trans_stop_device(mvm->trans); + + if (temp < MIN_TEMPERATURE || temp > MAX_TEMPERATURE) { + IWL_DEBUG_TEMP(mvm, "Failed to measure NIC temperature\n"); + goto reschedule; + } + IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", temp); + + if (temp <= tt->params->ct_kill_exit) { + iwl_mvm_exit_ctkill(mvm); + return; + } + +reschedule: + schedule_delayed_work(&mvm->thermal_throttle.ct_kill_exit, + round_jiffies(duration * HZ)); +} + +static void iwl_mvm_tt_smps_iterator(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm *mvm = _data; + enum ieee80211_smps_mode smps_mode; + + lockdep_assert_held(&mvm->mutex); + + if (mvm->thermal_throttle.dynamic_smps) + smps_mode = IEEE80211_SMPS_DYNAMIC; + else + smps_mode = IEEE80211_SMPS_AUTOMATIC; + + if (vif->type != NL80211_IFTYPE_STATION) + return; + + iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT, smps_mode); +} + +static void iwl_mvm_tt_tx_protection(struct iwl_mvm *mvm, bool enable) +{ + struct ieee80211_sta *sta; + struct iwl_mvm_sta *mvmsta; + int i, err; + + for (i = 0; i < IWL_MVM_STATION_COUNT; i++) { + sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i], + lockdep_is_held(&mvm->mutex)); + if (IS_ERR_OR_NULL(sta)) + continue; + mvmsta = iwl_mvm_sta_from_mac80211(sta); + if (enable == mvmsta->tt_tx_protection) + continue; + err = iwl_mvm_tx_protection(mvm, mvmsta, enable); + if (err) { + IWL_ERR(mvm, "Failed to %s Tx protection\n", + enable ? "enable" : "disable"); + } else { + IWL_DEBUG_TEMP(mvm, "%s Tx protection\n", + enable ? "Enable" : "Disable"); + mvmsta->tt_tx_protection = enable; + } + } +} + +void iwl_mvm_tt_tx_backoff(struct iwl_mvm *mvm, u32 backoff) +{ + struct iwl_host_cmd cmd = { + .id = REPLY_THERMAL_MNG_BACKOFF, + .len = { sizeof(u32), }, + .data = { &backoff, }, + }; + + backoff = max(backoff, mvm->thermal_throttle.min_backoff); + + if (iwl_mvm_send_cmd(mvm, &cmd) == 0) { + IWL_DEBUG_TEMP(mvm, "Set Thermal Tx backoff to: %u\n", + backoff); + mvm->thermal_throttle.tx_backoff = backoff; + } else { + IWL_ERR(mvm, "Failed to change Thermal Tx backoff\n"); + } +} + +void iwl_mvm_tt_handler(struct iwl_mvm *mvm) +{ + const struct iwl_tt_params *params = mvm->thermal_throttle.params; + struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; + s32 temperature = mvm->temperature; + bool throttle_enable = false; + int i; + u32 tx_backoff; + + IWL_DEBUG_TEMP(mvm, "NIC temperature: %d\n", mvm->temperature); + + if (params->support_ct_kill && temperature >= params->ct_kill_entry) { + iwl_mvm_enter_ctkill(mvm); + return; + } + + if (params->support_dynamic_smps) { + if (!tt->dynamic_smps && + temperature >= params->dynamic_smps_entry) { + IWL_DEBUG_TEMP(mvm, "Enable dynamic SMPS\n"); + tt->dynamic_smps = true; + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_tt_smps_iterator, mvm); + throttle_enable = true; + } else if (tt->dynamic_smps && + temperature <= params->dynamic_smps_exit) { + IWL_DEBUG_TEMP(mvm, "Disable dynamic SMPS\n"); + tt->dynamic_smps = false; + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_tt_smps_iterator, mvm); + } + } + + if (params->support_tx_protection) { + if (temperature >= params->tx_protection_entry) { + iwl_mvm_tt_tx_protection(mvm, true); + throttle_enable = true; + } else if (temperature <= params->tx_protection_exit) { + iwl_mvm_tt_tx_protection(mvm, false); + } + } + + if (params->support_tx_backoff) { + tx_backoff = tt->min_backoff; + for (i = 0; i < TT_TX_BACKOFF_SIZE; i++) { + if (temperature < params->tx_backoff[i].temperature) + break; + tx_backoff = max(tt->min_backoff, + params->tx_backoff[i].backoff); + } + if (tx_backoff != tt->min_backoff) + throttle_enable = true; + if (tt->tx_backoff != tx_backoff) + iwl_mvm_tt_tx_backoff(mvm, tx_backoff); + } + + if (!tt->throttle && throttle_enable) { + IWL_WARN(mvm, + "Due to high temperature thermal throttling initiated\n"); + tt->throttle = true; + } else if (tt->throttle && !tt->dynamic_smps && + tt->tx_backoff == tt->min_backoff && + temperature <= params->tx_protection_exit) { + IWL_WARN(mvm, + "Temperature is back to normal thermal throttling stopped\n"); + tt->throttle = false; + } +} + +static const struct iwl_tt_params iwl7000_tt_params = { + .ct_kill_entry = 118, + .ct_kill_exit = 96, + .ct_kill_duration = 5, + .dynamic_smps_entry = 114, + .dynamic_smps_exit = 110, + .tx_protection_entry = 114, + .tx_protection_exit = 108, + .tx_backoff = { + {.temperature = 112, .backoff = 200}, + {.temperature = 113, .backoff = 600}, + {.temperature = 114, .backoff = 1200}, + {.temperature = 115, .backoff = 2000}, + {.temperature = 116, .backoff = 4000}, + {.temperature = 117, .backoff = 10000}, + }, + .support_ct_kill = true, + .support_dynamic_smps = true, + .support_tx_protection = true, + .support_tx_backoff = true, +}; + +static const struct iwl_tt_params iwl7000_high_temp_tt_params = { + .ct_kill_entry = 118, + .ct_kill_exit = 96, + .ct_kill_duration = 5, + .dynamic_smps_entry = 114, + .dynamic_smps_exit = 110, + .tx_protection_entry = 114, + .tx_protection_exit = 108, + .tx_backoff = { + {.temperature = 112, .backoff = 300}, + {.temperature = 113, .backoff = 800}, + {.temperature = 114, .backoff = 1500}, + {.temperature = 115, .backoff = 3000}, + {.temperature = 116, .backoff = 5000}, + {.temperature = 117, .backoff = 10000}, + }, + .support_ct_kill = true, + .support_dynamic_smps = true, + .support_tx_protection = true, + .support_tx_backoff = true, +}; + +void iwl_mvm_tt_initialize(struct iwl_mvm *mvm, u32 min_backoff) +{ + struct iwl_mvm_tt_mgmt *tt = &mvm->thermal_throttle; + + IWL_DEBUG_TEMP(mvm, "Initialize Thermal Throttling\n"); + + if (mvm->cfg->high_temp) + tt->params = &iwl7000_high_temp_tt_params; + else + tt->params = &iwl7000_tt_params; + + tt->throttle = false; + tt->min_backoff = min_backoff; + INIT_DELAYED_WORK(&tt->ct_kill_exit, check_exit_ctkill); +} + +void iwl_mvm_tt_exit(struct iwl_mvm *mvm) +{ + cancel_delayed_work_sync(&mvm->thermal_throttle.ct_kill_exit); + IWL_DEBUG_TEMP(mvm, "Exit Thermal Throttling\n"); +} diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c index f212f16502f..3846a6c41eb 100644 --- a/drivers/net/wireless/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/iwlwifi/mvm/tx.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -79,6 +79,7 @@ static void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, __le16 fc = hdr->frame_control; u32 tx_flags = le32_to_cpu(tx_cmd->tx_flags); u32 len = skb->len + FCS_LEN; + u8 ac; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) tx_flags |= TX_CMD_FLG_ACK; @@ -90,14 +91,6 @@ static void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, else if (ieee80211_is_back_req(fc)) tx_flags |= TX_CMD_FLG_ACK | TX_CMD_FLG_BAR; - /* High prio packet (wrt. BT coex) if it is EAPOL, MCAST or MGMT */ - if (info->band == IEEE80211_BAND_2GHZ && - (skb->protocol == cpu_to_be16(ETH_P_PAE) || - is_multicast_ether_addr(hdr->addr1) || - ieee80211_is_back_req(fc) || - ieee80211_is_mgmt(fc))) - tx_flags |= TX_CMD_FLG_BT_DIS; - if (ieee80211_has_morefrags(fc)) tx_flags |= TX_CMD_FLG_MORE_FRAG; @@ -113,6 +106,11 @@ static void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, tx_flags &= ~TX_CMD_FLG_SEQ_CTL; } + /* tid_tspec will default to 0 = BE when QOS isn't enabled */ + ac = tid_to_mac80211_ac[tx_cmd->tid_tspec]; + tx_flags |= iwl_mvm_bt_coex_tx_prio(mvm, hdr, info, ac) << + TX_CMD_FLG_BT_PRIO_POS; + if (ieee80211_is_mgmt(fc)) { if (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc)) tx_cmd->pm_frame_timeout = cpu_to_le16(3); @@ -123,13 +121,12 @@ static void iwl_mvm_set_tx_cmd(struct iwl_mvm *mvm, struct sk_buff *skb, * it */ WARN_ON_ONCE(info->flags & IEEE80211_TX_CTL_AMPDU); + } else if (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO) { + tx_cmd->pm_frame_timeout = cpu_to_le16(2); } else { tx_cmd->pm_frame_timeout = 0; } - if (info->flags & IEEE80211_TX_CTL_AMPDU) - tx_flags |= TX_CMD_FLG_PROT_REQUIRE; - if (ieee80211_is_data(fc) && len > mvm->rts_threshold && !is_multicast_ether_addr(ieee80211_get_DA(hdr))) tx_flags |= TX_CMD_FLG_PROT_REQUIRE; @@ -171,16 +168,17 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, } /* - * for data packets, rate info comes from the table inside he fw. This + * for data packets, rate info comes from the table inside the fw. This * table is controlled by LINK_QUALITY commands */ - if (ieee80211_is_data(fc)) { + if (ieee80211_is_data(fc) && sta) { tx_cmd->initial_rate_index = 0; tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE); return; } else if (ieee80211_is_back_req(fc)) { - tx_cmd->tx_flags |= cpu_to_le32(TX_CMD_FLG_STA_RATE); + tx_cmd->tx_flags |= + cpu_to_le32(TX_CMD_FLG_ACK | TX_CMD_FLG_BAR); } /* HT rate doesn't make sense for a non data frame */ @@ -205,7 +203,7 @@ static void iwl_mvm_set_tx_cmd_rate(struct iwl_mvm *mvm, rate_plcp = iwl_mvm_mac80211_idx_to_hwrate(rate_idx); mvm->mgmt_last_antenna_idx = - iwl_mvm_next_antenna(mvm, iwl_fw_valid_tx_ant(mvm->fw), + iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant, mvm->mgmt_last_antenna_idx); rate_flags = BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS; @@ -251,8 +249,7 @@ static void iwl_mvm_set_tx_cmd_crypto(struct iwl_mvm *mvm, memcpy(&tx_cmd->key[3], keyconf->key, keyconf->keylen); break; default: - IWL_ERR(mvm, "Unknown encode cipher %x\n", keyconf->cipher); - break; + tx_cmd->sec_ctl |= TX_CMD_SEC_EXT; } } @@ -274,6 +271,7 @@ iwl_mvm_set_tx_params(struct iwl_mvm *mvm, struct sk_buff *skb, return NULL; memset(dev_cmd, 0, sizeof(*dev_cmd)); + dev_cmd->hdr.cmd = TX_CMD; tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload; if (info->control.hw_key) @@ -359,7 +357,7 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, u8 txq_id = info->hw_queue; bool is_data_qos = false, is_ampdu = false; - mvmsta = (void *)sta->drv_priv; + mvmsta = iwl_mvm_sta_from_mac80211(sta); fc = hdr->frame_control; if (WARN_ON_ONCE(!mvmsta)) @@ -375,6 +373,13 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, tx_cmd = (struct iwl_tx_cmd *)dev_cmd->payload; /* From now on, we cannot access info->control */ + /* + * we handle that entirely ourselves -- for uAPSD the firmware + * will always send a notification, and for PS-Poll responses + * we'll notify mac80211 when getting frame status + */ + info->flags &= ~IEEE80211_TX_STATUS_EOSP; + spin_lock(&mvmsta->lock); if (ieee80211_is_data_qos(fc) && !ieee80211_is_qos_nullfunc(fc)) { @@ -388,7 +393,6 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, seq_number &= IEEE80211_SCTL_SEQ; hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); hdr->seq_ctrl |= cpu_to_le16(seq_number); - seq_number += 0x10; is_data_qos = true; is_ampdu = info->flags & IEEE80211_TX_CTL_AMPDU; } @@ -405,18 +409,17 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb, } IWL_DEBUG_TX(mvm, "TX to [%d|%d] Q:%d - seq: 0x%x\n", mvmsta->sta_id, - tid, txq_id, seq_number); + tid, txq_id, IEEE80211_SEQ_TO_SN(seq_number)); - /* NOTE: aggregation will need changes here (for txq id) */ if (iwl_trans_tx(mvm->trans, skb, dev_cmd, txq_id)) goto drop_unlock_sta; if (is_data_qos && !ieee80211_has_morefrags(fc)) - mvmsta->tid_data[tid].seq_number = seq_number; + mvmsta->tid_data[tid].seq_number = seq_number + 0x10; spin_unlock(&mvmsta->lock); - if (txq_id < IWL_MVM_FIRST_AGG_QUEUE) + if (txq_id < mvm->first_agg_queue) atomic_inc(&mvm->pending_frames[mvmsta->sta_id]); return 0; @@ -431,12 +434,23 @@ drop: static void iwl_mvm_check_ratid_empty(struct iwl_mvm *mvm, struct ieee80211_sta *sta, u8 tid) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid]; struct ieee80211_vif *vif = mvmsta->vif; lockdep_assert_held(&mvmsta->lock); + if ((tid_data->state == IWL_AGG_ON || + tid_data->state == IWL_EMPTYING_HW_QUEUE_DELBA) && + iwl_mvm_tid_queued(tid_data) == 0) { + /* + * Now that this aggregation queue is empty tell mac80211 so it + * knows we no longer have frames buffered for the station on + * this TID (for the TIM bitmap calculation.) + */ + ieee80211_sta_set_buffered(sta, tid, false); + } + if (tid_data->ssn != tid_data->next_reclaimed) return; @@ -510,16 +524,10 @@ const char *iwl_mvm_get_tx_fail_reason(u32 status) } #endif /* CONFIG_IWLWIFI_DEBUG */ -/** - * translate ucode response to mac80211 tx status control values - */ -static void iwl_mvm_hwrate_to_tx_control(u32 rate_n_flags, - struct ieee80211_tx_info *info) +void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags, + enum ieee80211_band band, + struct ieee80211_tx_rate *r) { - struct ieee80211_tx_rate *r = &info->status.rates[0]; - - info->status.antenna = - ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); if (rate_n_flags & RATE_HT_MCS_GF_MSK) r->flags |= IEEE80211_TX_RC_GREEN_FIELD; switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) { @@ -548,10 +556,23 @@ static void iwl_mvm_hwrate_to_tx_control(u32 rate_n_flags, r->flags |= IEEE80211_TX_RC_VHT_MCS; } else { r->idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags, - info->band); + band); } } +/** + * translate ucode response to mac80211 tx status control values + */ +static void iwl_mvm_hwrate_to_tx_status(u32 rate_n_flags, + struct ieee80211_tx_info *info) +{ + struct ieee80211_tx_rate *r = &info->status.rates[0]; + + info->status.antenna = + ((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS); + iwl_mvm_hwrate_to_tx_rate(rate_n_flags, info->band, r); +} + static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, struct iwl_rx_packet *pkt) { @@ -601,24 +622,28 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, } info->status.rates[0].count = tx_resp->failure_frame + 1; - iwl_mvm_hwrate_to_tx_control(le32_to_cpu(tx_resp->initial_rate), - info); + iwl_mvm_hwrate_to_tx_status(le32_to_cpu(tx_resp->initial_rate), + info); /* Single frame failure in an AMPDU queue => send BAR */ - if (txq_id >= IWL_MVM_FIRST_AGG_QUEUE && + if (txq_id >= mvm->first_agg_queue && !(info->flags & IEEE80211_TX_STAT_ACK)) info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK; - /* W/A FW bug: seq_ctl is wrong when the queue is flushed */ - if (status == TX_STATUS_FAIL_FIFO_FLUSHED) { + /* W/A FW bug: seq_ctl is wrong when the status isn't success */ + if (status != TX_STATUS_SUCCESS) { struct ieee80211_hdr *hdr = (void *)skb->data; seq_ctl = le16_to_cpu(hdr->seq_ctrl); } - ieee80211_tx_status_ni(mvm->hw, skb); + BUILD_BUG_ON(ARRAY_SIZE(info->status.status_driver_data) < 1); + info->status.status_driver_data[0] = + (void *)(uintptr_t)tx_resp->reduced_tpc; + + ieee80211_tx_status(mvm->hw, skb); } - if (txq_id >= IWL_MVM_FIRST_AGG_QUEUE) { + if (txq_id >= mvm->first_agg_queue) { /* If this is an aggregation queue, we use the ssn since: * ssn = wifi seq_num % 256. * The seq_ctl is the sequence control of the packet to which @@ -652,9 +677,15 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, rcu_read_lock(); sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); + /* + * sta can't be NULL otherwise it'd mean that the sta has been freed in + * the firmware while we still have packets for it in the Tx queues. + */ + if (WARN_ON_ONCE(!sta)) + goto out; - if (!IS_ERR_OR_NULL(sta)) { - mvmsta = (void *)sta->drv_priv; + if (!IS_ERR(sta)) { + mvmsta = iwl_mvm_sta_from_mac80211(sta); if (tid != IWL_TID_NON_QOS) { struct iwl_mvm_tid_data *tid_data = @@ -668,11 +699,11 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, spin_unlock_bh(&mvmsta->lock); } -#ifdef CONFIG_PM_SLEEP - mvmsta->last_seq_ctl = seq_ctl; -#endif + if (mvmsta->next_status_eosp) { + mvmsta->next_status_eosp = false; + ieee80211_sta_eosp(sta); + } } else { - sta = NULL; mvmsta = NULL; } @@ -680,42 +711,38 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm, * If the txq is not an AMPDU queue, there is no chance we freed * several skbs. Check that out... */ - if (txq_id < IWL_MVM_FIRST_AGG_QUEUE && !WARN_ON(skb_freed > 1) && - atomic_sub_and_test(skb_freed, &mvm->pending_frames[sta_id])) { - if (mvmsta) { - /* - * If there are no pending frames for this STA, notify - * mac80211 that this station can go to sleep in its - * STA table. - */ - if (mvmsta->vif->type == NL80211_IFTYPE_AP) - ieee80211_sta_block_awake(mvm->hw, sta, false); - /* - * We might very well have taken mvmsta pointer while - * the station was being removed. The remove flow might - * have seen a pending_frame (because we didn't take - * the lock) even if now the queues are drained. So make - * really sure now that this the station is not being - * removed. If it is, run the drain worker to remove it. - */ - spin_lock_bh(&mvmsta->lock); - sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); - if (IS_ERR_OR_NULL(sta)) { - /* - * Station disappeared in the meantime: - * so we are draining. - */ - set_bit(sta_id, mvm->sta_drained); - schedule_work(&mvm->sta_drained_wk); - } - spin_unlock_bh(&mvmsta->lock); - } else if (!mvmsta) { - /* Tx response without STA, so we are draining */ - set_bit(sta_id, mvm->sta_drained); - schedule_work(&mvm->sta_drained_wk); - } + if (txq_id >= mvm->first_agg_queue) + goto out; + + /* We can't free more than one frame at once on a shared queue */ + WARN_ON(skb_freed > 1); + + /* If we have still frames from this STA nothing to do here */ + if (!atomic_sub_and_test(skb_freed, &mvm->pending_frames[sta_id])) + goto out; + + if (mvmsta && mvmsta->vif->type == NL80211_IFTYPE_AP) { + /* + * If there are no pending frames for this STA, notify + * mac80211 that this station can go to sleep in its + * STA table. + * If mvmsta is not NULL, sta is valid. + */ + ieee80211_sta_block_awake(mvm->hw, sta, false); } + if (PTR_ERR(sta) == -EBUSY || PTR_ERR(sta) == -ENOENT) { + /* + * We are draining and this was the last packet - pre_rcu_remove + * has been called already. We might be after the + * synchronize_net already. + * Don't rely on iwl_mvm_rm_sta to see the empty Tx queues. + */ + set_bit(sta_id, mvm->sta_drained); + schedule_work(&mvm->sta_drained_wk); + } + +out: rcu_read_unlock(); } @@ -776,7 +803,7 @@ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm, u16 sequence = le16_to_cpu(pkt->hdr.sequence); struct ieee80211_sta *sta; - if (WARN_ON_ONCE(SEQ_TO_QUEUE(sequence) < IWL_MVM_FIRST_AGG_QUEUE)) + if (WARN_ON_ONCE(SEQ_TO_QUEUE(sequence) < mvm->first_agg_queue)) return; if (WARN_ON_ONCE(tid == IWL_TID_NON_QOS)) @@ -789,9 +816,10 @@ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm, sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_id]); if (!WARN_ON_ONCE(IS_ERR_OR_NULL(sta))) { - struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv; + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); mvmsta->tid_data[tid].rate_n_flags = le32_to_cpu(tx_resp->initial_rate); + mvmsta->tid_data[tid].reduced_tpc = tx_resp->reduced_tpc; } rcu_read_unlock(); @@ -818,16 +846,12 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_mvm_ba_notif *ba_notif = (void *)pkt->data; struct sk_buff_head reclaimed_skbs; struct iwl_mvm_tid_data *tid_data; - struct ieee80211_tx_info *info; struct ieee80211_sta *sta; struct iwl_mvm_sta *mvmsta; - struct ieee80211_hdr *hdr; struct sk_buff *skb; int sta_id, tid, freed; - /* "flow" corresponds to Tx queue */ u16 scd_flow = le16_to_cpu(ba_notif->scd_flow); - /* "ssn" is start of block-ack Tx window, corresponds to index * (in Tx queue's circular buffer) of first TFD/frame in window */ u16 ba_resp_scd_ssn = le16_to_cpu(ba_notif->scd_ssn); @@ -845,7 +869,7 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, return 0; } - mvmsta = (void *)sta->drv_priv; + mvmsta = iwl_mvm_sta_from_mac80211(sta); tid_data = &mvmsta->tid_data[tid]; if (WARN_ONCE(tid_data->txq_id != scd_flow, "Q %d, tid %d, flow %d", @@ -884,27 +908,33 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, freed = 0; skb_queue_walk(&reclaimed_skbs, skb) { - hdr = (struct ieee80211_hdr *)skb->data; + struct ieee80211_hdr *hdr = (void *)skb->data; + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); if (ieee80211_is_data_qos(hdr->frame_control)) freed++; else WARN_ON_ONCE(1); - info = IEEE80211_SKB_CB(skb); iwl_trans_free_tx_cmd(mvm->trans, info->driver_data[1]); + memset(&info->status, 0, sizeof(info->status)); + /* Packet was transmitted successfully, failures come as single + * frames because before failing a frame the firmware transmits + * it without aggregation at least once. + */ + info->flags |= IEEE80211_TX_STAT_ACK; + if (freed == 1) { /* this is the first skb we deliver in this batch */ /* put the rate scaling data there */ - info = IEEE80211_SKB_CB(skb); - memset(&info->status, 0, sizeof(info->status)); - info->flags |= IEEE80211_TX_STAT_ACK; info->flags |= IEEE80211_TX_STAT_AMPDU; info->status.ampdu_ack_len = ba_notif->txed_2_done; info->status.ampdu_len = ba_notif->txed; - iwl_mvm_hwrate_to_tx_control(tid_data->rate_n_flags, - info); + iwl_mvm_hwrate_to_tx_status(tid_data->rate_n_flags, + info); + info->status.status_driver_data[0] = + (void *)(uintptr_t)tid_data->reduced_tpc; } } @@ -914,7 +944,7 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, while (!skb_queue_empty(&reclaimed_skbs)) { skb = __skb_dequeue(&reclaimed_skbs); - ieee80211_tx_status_ni(mvm->hw, skb); + ieee80211_tx_status(mvm->hw, skb); } return 0; @@ -928,7 +958,7 @@ int iwl_mvm_flush_tx_path(struct iwl_mvm *mvm, u32 tfd_msk, bool sync) .flush_ctl = cpu_to_le16(DUMP_TX_FIFO_FLUSH), }; - u32 flags = sync ? CMD_SYNC : CMD_ASYNC; + u32 flags = sync ? 0 : CMD_ASYNC; ret = iwl_mvm_send_cmd_pdu(mvm, TXPATH_FLUSH, flags, sizeof(flush_cmd), &flush_cmd); diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c index 687b34e387a..aa9fc77e841 100644 --- a/drivers/net/wireless/iwlwifi/mvm/utils.c +++ b/drivers/net/wireless/iwlwifi/mvm/utils.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -64,6 +64,7 @@ #include "iwl-debug.h" #include "iwl-io.h" +#include "iwl-prph.h" #include "mvm.h" #include "fw-api-rs.h" @@ -76,6 +77,11 @@ int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) { int ret; +#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) + if (WARN_ON(mvm->d3_test_active)) + return -EIO; +#endif + /* * Synchronous commands from this op-mode must hold * the mutex, this ensures we don't try to send two @@ -125,6 +131,11 @@ int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, lockdep_assert_held(&mvm->mutex); +#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) + if (WARN_ON(mvm->d3_test_active)) + return -EIO; +#endif + /* * Only synchronous commands can wait for status, * we use WANT_SKB so the caller can't. @@ -133,7 +144,7 @@ int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, "cmd flags %x", cmd->flags)) return -EINVAL; - cmd->flags |= CMD_SYNC | CMD_WANT_SKB; + cmd->flags |= CMD_WANT_SKB; ret = iwl_trans_send_cmd(mvm->trans, cmd); if (ret == -ERFKILL) { @@ -158,8 +169,8 @@ int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, goto out_free_resp; } - resp_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; - if (WARN_ON_ONCE(resp_len != sizeof(pkt->hdr) + sizeof(*resp))) { + resp_len = iwl_rx_packet_payload_len(pkt); + if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { ret = -EIO; goto out_free_resp; } @@ -279,8 +290,8 @@ u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) return last_idx; } -static struct { - char *name; +static const struct { + const char *name; u8 num; } advanced_lookup[] = { { "NMI_INTERRUPT_WDG", 0x34 }, @@ -366,9 +377,67 @@ struct iwl_error_event_table { u32 flow_handler; /* FH read/write pointers, RX credit */ } __packed; +/* + * UMAC error struct - relevant starting from family 8000 chip. + * Note: This structure is read from the device with IO accesses, + * and the reading already does the endian conversion. As it is + * read with u32-sized accesses, any members with a different size + * need to be ordered correctly though! + */ +struct iwl_umac_error_event_table { + u32 valid; /* (nonzero) valid, (0) log is empty */ + u32 error_id; /* type of error */ + u32 pc; /* program counter */ + u32 blink1; /* branch link */ + u32 blink2; /* branch link */ + u32 ilink1; /* interrupt link */ + u32 ilink2; /* interrupt link */ + u32 data1; /* error-specific data */ + u32 data2; /* error-specific data */ + u32 line; /* source code line of error */ + u32 umac_ver; /* umac version */ +} __packed; + #define ERROR_START_OFFSET (1 * sizeof(u32)) #define ERROR_ELEM_SIZE (7 * sizeof(u32)) +static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) +{ + struct iwl_trans *trans = mvm->trans; + struct iwl_umac_error_event_table table; + u32 base; + + base = mvm->umac_error_event_table; + + if (base < 0x800000 || base >= 0x80C000) { + IWL_ERR(mvm, + "Not valid error log pointer 0x%08X for %s uCode\n", + base, + (mvm->cur_ucode == IWL_UCODE_INIT) + ? "Init" : "RT"); + return; + } + + iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); + + if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { + IWL_ERR(trans, "Start IWL Error Log Dump:\n"); + IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", + mvm->status, table.valid); + } + + IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, + desc_lookup(table.error_id)); + IWL_ERR(mvm, "0x%08X | umac uPc\n", table.pc); + IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); + IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); + IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); + IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); + IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); + IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); + IWL_ERR(mvm, "0x%08X | umac version\n", table.umac_ver); +} + void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) { struct iwl_trans *trans = mvm->trans; @@ -384,7 +453,7 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) base = mvm->fw->inst_errlog_ptr; } - if (base < 0x800000 || base >= 0x80C000) { + if (base < 0x800000) { IWL_ERR(mvm, "Not valid error log pointer 0x%08X for %s uCode\n", base, @@ -401,6 +470,10 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) mvm->status, table.valid); } + /* Do not change this output - scripts rely on it */ + + IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); + trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, table.data1, table.data2, table.data3, table.blink1, table.blink2, table.ilink1, @@ -441,7 +514,75 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); + + if (mvm->support_umac_log) + iwl_mvm_dump_umac_error_log(mvm); +} + +#ifdef CONFIG_IWLWIFI_DEBUGFS +void iwl_mvm_fw_error_sram_dump(struct iwl_mvm *mvm) +{ + const struct fw_img *img; + u32 ofs, sram_len; + void *sram; + + if (!mvm->ucode_loaded || mvm->fw_error_sram || mvm->fw_error_dump) + return; + + img = &mvm->fw->img[mvm->cur_ucode]; + ofs = img->sec[IWL_UCODE_SECTION_DATA].offset; + sram_len = img->sec[IWL_UCODE_SECTION_DATA].len; + + sram = kzalloc(sram_len, GFP_ATOMIC); + if (!sram) + return; + + iwl_trans_read_mem_bytes(mvm->trans, ofs, sram, sram_len); + mvm->fw_error_sram = sram; + mvm->fw_error_sram_len = sram_len; +} + +void iwl_mvm_fw_error_rxf_dump(struct iwl_mvm *mvm) +{ + int i, reg_val; + unsigned long flags; + + if (!mvm->ucode_loaded || mvm->fw_error_rxf || mvm->fw_error_dump) + return; + + /* reading buffer size */ + reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR); + mvm->fw_error_rxf_len = + (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS; + + /* the register holds the value divided by 128 */ + mvm->fw_error_rxf_len = mvm->fw_error_rxf_len << 7; + + if (!mvm->fw_error_rxf_len) + return; + + mvm->fw_error_rxf = kzalloc(mvm->fw_error_rxf_len, GFP_ATOMIC); + if (!mvm->fw_error_rxf) { + mvm->fw_error_rxf_len = 0; + return; + } + + if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags)) { + kfree(mvm->fw_error_rxf); + mvm->fw_error_rxf = NULL; + mvm->fw_error_rxf_len = 0; + return; + } + + for (i = 0; i < (mvm->fw_error_rxf_len / sizeof(u32)); i++) { + iwl_trans_write_prph(mvm->trans, RXF_LD_FENCE_OFFSET_ADDR, + i * sizeof(u32)); + mvm->fw_error_rxf[i] = + iwl_trans_read_prph(mvm->trans, RXF_FIFO_RD_FENCE_ADDR); + } + iwl_trans_release_nic_access(mvm->trans, &flags); } +#endif /** * iwl_mvm_send_lq_cmd() - Send link quality command @@ -453,21 +594,151 @@ void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) * this case to clear the state indicating that station creation is in * progress. */ -int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, - u8 flags, bool init) +int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) { struct iwl_host_cmd cmd = { .id = LQ_CMD, .len = { sizeof(struct iwl_lq_cmd), }, - .flags = flags, + .flags = init ? 0 : CMD_ASYNC, .data = { lq, }, }; if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) return -EINVAL; - if (WARN_ON(init && (cmd.flags & CMD_ASYNC))) - return -EINVAL; - return iwl_mvm_send_cmd(mvm, &cmd); } + +/** + * iwl_mvm_update_smps - Get a requst to change the SMPS mode + * @req_type: The part of the driver who call for a change. + * @smps_requests: The request to change the SMPS mode. + * + * Get a requst to change the SMPS mode, + * and change it according to all other requests in the driver. + */ +void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + enum iwl_mvm_smps_type_request req_type, + enum ieee80211_smps_mode smps_request) +{ + struct iwl_mvm_vif *mvmvif; + enum ieee80211_smps_mode smps_mode; + int i; + + lockdep_assert_held(&mvm->mutex); + + /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ + if (num_of_ant(mvm->fw->valid_rx_ant) == 1) + return; + + if (vif->type == NL80211_IFTYPE_AP) + smps_mode = IEEE80211_SMPS_OFF; + else + smps_mode = IEEE80211_SMPS_AUTOMATIC; + + mvmvif = iwl_mvm_vif_from_mac80211(vif); + mvmvif->smps_requests[req_type] = smps_request; + for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { + if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { + smps_mode = IEEE80211_SMPS_STATIC; + break; + } + if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) + smps_mode = IEEE80211_SMPS_DYNAMIC; + } + + ieee80211_request_smps(vif, smps_mode); +} + +static void iwl_mvm_diversity_iter(void *_data, u8 *mac, + struct ieee80211_vif *vif) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + bool *result = _data; + int i; + + for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { + if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || + mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) + *result = false; + } +} + +bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) +{ + bool result = true; + + lockdep_assert_held(&mvm->mutex); + + if (num_of_ant(mvm->fw->valid_rx_ant) == 1) + return false; + + if (!mvm->cfg->rx_with_siso_diversity) + return false; + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_diversity_iter, &result); + + return result; +} + +int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, + bool value) +{ + struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); + int res; + + lockdep_assert_held(&mvm->mutex); + + if (mvmvif->low_latency == value) + return 0; + + mvmvif->low_latency = value; + + res = iwl_mvm_update_quotas(mvm, NULL); + if (res) + return res; + + iwl_mvm_bt_coex_vif_change(mvm); + + return iwl_mvm_power_update_mac(mvm); +} + +static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) +{ + bool *result = _data; + + if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) + *result = true; +} + +bool iwl_mvm_low_latency(struct iwl_mvm *mvm) +{ + bool result = false; + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_ll_iter, &result); + + return result; +} + +static void iwl_mvm_idle_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) +{ + bool *idle = _data; + + if (!vif->bss_conf.idle) + *idle = false; +} + +bool iwl_mvm_is_idle(struct iwl_mvm *mvm) +{ + bool idle = true; + + ieee80211_iterate_active_interfaces_atomic( + mvm->hw, IEEE80211_IFACE_ITER_NORMAL, + iwl_mvm_idle_iter, &idle); + + return idle; +} diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c index 8cb53ec2b77..98950e45c7b 100644 --- a/drivers/net/wireless/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/iwlwifi/pcie/drv.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -66,6 +66,7 @@ #include <linux/module.h> #include <linux/pci.h> #include <linux/pci-aspm.h> +#include <linux/acpi.h> #include "iwl-trans.h" #include "iwl-drv.h" @@ -78,6 +79,7 @@ /* Hardware specific file defines the PCI IDs table for that hardware module */ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { +#if IS_ENABLED(CONFIG_IWLDVM) {IWL_PCI_DEVICE(0x4232, 0x1201, iwl5100_agn_cfg)}, /* Mini Card */ {IWL_PCI_DEVICE(0x4232, 0x1301, iwl5100_agn_cfg)}, /* Half Mini Card */ {IWL_PCI_DEVICE(0x4232, 0x1204, iwl5100_agn_cfg)}, /* Mini Card */ @@ -129,6 +131,7 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { {IWL_PCI_DEVICE(0x423C, 0x1306, iwl5150_abg_cfg)}, /* Half Mini Card */ {IWL_PCI_DEVICE(0x423C, 0x1221, iwl5150_agn_cfg)}, /* Mini Card */ {IWL_PCI_DEVICE(0x423C, 0x1321, iwl5150_agn_cfg)}, /* Half Mini Card */ + {IWL_PCI_DEVICE(0x423C, 0x1326, iwl5150_abg_cfg)}, /* Half Mini Card */ {IWL_PCI_DEVICE(0x423D, 0x1211, iwl5150_agn_cfg)}, /* Mini Card */ {IWL_PCI_DEVICE(0x423D, 0x1311, iwl5150_agn_cfg)}, /* Half Mini Card */ @@ -137,13 +140,16 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { /* 6x00 Series */ {IWL_PCI_DEVICE(0x422B, 0x1101, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422B, 0x1108, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x422B, 0x1121, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x422B, 0x1128, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1301, iwl6000i_2agn_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1306, iwl6000i_2abg_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1307, iwl6000i_2bg_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1321, iwl6000i_2agn_cfg)}, {IWL_PCI_DEVICE(0x422C, 0x1326, iwl6000i_2abg_cfg)}, {IWL_PCI_DEVICE(0x4238, 0x1111, iwl6000_3agn_cfg)}, + {IWL_PCI_DEVICE(0x4238, 0x1118, iwl6000_3agn_cfg)}, {IWL_PCI_DEVICE(0x4239, 0x1311, iwl6000i_2agn_cfg)}, {IWL_PCI_DEVICE(0x4239, 0x1316, iwl6000i_2abg_cfg)}, @@ -151,12 +157,16 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { {IWL_PCI_DEVICE(0x0082, 0x1301, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1306, iwl6005_2abg_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1307, iwl6005_2bg_cfg)}, + {IWL_PCI_DEVICE(0x0082, 0x1308, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1321, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1326, iwl6005_2abg_cfg)}, + {IWL_PCI_DEVICE(0x0082, 0x1328, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0085, 0x1311, iwl6005_2agn_cfg)}, + {IWL_PCI_DEVICE(0x0085, 0x1318, iwl6005_2agn_cfg)}, {IWL_PCI_DEVICE(0x0085, 0x1316, iwl6005_2abg_cfg)}, {IWL_PCI_DEVICE(0x0082, 0xC020, iwl6005_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x0085, 0xC220, iwl6005_2agn_sff_cfg)}, + {IWL_PCI_DEVICE(0x0085, 0xC228, iwl6005_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x4820, iwl6005_2agn_d_cfg)}, {IWL_PCI_DEVICE(0x0082, 0x1304, iwl6005_2agn_mow1_cfg)},/* low 5GHz active */ {IWL_PCI_DEVICE(0x0082, 0x1305, iwl6005_2agn_mow2_cfg)},/* high 5GHz active */ @@ -238,8 +248,11 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { /* 6x35 Series */ {IWL_PCI_DEVICE(0x088E, 0x4060, iwl6035_2agn_cfg)}, + {IWL_PCI_DEVICE(0x088E, 0x406A, iwl6035_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x088F, 0x4260, iwl6035_2agn_cfg)}, + {IWL_PCI_DEVICE(0x088F, 0x426A, iwl6035_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x088E, 0x4460, iwl6035_2agn_cfg)}, + {IWL_PCI_DEVICE(0x088E, 0x446A, iwl6035_2agn_sff_cfg)}, {IWL_PCI_DEVICE(0x088E, 0x4860, iwl6035_2agn_cfg)}, {IWL_PCI_DEVICE(0x088F, 0x5260, iwl6035_2agn_cfg)}, @@ -253,18 +266,219 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = { {IWL_PCI_DEVICE(0x0892, 0x0062, iwl135_bgn_cfg)}, {IWL_PCI_DEVICE(0x0893, 0x0262, iwl135_bgn_cfg)}, {IWL_PCI_DEVICE(0x0892, 0x0462, iwl135_bgn_cfg)}, +#endif /* CONFIG_IWLDVM */ -/* 7000 Series */ +#if IS_ENABLED(CONFIG_IWLMVM) +/* 7260 Series */ {IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)}, - {IWL_PCI_DEVICE(0x08B1, 0x4062, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4072, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4060, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x406A, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4160, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4062, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4162, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4270, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4272, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4260, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x426A, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4262, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4470, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4472, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4460, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x446A, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4462, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4870, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x486E, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4A70, iwl7260_2ac_cfg_high_temp)}, + {IWL_PCI_DEVICE(0x08B1, 0x4A6E, iwl7260_2ac_cfg_high_temp)}, + {IWL_PCI_DEVICE(0x08B1, 0x4A6C, iwl7260_2ac_cfg_high_temp)}, + {IWL_PCI_DEVICE(0x08B1, 0x4570, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4560, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4370, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4360, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x5070, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x5072, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x5170, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x5770, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4020, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x402A, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0x4220, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0x4420, iwl7260_2n_cfg)}, {IWL_PCI_DEVICE(0x08B1, 0xC070, iwl7260_2ac_cfg)}, - {IWL_PCI_DEVICE(0x08B3, 0x0070, iwl3160_ac_cfg)}, - {IWL_PCI_DEVICE(0x08B3, 0x8070, iwl3160_ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC072, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC170, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC060, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC06A, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC160, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC062, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC162, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC770, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC760, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC270, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC272, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC260, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC26A, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC262, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC470, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC472, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC460, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC462, iwl7260_n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC570, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC560, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC370, iwl7260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC360, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC020, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC02A, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B2, 0xC220, iwl7260_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B1, 0xC420, iwl7260_2n_cfg)}, + +/* 3160 Series */ + {IWL_PCI_DEVICE(0x08B3, 0x0070, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0072, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0170, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0172, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0060, iwl3160_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0062, iwl3160_n_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x0270, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x0272, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0470, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x0472, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x0370, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8070, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8072, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8170, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8172, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8060, iwl3160_2n_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)}, + {IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x8570, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x1070, iwl3160_2ac_cfg)}, + {IWL_PCI_DEVICE(0x08B3, 0x1170, iwl3160_2ac_cfg)}, + +/* 7265 Series */ + {IWL_PCI_DEVICE(0x095A, 0x5010, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5110, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5100, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5310, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5302, iwl7265_n_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5210, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5012, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5412, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5410, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5510, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5400, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x1010, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5000, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x500A, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5200, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5002, iwl7265_n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5102, iwl7265_n_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5202, iwl7265_n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9010, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9012, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9110, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9112, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9210, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x9200, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9510, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9310, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x9410, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5020, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x502A, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5420, iwl7265_2n_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5090, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5190, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5590, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095B, 0x5290, iwl7265_2ac_cfg)}, + {IWL_PCI_DEVICE(0x095A, 0x5490, iwl7265_2ac_cfg)}, + +/* 8000 Series */ + {IWL_PCI_DEVICE(0x24F3, 0x0010, iwl8260_2ac_cfg)}, + {IWL_PCI_DEVICE(0x24F4, 0x0030, iwl8260_2ac_cfg)}, +#endif /* CONFIG_IWLMVM */ {0} }; MODULE_DEVICE_TABLE(pci, iwl_hw_card_ids); +#ifdef CONFIG_ACPI +#define SPL_METHOD "SPLC" +#define SPL_DOMAINTYPE_MODULE BIT(0) +#define SPL_DOMAINTYPE_WIFI BIT(1) +#define SPL_DOMAINTYPE_WIGIG BIT(2) +#define SPL_DOMAINTYPE_RFEM BIT(3) + +static u64 splx_get_pwr_limit(struct iwl_trans *trans, union acpi_object *splx) +{ + union acpi_object *limits, *domain_type, *power_limit; + + if (splx->type != ACPI_TYPE_PACKAGE || + splx->package.count != 2 || + splx->package.elements[0].type != ACPI_TYPE_INTEGER || + splx->package.elements[0].integer.value != 0) { + IWL_ERR(trans, "Unsupported splx structure\n"); + return 0; + } + + limits = &splx->package.elements[1]; + if (limits->type != ACPI_TYPE_PACKAGE || + limits->package.count < 2 || + limits->package.elements[0].type != ACPI_TYPE_INTEGER || + limits->package.elements[1].type != ACPI_TYPE_INTEGER) { + IWL_ERR(trans, "Invalid limits element\n"); + return 0; + } + + domain_type = &limits->package.elements[0]; + power_limit = &limits->package.elements[1]; + if (!(domain_type->integer.value & SPL_DOMAINTYPE_WIFI)) { + IWL_DEBUG_INFO(trans, "WiFi power is not limited\n"); + return 0; + } + + return power_limit->integer.value; +} + +static void set_dflt_pwr_limit(struct iwl_trans *trans, struct pci_dev *pdev) +{ + acpi_handle pxsx_handle; + acpi_handle handle; + struct acpi_buffer splx = {ACPI_ALLOCATE_BUFFER, NULL}; + acpi_status status; + + pxsx_handle = ACPI_HANDLE(&pdev->dev); + if (!pxsx_handle) { + IWL_DEBUG_INFO(trans, + "Could not retrieve root port ACPI handle\n"); + return; + } + + /* Get the method's handle */ + status = acpi_get_handle(pxsx_handle, (acpi_string)SPL_METHOD, &handle); + if (ACPI_FAILURE(status)) { + IWL_DEBUG_INFO(trans, "SPL method not found\n"); + return; + } + + /* Call SPLC with no arguments */ + status = acpi_evaluate_object(handle, NULL, NULL, &splx); + if (ACPI_FAILURE(status)) { + IWL_ERR(trans, "SPLC invocation failed (0x%x)\n", status); + return; + } + + trans->dflt_pwr_limit = splx_get_pwr_limit(trans, splx.pointer); + IWL_DEBUG_INFO(trans, "Default power limit set to %lld\n", + trans->dflt_pwr_limit); + kfree(splx.pointer); +} + +#else /* CONFIG_ACPI */ +static void set_dflt_pwr_limit(struct iwl_trans *trans, struct pci_dev *pdev) {} +#endif + /* PCI registers */ #define PCI_CFG_RETRY_TIMEOUT 0x041 @@ -276,19 +490,21 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) int ret; iwl_trans = iwl_trans_pcie_alloc(pdev, ent, cfg); - if (iwl_trans == NULL) - return -ENOMEM; + if (IS_ERR(iwl_trans)) + return PTR_ERR(iwl_trans); pci_set_drvdata(pdev, iwl_trans); trans_pcie = IWL_TRANS_GET_PCIE_TRANS(iwl_trans); trans_pcie->drv = iwl_drv_start(iwl_trans, cfg); - if (IS_ERR_OR_NULL(trans_pcie->drv)) { + if (IS_ERR(trans_pcie->drv)) { ret = PTR_ERR(trans_pcie->drv); goto out_free_trans; } + set_dflt_pwr_limit(iwl_trans, pdev); + /* register transport layer debugfs here */ ret = iwl_trans_dbgfs_register(iwl_trans, iwl_trans->dbgfs_dir); if (ret) @@ -300,7 +516,6 @@ out_free_drv: iwl_drv_stop(trans_pcie->drv); out_free_trans: iwl_trans_pcie_free(iwl_trans); - pci_set_drvdata(pdev, NULL); return ret; } @@ -311,29 +526,25 @@ static void iwl_pci_remove(struct pci_dev *pdev) iwl_drv_stop(trans_pcie->drv); iwl_trans_pcie_free(trans); - - pci_set_drvdata(pdev, NULL); } #ifdef CONFIG_PM_SLEEP static int iwl_pci_suspend(struct device *device) { - struct pci_dev *pdev = to_pci_dev(device); - struct iwl_trans *iwl_trans = pci_get_drvdata(pdev); - /* Before you put code here, think about WoWLAN. You cannot check here * whether WoWLAN is enabled or not, and your code will run even if * WoWLAN is enabled - don't kill the NIC, someone may need it in Sx. */ - return iwl_trans_suspend(iwl_trans); + return 0; } static int iwl_pci_resume(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); - struct iwl_trans *iwl_trans = pci_get_drvdata(pdev); + struct iwl_trans *trans = pci_get_drvdata(pdev); + bool hw_rfkill; /* Before you put code here, think about WoWLAN. You cannot check here * whether WoWLAN is enabled or not, and your code will run even if @@ -346,7 +557,15 @@ static int iwl_pci_resume(struct device *device) */ pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); - return iwl_trans_resume(iwl_trans); + if (!trans->op_mode) + return 0; + + iwl_enable_rfkill_int(trans); + + hw_rfkill = iwl_is_rfkill_set(trans); + iwl_trans_pcie_rf_kill(trans, hw_rfkill); + + return 0; } static SIMPLE_DEV_PM_OPS(iwl_dev_pm_ops, iwl_pci_suspend, iwl_pci_resume); diff --git a/drivers/net/wireless/iwlwifi/pcie/internal.h b/drivers/net/wireless/iwlwifi/pcie/internal.h index 148843e7f34..6c22b23a284 100644 --- a/drivers/net/wireless/iwlwifi/pcie/internal.h +++ b/drivers/net/wireless/iwlwifi/pcie/internal.h @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -102,7 +102,7 @@ struct iwl_rxq { u32 write_actual; struct list_head rx_free; struct list_head rx_used; - int need_update; + bool need_update; struct iwl_rb_status *rb_stts; dma_addr_t rb_stts_dma; spinlock_t lock; @@ -117,21 +117,19 @@ struct iwl_dma_ptr { /** * iwl_queue_inc_wrap - increment queue index, wrap back to beginning * @index -- current index - * @n_bd -- total number of entries in queue (must be power of 2) */ -static inline int iwl_queue_inc_wrap(int index, int n_bd) +static inline int iwl_queue_inc_wrap(int index) { - return ++index & (n_bd - 1); + return ++index & (TFD_QUEUE_SIZE_MAX - 1); } /** * iwl_queue_dec_wrap - decrement queue index, wrap back to end * @index -- current index - * @n_bd -- total number of entries in queue (must be power of 2) */ -static inline int iwl_queue_dec_wrap(int index, int n_bd) +static inline int iwl_queue_dec_wrap(int index) { - return --index & (n_bd - 1); + return --index & (TFD_QUEUE_SIZE_MAX - 1); } struct iwl_cmd_meta { @@ -145,13 +143,13 @@ struct iwl_cmd_meta { * * Contains common data for Rx and Tx queues. * - * Note the difference between n_bd and n_window: the hardware - * always assumes 256 descriptors, so n_bd is always 256 (unless + * Note the difference between TFD_QUEUE_SIZE_MAX and n_window: the hardware + * always assumes 256 descriptors, so TFD_QUEUE_SIZE_MAX is always 256 (unless * there might be HW changes in the future). For the normal TX * queues, n_window, which is the size of the software queue data * is also 256; however, for the command queue, n_window is only * 32 since we don't need so many commands pending. Since the HW - * still uses 256 BDs for DMA though, n_bd stays 256. As a result, + * still uses 256 BDs for DMA though, TFD_QUEUE_SIZE_MAX stays 256. As a result, * the software buffers (in the variables @meta, @txb in struct * iwl_txq) only have 32 entries, while the HW buffers (@tfds in * the same struct) have 256. @@ -162,7 +160,6 @@ struct iwl_cmd_meta { * data is a window overlayed over the HW queue. */ struct iwl_queue { - int n_bd; /* number of BDs in this queue */ int write_ptr; /* 1-st empty entry (index) host_w*/ int read_ptr; /* last used entry (index) host_r*/ /* use for monitoring and recovering the stuck queue */ @@ -217,6 +214,7 @@ struct iwl_pcie_txq_scratch_buf { * @trans_pcie: pointer back to transport (for timer) * @need_update: indicates need to update read/write index * @active: stores if queue is active + * @ampdu: true if this queue is an ampdu queue for an specific RA/TID * * A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame * descriptors) and required locking structures. @@ -230,8 +228,9 @@ struct iwl_txq { spinlock_t lock; struct timer_list stuck_timer; struct iwl_trans_pcie *trans_pcie; - u8 need_update; + bool need_update; u8 active; + bool ampdu; }; static inline dma_addr_t @@ -254,13 +253,13 @@ iwl_pcie_get_scratchbuf_dma(struct iwl_txq *txq, int idx) * @hw_base: pci hardware address support * @ucode_write_complete: indicates that the ucode has been copied. * @ucode_write_waitq: wait queue for uCode load - * @status - transport specific status flags * @cmd_queue - command queue number * @rx_buf_size_8k: 8 kB RX buffer size * @bc_table_dword: true if the BC table expects DWORD (as opposed to bytes) * @rx_page_order: page order for receive buffer size * @wd_timeout: queue watchdog timeout (jiffies) * @reg_lock: protect hw register access + * @cmd_in_flight: true when we have a host command in flight */ struct iwl_trans_pcie { struct iwl_rxq rxq; @@ -268,11 +267,13 @@ struct iwl_trans_pcie { struct iwl_trans *trans; struct iwl_drv *drv; + struct net_device napi_dev; + struct napi_struct napi; + /* INT ICT Table */ __le32 *ict_tbl; dma_addr_t ict_tbl_dma; int ict_index; - u32 inta; bool use_ict; struct isr_statistics isr_stats; @@ -294,7 +295,6 @@ struct iwl_trans_pcie { wait_queue_head_t ucode_write_waitq; wait_queue_head_t wait_command_queue; - unsigned long status; u8 cmd_queue; u8 cmd_fifo; u8 n_no_reclaim_cmds; @@ -304,31 +304,14 @@ struct iwl_trans_pcie { bool bc_table_dword; u32 rx_page_order; - const char **command_names; + const char *const *command_names; /* queue watchdog */ unsigned long wd_timeout; /*protect hw register */ spinlock_t reg_lock; -}; - -/** - * enum iwl_pcie_status: status of the PCIe transport - * @STATUS_HCMD_ACTIVE: a SYNC command is being processed - * @STATUS_DEVICE_ENABLED: APM is enabled - * @STATUS_TPOWER_PMI: the device might be asleep (need to wake it up) - * @STATUS_INT_ENABLED: interrupts are enabled - * @STATUS_RFKILL: the HW RFkill switch is in KILL position - * @STATUS_FW_ERROR: the fw is in error state - */ -enum iwl_pcie_status { - STATUS_HCMD_ACTIVE, - STATUS_DEVICE_ENABLED, - STATUS_TPOWER_PMI, - STATUS_INT_ENABLED, - STATUS_RFKILL, - STATUS_FW_ERROR, + bool cmd_in_flight; }; #define IWL_TRANS_GET_PCIE_TRANS(_iwl_trans) \ @@ -361,7 +344,7 @@ void iwl_pcie_rx_free(struct iwl_trans *trans); /***************************************************** * ICT - interrupt handling ******************************************************/ -irqreturn_t iwl_pcie_isr_ict(int irq, void *data); +irqreturn_t iwl_pcie_isr(int irq, void *data); int iwl_pcie_alloc_ict(struct iwl_trans *trans); void iwl_pcie_free_ict(struct iwl_trans *trans); void iwl_pcie_reset_ict(struct iwl_trans *trans); @@ -379,7 +362,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int queue); int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, struct iwl_device_cmd *dev_cmd, int txq_id); -void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans, struct iwl_txq *txq); +void iwl_pcie_txq_check_wrptrs(struct iwl_trans *trans); int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd); void iwl_pcie_hcmd_complete(struct iwl_trans *trans, struct iwl_rx_cmd_buffer *rxb, int handler_status); @@ -387,10 +370,16 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, struct sk_buff_head *skbs); void iwl_trans_pcie_tx_reset(struct iwl_trans *trans); +static inline u16 iwl_pcie_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx) +{ + struct iwl_tfd_tb *tb = &tfd->tbs[idx]; + + return le16_to_cpu(tb->hi_n_len) >> 4; +} + /***************************************************** * Error handling ******************************************************/ -int iwl_pcie_dump_fh(struct iwl_trans *trans, char **buf); void iwl_pcie_dump_csr(struct iwl_trans *trans); /***************************************************** @@ -398,8 +387,7 @@ void iwl_pcie_dump_csr(struct iwl_trans *trans); ******************************************************/ static inline void iwl_disable_interrupts(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - clear_bit(STATUS_INT_ENABLED, &trans_pcie->status); + clear_bit(STATUS_INT_ENABLED, &trans->status); /* disable interrupts from uCode/NIC to host */ iwl_write32(trans, CSR_INT_MASK, 0x00000000); @@ -416,14 +404,18 @@ static inline void iwl_enable_interrupts(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); IWL_DEBUG_ISR(trans, "Enabling interrupts\n"); - set_bit(STATUS_INT_ENABLED, &trans_pcie->status); + set_bit(STATUS_INT_ENABLED, &trans->status); + trans_pcie->inta_mask = CSR_INI_SET_MASK; iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask); } static inline void iwl_enable_rfkill_int(struct iwl_trans *trans) { + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + IWL_DEBUG_ISR(trans, "Enabling rfkill interrupt\n"); - iwl_write32(trans, CSR_INT_MASK, CSR_INT_BIT_RF_KILL); + trans_pcie->inta_mask = CSR_INT_BIT_RF_KILL; + iwl_write32(trans, CSR_INT_MASK, trans_pcie->inta_mask); } static inline void iwl_wake_queue(struct iwl_trans *trans, @@ -476,4 +468,33 @@ static inline bool iwl_is_rfkill_set(struct iwl_trans *trans) CSR_GP_CNTRL_REG_FLAG_HW_RF_KILL_SW); } +static inline void __iwl_trans_pcie_set_bits_mask(struct iwl_trans *trans, + u32 reg, u32 mask, u32 value) +{ + u32 v; + +#ifdef CONFIG_IWLWIFI_DEBUG + WARN_ON_ONCE(value & ~mask); +#endif + + v = iwl_read32(trans, reg); + v &= ~mask; + v |= value; + iwl_write32(trans, reg, v); +} + +static inline void __iwl_trans_pcie_clear_bit(struct iwl_trans *trans, + u32 reg, u32 mask) +{ + __iwl_trans_pcie_set_bits_mask(trans, reg, mask, 0); +} + +static inline void __iwl_trans_pcie_set_bit(struct iwl_trans *trans, + u32 reg, u32 mask) +{ + __iwl_trans_pcie_set_bits_mask(trans, reg, mask, mask); +} + +void iwl_trans_pcie_rf_kill(struct iwl_trans *trans, bool state); + #endif /* __iwl_trans_int_pcie_h__ */ diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c index 567e67ad1f6..a2698e5e062 100644 --- a/drivers/net/wireless/iwlwifi/pcie/rx.c +++ b/drivers/net/wireless/iwlwifi/pcie/rx.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -110,16 +110,18 @@ /* * iwl_rxq_space - Return number of free slots available in queue. */ -static int iwl_rxq_space(const struct iwl_rxq *q) +static int iwl_rxq_space(const struct iwl_rxq *rxq) { - int s = q->read - q->write; - if (s <= 0) - s += RX_QUEUE_SIZE; - /* keep some buffer to not confuse full and empty queue */ - s -= 2; - if (s < 0) - s = 0; - return s; + /* Make sure RX_QUEUE_SIZE is a power of 2 */ + BUILD_BUG_ON(RX_QUEUE_SIZE & (RX_QUEUE_SIZE - 1)); + + /* + * There can be up to (RX_QUEUE_SIZE - 1) free slots, to avoid ambiguity + * between empty and completely full queues. + * The following is equivalent to modulo by RX_QUEUE_SIZE and is well + * defined for negative dividends. + */ + return (rxq->read - rxq->write - 1) & (RX_QUEUE_SIZE - 1); } /* @@ -143,54 +145,52 @@ int iwl_pcie_rx_stop(struct iwl_trans *trans) /* * iwl_pcie_rxq_inc_wr_ptr - Update the write pointer for the RX queue */ -static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans, struct iwl_rxq *q) +static void iwl_pcie_rxq_inc_wr_ptr(struct iwl_trans *trans) { - unsigned long flags; + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rxq *rxq = &trans_pcie->rxq; u32 reg; - spin_lock_irqsave(&q->lock, flags); + lockdep_assert_held(&rxq->lock); - if (q->need_update == 0) - goto exit_unlock; + /* + * explicitly wake up the NIC if: + * 1. shadow registers aren't enabled + * 2. there is a chance that the NIC is asleep + */ + if (!trans->cfg->base_params->shadow_reg_enable && + test_bit(STATUS_TPOWER_PMI, &trans->status)) { + reg = iwl_read32(trans, CSR_UCODE_DRV_GP1); + + if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { + IWL_DEBUG_INFO(trans, "Rx queue requesting wakeup, GP1 = 0x%x\n", + reg); + iwl_set_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + rxq->need_update = true; + return; + } + } - if (trans->cfg->base_params->shadow_reg_enable) { - /* shadow register enabled */ - /* Device expects a multiple of 8 */ - q->write_actual = (q->write & ~0x7); - iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, q->write_actual); - } else { - struct iwl_trans_pcie *trans_pcie = - IWL_TRANS_GET_PCIE_TRANS(trans); - - /* If power-saving is in use, make sure device is awake */ - if (test_bit(STATUS_TPOWER_PMI, &trans_pcie->status)) { - reg = iwl_read32(trans, CSR_UCODE_DRV_GP1); - - if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(trans, - "Rx queue requesting wakeup," - " GP1 = 0x%x\n", reg); - iwl_set_bit(trans, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - goto exit_unlock; - } + rxq->write_actual = round_down(rxq->write, 8); + iwl_write32(trans, FH_RSCSR_CHNL0_WPTR, rxq->write_actual); +} - q->write_actual = (q->write & ~0x7); - iwl_write_direct32(trans, FH_RSCSR_CHNL0_WPTR, - q->write_actual); +static void iwl_pcie_rxq_check_wrptr(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_rxq *rxq = &trans_pcie->rxq; - /* Else device is assumed to be awake */ - } else { - /* Device expects a multiple of 8 */ - q->write_actual = (q->write & ~0x7); - iwl_write_direct32(trans, FH_RSCSR_CHNL0_WPTR, - q->write_actual); - } - } - q->need_update = 0; + spin_lock(&rxq->lock); + + if (!rxq->need_update) + goto exit_unlock; + + iwl_pcie_rxq_inc_wr_ptr(trans); + rxq->need_update = false; exit_unlock: - spin_unlock_irqrestore(&q->lock, flags); + spin_unlock(&rxq->lock); } /* @@ -209,7 +209,6 @@ static void iwl_pcie_rxq_restock(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_rxq *rxq = &trans_pcie->rxq; struct iwl_rx_mem_buffer *rxb; - unsigned long flags; /* * If the device isn't enabled - not need to try to add buffers... @@ -219,10 +218,10 @@ static void iwl_pcie_rxq_restock(struct iwl_trans *trans) * stopped, we cannot access the HW (in particular not prph). * So don't try to restock if the APM has been already stopped. */ - if (!test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) + if (!test_bit(STATUS_DEVICE_ENABLED, &trans->status)) return; - spin_lock_irqsave(&rxq->lock, flags); + spin_lock(&rxq->lock); while ((iwl_rxq_space(rxq) > 0) && (rxq->free_count)) { /* The overwritten rxb must be a used one */ rxb = rxq->queue[rxq->write]; @@ -239,7 +238,7 @@ static void iwl_pcie_rxq_restock(struct iwl_trans *trans) rxq->write = (rxq->write + 1) & RX_QUEUE_MASK; rxq->free_count--; } - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); /* If the pre-allocated buffer pool is dropping low, schedule to * refill it */ if (rxq->free_count <= RX_LOW_WATERMARK) @@ -248,10 +247,9 @@ static void iwl_pcie_rxq_restock(struct iwl_trans *trans) /* If we've added more space for the firmware to place data, tell it. * Increment device's write pointer in multiples of 8. */ if (rxq->write_actual != (rxq->write & ~0x7)) { - spin_lock_irqsave(&rxq->lock, flags); - rxq->need_update = 1; - spin_unlock_irqrestore(&rxq->lock, flags); - iwl_pcie_rxq_inc_wr_ptr(trans, rxq); + spin_lock(&rxq->lock); + iwl_pcie_rxq_inc_wr_ptr(trans); + spin_unlock(&rxq->lock); } } @@ -270,16 +268,15 @@ static void iwl_pcie_rxq_alloc_rbs(struct iwl_trans *trans, gfp_t priority) struct iwl_rxq *rxq = &trans_pcie->rxq; struct iwl_rx_mem_buffer *rxb; struct page *page; - unsigned long flags; gfp_t gfp_mask = priority; while (1) { - spin_lock_irqsave(&rxq->lock, flags); + spin_lock(&rxq->lock); if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); return; } - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); if (rxq->free_count > RX_LOW_WATERMARK) gfp_mask |= __GFP_NOWARN; @@ -308,17 +305,17 @@ static void iwl_pcie_rxq_alloc_rbs(struct iwl_trans *trans, gfp_t priority) return; } - spin_lock_irqsave(&rxq->lock, flags); + spin_lock(&rxq->lock); if (list_empty(&rxq->rx_used)) { - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); __free_pages(page, trans_pcie->rx_page_order); return; } rxb = list_first_entry(&rxq->rx_used, struct iwl_rx_mem_buffer, list); list_del(&rxb->list); - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); BUG_ON(rxb->page); rxb->page = page; @@ -329,9 +326,9 @@ static void iwl_pcie_rxq_alloc_rbs(struct iwl_trans *trans, gfp_t priority) DMA_FROM_DEVICE); if (dma_mapping_error(trans->dev, rxb->page_dma)) { rxb->page = NULL; - spin_lock_irqsave(&rxq->lock, flags); + spin_lock(&rxq->lock); list_add(&rxb->list, &rxq->rx_used); - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); __free_pages(page, trans_pcie->rx_page_order); return; } @@ -340,12 +337,12 @@ static void iwl_pcie_rxq_alloc_rbs(struct iwl_trans *trans, gfp_t priority) /* and also 256 byte aligned! */ BUG_ON(rxb->page_dma & DMA_BIT_MASK(8)); - spin_lock_irqsave(&rxq->lock, flags); + spin_lock(&rxq->lock); list_add_tail(&rxb->list, &rxq->rx_free); rxq->free_count++; - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); } } @@ -355,19 +352,16 @@ static void iwl_pcie_rxq_free_rbs(struct iwl_trans *trans) struct iwl_rxq *rxq = &trans_pcie->rxq; int i; - /* Fill the rx_used queue with _all_ of the Rx buffers */ + lockdep_assert_held(&rxq->lock); + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) { - /* In the reset function, these buffers may have been allocated - * to an SKB, so we need to unmap and free potential storage */ - if (rxq->pool[i].page != NULL) { - dma_unmap_page(trans->dev, rxq->pool[i].page_dma, - PAGE_SIZE << trans_pcie->rx_page_order, - DMA_FROM_DEVICE); - __free_pages(rxq->pool[i].page, - trans_pcie->rx_page_order); - rxq->pool[i].page = NULL; - } - list_add_tail(&rxq->pool[i].list, &rxq->rx_used); + if (!rxq->pool[i].page) + continue; + dma_unmap_page(trans->dev, rxq->pool[i].page_dma, + PAGE_SIZE << trans_pcie->rx_page_order, + DMA_FROM_DEVICE); + __free_pages(rxq->pool[i].page, trans_pcie->rx_page_order); + rxq->pool[i].page = NULL; } } @@ -379,21 +373,9 @@ static void iwl_pcie_rxq_free_rbs(struct iwl_trans *trans) * Also restock the Rx queue via iwl_pcie_rxq_restock. * This is called as a scheduled work item (except for during initialization) */ -static void iwl_pcie_rx_replenish(struct iwl_trans *trans) +static void iwl_pcie_rx_replenish(struct iwl_trans *trans, gfp_t gfp) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - unsigned long flags; - - iwl_pcie_rxq_alloc_rbs(trans, GFP_KERNEL); - - spin_lock_irqsave(&trans_pcie->irq_lock, flags); - iwl_pcie_rxq_restock(trans); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); -} - -static void iwl_pcie_rx_replenish_now(struct iwl_trans *trans) -{ - iwl_pcie_rxq_alloc_rbs(trans, GFP_ATOMIC); + iwl_pcie_rxq_alloc_rbs(trans, gfp); iwl_pcie_rxq_restock(trans); } @@ -403,7 +385,7 @@ static void iwl_pcie_rx_replenish_work(struct work_struct *data) struct iwl_trans_pcie *trans_pcie = container_of(data, struct iwl_trans_pcie, rx_replenish); - iwl_pcie_rx_replenish(trans_pcie->trans); + iwl_pcie_rx_replenish(trans_pcie->trans, GFP_KERNEL); } static int iwl_pcie_rx_alloc(struct iwl_trans *trans) @@ -489,6 +471,24 @@ static void iwl_pcie_rx_hw_init(struct iwl_trans *trans, struct iwl_rxq *rxq) /* Set interrupt coalescing timer to default (2048 usecs) */ iwl_write8(trans, CSR_INT_COALESCING, IWL_HOST_INT_TIMEOUT_DEF); + + /* W/A for interrupt coalescing bug in 7260 and 3160 */ + if (trans->cfg->host_interrupt_operation_mode) + iwl_set_bit(trans, CSR_INT_COALESCING, IWL_HOST_INT_OPER_MODE); +} + +static void iwl_pcie_rx_init_rxb_lists(struct iwl_rxq *rxq) +{ + int i; + + lockdep_assert_held(&rxq->lock); + + INIT_LIST_HEAD(&rxq->rx_free); + INIT_LIST_HEAD(&rxq->rx_used); + rxq->free_count = 0; + + for (i = 0; i < RX_FREE_BUFFERS + RX_QUEUE_SIZE; i++) + list_add(&rxq->pool[i].list, &rxq->rx_used); } int iwl_pcie_rx_init(struct iwl_trans *trans) @@ -496,7 +496,6 @@ int iwl_pcie_rx_init(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_rxq *rxq = &trans_pcie->rxq; int i, err; - unsigned long flags; if (!rxq->bd) { err = iwl_pcie_rx_alloc(trans); @@ -504,14 +503,13 @@ int iwl_pcie_rx_init(struct iwl_trans *trans) return err; } - spin_lock_irqsave(&rxq->lock, flags); - INIT_LIST_HEAD(&rxq->rx_free); - INIT_LIST_HEAD(&rxq->rx_used); + spin_lock(&rxq->lock); - INIT_WORK(&trans_pcie->rx_replenish, - iwl_pcie_rx_replenish_work); + INIT_WORK(&trans_pcie->rx_replenish, iwl_pcie_rx_replenish_work); + /* free all first - we might be reconfigured for a different size */ iwl_pcie_rxq_free_rbs(trans); + iwl_pcie_rx_init_rxb_lists(rxq); for (i = 0; i < RX_QUEUE_SIZE; i++) rxq->queue[i] = NULL; @@ -520,18 +518,16 @@ int iwl_pcie_rx_init(struct iwl_trans *trans) * not restocked the Rx queue with fresh buffers */ rxq->read = rxq->write = 0; rxq->write_actual = 0; - rxq->free_count = 0; memset(rxq->rb_stts, 0, sizeof(*rxq->rb_stts)); - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); - iwl_pcie_rx_replenish(trans); + iwl_pcie_rx_replenish(trans, GFP_KERNEL); iwl_pcie_rx_hw_init(trans, rxq); - spin_lock_irqsave(&trans_pcie->irq_lock, flags); - rxq->need_update = 1; - iwl_pcie_rxq_inc_wr_ptr(trans, rxq); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_lock(&rxq->lock); + iwl_pcie_rxq_inc_wr_ptr(trans); + spin_unlock(&rxq->lock); return 0; } @@ -540,7 +536,6 @@ void iwl_pcie_rx_free(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_rxq *rxq = &trans_pcie->rxq; - unsigned long flags; /*if rxq->bd is NULL, it means that nothing has been allocated, * exit now */ @@ -551,9 +546,9 @@ void iwl_pcie_rx_free(struct iwl_trans *trans) cancel_work_sync(&trans_pcie->rx_replenish); - spin_lock_irqsave(&rxq->lock, flags); + spin_lock(&rxq->lock); iwl_pcie_rxq_free_rbs(trans); - spin_unlock_irqrestore(&rxq->lock, flags); + spin_unlock(&rxq->lock); dma_free_coherent(trans->dev, sizeof(__le32) * RX_QUEUE_SIZE, rxq->bd, rxq->bd_dma); @@ -576,7 +571,6 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans, struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_rxq *rxq = &trans_pcie->rxq; struct iwl_txq *txq = &trans_pcie->txq[trans_pcie->cmd_queue]; - unsigned long flags; bool page_stolen = false; int max_len = PAGE_SIZE << trans_pcie->rx_page_order; u32 offset = 0; @@ -609,7 +603,7 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans, rxcb._offset, get_cmd_string(trans_pcie, pkt->hdr.cmd), pkt->hdr.cmd); - len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; + len = iwl_rx_packet_len(pkt); len += sizeof(u32); /* account for status word */ trace_iwlwifi_dev_rx(trans->dev, trans, pkt, len); trace_iwlwifi_dev_rx_data(trans->dev, trans, pkt, len); @@ -678,7 +672,6 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans, /* Reuse the page if possible. For notification packets and * SKBs that fail to Rx correctly, add them back into the * rx_free list for reuse later. */ - spin_lock_irqsave(&rxq->lock, flags); if (rxb->page != NULL) { rxb->page_dma = dma_map_page(trans->dev, rxb->page, 0, @@ -699,7 +692,6 @@ static void iwl_pcie_rx_handle_rb(struct iwl_trans *trans, } } else list_add_tail(&rxb->list, &rxq->rx_used); - spin_unlock_irqrestore(&rxq->lock, flags); } /* @@ -714,6 +706,8 @@ static void iwl_pcie_rx_handle(struct iwl_trans *trans) u32 count = 8; int total_empty; +restart: + spin_lock(&rxq->lock); /* uCode's read index (stored in shared DRAM) indicates the last Rx * buffer that the driver may process (last buffer filled by ucode). */ r = le16_to_cpu(ACCESS_ONCE(rxq->rb_stts->closed_rb_num)) & 0x0FFF; @@ -748,18 +742,25 @@ static void iwl_pcie_rx_handle(struct iwl_trans *trans) count++; if (count >= 8) { rxq->read = i; - iwl_pcie_rx_replenish_now(trans); + spin_unlock(&rxq->lock); + iwl_pcie_rx_replenish(trans, GFP_ATOMIC); count = 0; + goto restart; } } } /* Backtrack one entry */ rxq->read = i; + spin_unlock(&rxq->lock); + if (fill_rx) - iwl_pcie_rx_replenish_now(trans); + iwl_pcie_rx_replenish(trans, GFP_ATOMIC); else iwl_pcie_rxq_restock(trans); + + if (trans_pcie->napi.poll) + napi_gro_flush(&trans_pcie->napi, false); } /* @@ -775,22 +776,103 @@ static void iwl_pcie_irq_handle_error(struct iwl_trans *trans) APMS_CLK_VAL_MRB_FUNC_MODE) || (iwl_read_prph(trans, APMG_PS_CTRL_REG) & APMG_PS_CTRL_VAL_RESET_REQ))) { - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); iwl_op_mode_wimax_active(trans->op_mode); wake_up(&trans_pcie->wait_command_queue); return; } iwl_pcie_dump_csr(trans); - iwl_pcie_dump_fh(trans, NULL); - - set_bit(STATUS_FW_ERROR, &trans_pcie->status); - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); - wake_up(&trans_pcie->wait_command_queue); + iwl_dump_fh(trans, NULL); local_bh_disable(); - iwl_op_mode_nic_error(trans->op_mode); + /* The STATUS_FW_ERROR bit is set in this function. This must happen + * before we wake up the command caller, to ensure a proper cleanup. */ + iwl_trans_fw_error(trans); local_bh_enable(); + + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); + wake_up(&trans_pcie->wait_command_queue); +} + +static u32 iwl_pcie_int_cause_non_ict(struct iwl_trans *trans) +{ + u32 inta; + + lockdep_assert_held(&IWL_TRANS_GET_PCIE_TRANS(trans)->irq_lock); + + trace_iwlwifi_dev_irq(trans->dev); + + /* Discover which interrupts are active/pending */ + inta = iwl_read32(trans, CSR_INT); + + /* the thread will service interrupts and re-enable them */ + return inta; +} + +/* a device (PCI-E) page is 4096 bytes long */ +#define ICT_SHIFT 12 +#define ICT_SIZE (1 << ICT_SHIFT) +#define ICT_COUNT (ICT_SIZE / sizeof(u32)) + +/* interrupt handler using ict table, with this interrupt driver will + * stop using INTA register to get device's interrupt, reading this register + * is expensive, device will write interrupts in ICT dram table, increment + * index then will fire interrupt to driver, driver will OR all ICT table + * entries from current index up to table entry with 0 value. the result is + * the interrupt we need to service, driver will set the entries back to 0 and + * set index. + */ +static u32 iwl_pcie_int_cause_ict(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + u32 inta; + u32 val = 0; + u32 read; + + trace_iwlwifi_dev_irq(trans->dev); + + /* Ignore interrupt if there's nothing in NIC to service. + * This may be due to IRQ shared with another device, + * or due to sporadic interrupts thrown from our NIC. */ + read = le32_to_cpu(trans_pcie->ict_tbl[trans_pcie->ict_index]); + trace_iwlwifi_dev_ict_read(trans->dev, trans_pcie->ict_index, read); + if (!read) + return 0; + + /* + * Collect all entries up to the first 0, starting from ict_index; + * note we already read at ict_index. + */ + do { + val |= read; + IWL_DEBUG_ISR(trans, "ICT index %d value 0x%08X\n", + trans_pcie->ict_index, read); + trans_pcie->ict_tbl[trans_pcie->ict_index] = 0; + trans_pcie->ict_index = + ((trans_pcie->ict_index + 1) & (ICT_COUNT - 1)); + + read = le32_to_cpu(trans_pcie->ict_tbl[trans_pcie->ict_index]); + trace_iwlwifi_dev_ict_read(trans->dev, trans_pcie->ict_index, + read); + } while (read); + + /* We should not get this value, just ignore it. */ + if (val == 0xffffffff) + val = 0; + + /* + * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit + * (bit 15 before shifting it to 31) to clear when using interrupt + * coalescing. fortunately, bits 18 and 19 stay set when this happens + * so we use them to decide on the real state of the Rx bit. + * In order words, bit 15 is set if bit 18 or bit 19 are set. + */ + if (val & 0xC0000) + val |= 0x8000; + + inta = (0xff & val) | ((0xff00 & val) << 16); + return inta; } irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) @@ -800,15 +882,60 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) struct isr_statistics *isr_stats = &trans_pcie->isr_stats; u32 inta = 0; u32 handled = 0; - unsigned long flags; - u32 i; -#ifdef CONFIG_IWLWIFI_DEBUG - u32 inta_mask; -#endif lock_map_acquire(&trans->sync_cmd_lockdep_map); - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); + + /* dram interrupt table not set yet, + * use legacy interrupt. + */ + if (likely(trans_pcie->use_ict)) + inta = iwl_pcie_int_cause_ict(trans); + else + inta = iwl_pcie_int_cause_non_ict(trans); + + if (iwl_have_debug_level(IWL_DL_ISR)) { + IWL_DEBUG_ISR(trans, + "ISR inta 0x%08x, enabled 0x%08x(sw), enabled(hw) 0x%08x, fh 0x%08x\n", + inta, trans_pcie->inta_mask, + iwl_read32(trans, CSR_INT_MASK), + iwl_read32(trans, CSR_FH_INT_STATUS)); + if (inta & (~trans_pcie->inta_mask)) + IWL_DEBUG_ISR(trans, + "We got a masked interrupt (0x%08x)\n", + inta & (~trans_pcie->inta_mask)); + } + + inta &= trans_pcie->inta_mask; + + /* + * Ignore interrupt if there's nothing in NIC to service. + * This may be due to IRQ shared with another device, + * or due to sporadic interrupts thrown from our NIC. + */ + if (unlikely(!inta)) { + IWL_DEBUG_ISR(trans, "Ignore interrupt, inta == 0\n"); + /* + * Re-enable interrupts here since we don't + * have anything to service + */ + if (test_bit(STATUS_INT_ENABLED, &trans->status)) + iwl_enable_interrupts(trans); + spin_unlock(&trans_pcie->irq_lock); + lock_map_release(&trans->sync_cmd_lockdep_map); + return IRQ_NONE; + } + + if (unlikely(inta == 0xFFFFFFFF || (inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { + /* + * Hardware disappeared. It might have + * already raised an interrupt. + */ + IWL_WARN(trans, "HARDWARE GONE?? INTA == 0x%08x\n", inta); + spin_unlock(&trans_pcie->irq_lock); + goto out; + } /* Ack/clear/reset pending uCode interrupts. * Note: Some bits in CSR_INT are "OR" of bits in CSR_FH_INT_STATUS, @@ -821,24 +948,13 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) * hardware bugs here by ACKing all the possible interrupts so that * interrupt coalescing can still be achieved. */ - iwl_write32(trans, CSR_INT, - trans_pcie->inta | ~trans_pcie->inta_mask); - - inta = trans_pcie->inta; + iwl_write32(trans, CSR_INT, inta | ~trans_pcie->inta_mask); -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_have_debug_level(IWL_DL_ISR)) { - /* just for debug */ - inta_mask = iwl_read32(trans, CSR_INT_MASK); + if (iwl_have_debug_level(IWL_DL_ISR)) IWL_DEBUG_ISR(trans, "inta 0x%08x, enabled 0x%08x\n", - inta, inta_mask); - } -#endif + inta, iwl_read32(trans, CSR_INT_MASK)); - /* saved interrupt in inta variable now we can reset trans_pcie->inta */ - trans_pcie->inta = 0; - - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); /* Now service all interrupt bits discovered above. */ if (inta & CSR_INT_BIT_HW_ERR) { @@ -855,12 +971,11 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) goto out; } -#ifdef CONFIG_IWLWIFI_DEBUG if (iwl_have_debug_level(IWL_DL_ISR)) { /* NIC fires this, but we don't use it, redundant with WAKEUP */ if (inta & CSR_INT_BIT_SCD) { - IWL_DEBUG_ISR(trans, "Scheduler finished to transmit " - "the frame/frames.\n"); + IWL_DEBUG_ISR(trans, + "Scheduler finished to transmit the frame/frames.\n"); isr_stats->sch++; } @@ -870,7 +985,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) isr_stats->alive++; } } -#endif + /* Safely ignore these bits for debug checks below */ inta &= ~(CSR_INT_BIT_SCD | CSR_INT_BIT_ALIVE); @@ -884,16 +999,16 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) isr_stats->rfkill++; - iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); + iwl_trans_pcie_rf_kill(trans, hw_rfkill); if (hw_rfkill) { - set_bit(STATUS_RFKILL, &trans_pcie->status); - if (test_and_clear_bit(STATUS_HCMD_ACTIVE, - &trans_pcie->status)) + set_bit(STATUS_RFKILL, &trans->status); + if (test_and_clear_bit(STATUS_SYNC_HCMD_ACTIVE, + &trans->status)) IWL_DEBUG_RF_KILL(trans, "Rfkill while SYNC HCMD in flight\n"); wake_up(&trans_pcie->wait_command_queue); } else { - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_RFKILL, &trans->status); } handled |= CSR_INT_BIT_RF_KILL; @@ -918,9 +1033,8 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) /* uCode wakes up after power-down sleep */ if (inta & CSR_INT_BIT_WAKEUP) { IWL_DEBUG_ISR(trans, "Wakeup interrupt\n"); - iwl_pcie_rxq_inc_wr_ptr(trans, &trans_pcie->rxq); - for (i = 0; i < trans->cfg->base_params->num_of_queues; i++) - iwl_pcie_txq_inc_wr_ptr(trans, &trans_pcie->txq[i]); + iwl_pcie_rxq_check_wrptr(trans); + iwl_pcie_txq_check_wrptrs(trans); isr_stats->wakeup++; @@ -958,8 +1072,6 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) iwl_write8(trans, CSR_INT_PERIODIC_REG, CSR_INT_PERIODIC_DIS); - iwl_pcie_rx_handle(trans); - /* * Enable periodic interrupt in 8 msec only if we received * real RX interrupt (instead of just periodic int), to catch @@ -972,6 +1084,10 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) CSR_INT_PERIODIC_ENA); isr_stats->rx++; + + local_bh_disable(); + iwl_pcie_rx_handle(trans); + local_bh_enable(); } /* This "Tx" DMA channel is used only for loading uCode */ @@ -997,7 +1113,7 @@ irqreturn_t iwl_pcie_irq_handler(int irq, void *dev_id) /* Re-enable all interrupts */ /* only Re-enable if disabled by irq */ - if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status)) + if (test_bit(STATUS_INT_ENABLED, &trans->status)) iwl_enable_interrupts(trans); /* Re-enable RF_KILL if it occurred */ else if (handled & CSR_INT_BIT_RF_KILL) @@ -1014,11 +1130,6 @@ out: * ******************************************************************************/ -/* a device (PCI-E) page is 4096 bytes long */ -#define ICT_SHIFT 12 -#define ICT_SIZE (1 << ICT_SHIFT) -#define ICT_COUNT (ICT_SIZE / sizeof(u32)) - /* Free dram table */ void iwl_pcie_free_ict(struct iwl_trans *trans) { @@ -1043,7 +1154,7 @@ int iwl_pcie_alloc_ict(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); trans_pcie->ict_tbl = - dma_alloc_coherent(trans->dev, ICT_SIZE, + dma_zalloc_coherent(trans->dev, ICT_SIZE, &trans_pcie->ict_tbl_dma, GFP_KERNEL); if (!trans_pcie->ict_tbl) @@ -1055,17 +1166,10 @@ int iwl_pcie_alloc_ict(struct iwl_trans *trans) return -EINVAL; } - IWL_DEBUG_ISR(trans, "ict dma addr %Lx\n", - (unsigned long long)trans_pcie->ict_tbl_dma); + IWL_DEBUG_ISR(trans, "ict dma addr %Lx ict vir addr %p\n", + (unsigned long long)trans_pcie->ict_tbl_dma, + trans_pcie->ict_tbl); - IWL_DEBUG_ISR(trans, "ict vir addr %p\n", trans_pcie->ict_tbl); - - /* reset table and index to all 0 */ - memset(trans_pcie->ict_tbl, 0, ICT_SIZE); - trans_pcie->ict_index = 0; - - /* add periodic RX interrupt */ - trans_pcie->inta_mask |= CSR_INT_BIT_RX_PERIODIC; return 0; } @@ -1076,12 +1180,11 @@ void iwl_pcie_reset_ict(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); u32 val; - unsigned long flags; if (!trans_pcie->ict_tbl) return; - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); memset(trans_pcie->ict_tbl, 0, ICT_SIZE); @@ -1098,209 +1201,32 @@ void iwl_pcie_reset_ict(struct iwl_trans *trans) trans_pcie->ict_index = 0; iwl_write32(trans, CSR_INT, trans_pcie->inta_mask); iwl_enable_interrupts(trans); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); } /* Device is going down disable ict interrupt usage */ void iwl_pcie_disable_ict(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - unsigned long flags; - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); trans_pcie->use_ict = false; - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); } -/* legacy (non-ICT) ISR. Assumes that trans_pcie->irq_lock is held */ -static irqreturn_t iwl_pcie_isr(int irq, void *data) +irqreturn_t iwl_pcie_isr(int irq, void *data) { struct iwl_trans *trans = data; - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - u32 inta, inta_mask; -#ifdef CONFIG_IWLWIFI_DEBUG - u32 inta_fh; -#endif - - lockdep_assert_held(&trans_pcie->irq_lock); - - trace_iwlwifi_dev_irq(trans->dev); - - /* Disable (but don't clear!) interrupts here to avoid - * back-to-back ISRs and sporadic interrupts from our NIC. - * If we have something to service, the irq thread will re-enable ints. - * If we *don't* have something, we'll re-enable before leaving here. */ - inta_mask = iwl_read32(trans, CSR_INT_MASK); - iwl_write32(trans, CSR_INT_MASK, 0x00000000); - - /* Discover which interrupts are active/pending */ - inta = iwl_read32(trans, CSR_INT); - - if (inta & (~inta_mask)) { - IWL_DEBUG_ISR(trans, - "We got a masked interrupt (0x%08x)...Ack and ignore\n", - inta & (~inta_mask)); - iwl_write32(trans, CSR_INT, inta & (~inta_mask)); - inta &= inta_mask; - } - - /* Ignore interrupt if there's nothing in NIC to service. - * This may be due to IRQ shared with another device, - * or due to sporadic interrupts thrown from our NIC. */ - if (!inta) { - IWL_DEBUG_ISR(trans, "Ignore interrupt, inta == 0\n"); - goto none; - } - - if ((inta == 0xFFFFFFFF) || ((inta & 0xFFFFFFF0) == 0xa5a5a5a0)) { - /* Hardware disappeared. It might have already raised - * an interrupt */ - IWL_WARN(trans, "HARDWARE GONE?? INTA == 0x%08x\n", inta); - return IRQ_HANDLED; - } - -#ifdef CONFIG_IWLWIFI_DEBUG - if (iwl_have_debug_level(IWL_DL_ISR)) { - inta_fh = iwl_read32(trans, CSR_FH_INT_STATUS); - IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled 0x%08x, " - "fh 0x%08x\n", inta, inta_mask, inta_fh); - } -#endif - - trans_pcie->inta |= inta; - /* the thread will service interrupts and re-enable them */ - if (likely(inta)) - return IRQ_WAKE_THREAD; - else if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && - !trans_pcie->inta) - iwl_enable_interrupts(trans); - return IRQ_HANDLED; - -none: - /* re-enable interrupts here since we don't have anything to service. */ - /* only Re-enable if disabled by irq and no schedules tasklet. */ - if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && - !trans_pcie->inta) - iwl_enable_interrupts(trans); - - return IRQ_NONE; -} - -/* interrupt handler using ict table, with this interrupt driver will - * stop using INTA register to get device's interrupt, reading this register - * is expensive, device will write interrupts in ICT dram table, increment - * index then will fire interrupt to driver, driver will OR all ICT table - * entries from current index up to table entry with 0 value. the result is - * the interrupt we need to service, driver will set the entries back to 0 and - * set index. - */ -irqreturn_t iwl_pcie_isr_ict(int irq, void *data) -{ - struct iwl_trans *trans = data; - struct iwl_trans_pcie *trans_pcie; - u32 inta, inta_mask; - u32 val = 0; - u32 read; - unsigned long flags; if (!trans) return IRQ_NONE; - trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - - spin_lock_irqsave(&trans_pcie->irq_lock, flags); - - /* dram interrupt table not set yet, - * use legacy interrupt. - */ - if (unlikely(!trans_pcie->use_ict)) { - irqreturn_t ret = iwl_pcie_isr(irq, data); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - return ret; - } - - trace_iwlwifi_dev_irq(trans->dev); - /* Disable (but don't clear!) interrupts here to avoid * back-to-back ISRs and sporadic interrupts from our NIC. * If we have something to service, the tasklet will re-enable ints. * If we *don't* have something, we'll re-enable before leaving here. */ - inta_mask = iwl_read32(trans, CSR_INT_MASK); iwl_write32(trans, CSR_INT_MASK, 0x00000000); - /* Ignore interrupt if there's nothing in NIC to service. - * This may be due to IRQ shared with another device, - * or due to sporadic interrupts thrown from our NIC. */ - read = le32_to_cpu(trans_pcie->ict_tbl[trans_pcie->ict_index]); - trace_iwlwifi_dev_ict_read(trans->dev, trans_pcie->ict_index, read); - if (!read) { - IWL_DEBUG_ISR(trans, "Ignore interrupt, inta == 0\n"); - goto none; - } - - /* - * Collect all entries up to the first 0, starting from ict_index; - * note we already read at ict_index. - */ - do { - val |= read; - IWL_DEBUG_ISR(trans, "ICT index %d value 0x%08X\n", - trans_pcie->ict_index, read); - trans_pcie->ict_tbl[trans_pcie->ict_index] = 0; - trans_pcie->ict_index = - iwl_queue_inc_wrap(trans_pcie->ict_index, ICT_COUNT); - - read = le32_to_cpu(trans_pcie->ict_tbl[trans_pcie->ict_index]); - trace_iwlwifi_dev_ict_read(trans->dev, trans_pcie->ict_index, - read); - } while (read); - - /* We should not get this value, just ignore it. */ - if (val == 0xffffffff) - val = 0; - - /* - * this is a w/a for a h/w bug. the h/w bug may cause the Rx bit - * (bit 15 before shifting it to 31) to clear when using interrupt - * coalescing. fortunately, bits 18 and 19 stay set when this happens - * so we use them to decide on the real state of the Rx bit. - * In order words, bit 15 is set if bit 18 or bit 19 are set. - */ - if (val & 0xC0000) - val |= 0x8000; - - inta = (0xff & val) | ((0xff00 & val) << 16); - IWL_DEBUG_ISR(trans, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n", - inta, inta_mask, val); - - inta &= trans_pcie->inta_mask; - trans_pcie->inta |= inta; - - /* iwl_pcie_tasklet() will service interrupts and re-enable them */ - if (likely(inta)) { - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - return IRQ_WAKE_THREAD; - } else if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && - !trans_pcie->inta) { - /* Allow interrupt if was disabled by this handler and - * no tasklet was schedules, We should not enable interrupt, - * tasklet will enable it. - */ - iwl_enable_interrupts(trans); - } - - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - return IRQ_HANDLED; - - none: - /* re-enable interrupts here since we don't have anything to service. - * only Re-enable if disabled by irq. - */ - if (test_bit(STATUS_INT_ENABLED, &trans_pcie->status) && - !trans_pcie->inta) - iwl_enable_interrupts(trans); - - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - return IRQ_NONE; + return IRQ_WAKE_THREAD; } diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c index 50ba0a468f9..788085bc65d 100644 --- a/drivers/net/wireless/iwlwifi/pcie/trans.c +++ b/drivers/net/wireless/iwlwifi/pcie/trans.c @@ -5,7 +5,7 @@ * * GPL LICENSE SUMMARY * - * Copyright(c) 2007 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of version 2 of the GNU General Public License as @@ -30,7 +30,7 @@ * * BSD LICENSE * - * Copyright(c) 2005 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -73,33 +73,21 @@ #include "iwl-csr.h" #include "iwl-prph.h" #include "iwl-agn-hw.h" +#include "iwl-fw-error-dump.h" #include "internal.h" -static void __iwl_trans_pcie_set_bits_mask(struct iwl_trans *trans, - u32 reg, u32 mask, u32 value) +static u32 iwl_trans_pcie_read_shr(struct iwl_trans *trans, u32 reg) { - u32 v; - -#ifdef CONFIG_IWLWIFI_DEBUG - WARN_ON_ONCE(value & ~mask); -#endif - - v = iwl_read32(trans, reg); - v &= ~mask; - v |= value; - iwl_write32(trans, reg, v); -} - -static inline void __iwl_trans_pcie_clear_bit(struct iwl_trans *trans, - u32 reg, u32 mask) -{ - __iwl_trans_pcie_set_bits_mask(trans, reg, mask, 0); + iwl_write32(trans, HEEP_CTRL_WRD_PCIEX_CTRL_REG, + ((reg & 0x0000ffff) | (2 << 28))); + return iwl_read32(trans, HEEP_CTRL_WRD_PCIEX_DATA_REG); } -static inline void __iwl_trans_pcie_set_bit(struct iwl_trans *trans, - u32 reg, u32 mask) +static void iwl_trans_pcie_write_shr(struct iwl_trans *trans, u32 reg, u32 val) { - __iwl_trans_pcie_set_bits_mask(trans, reg, mask, mask); + iwl_write32(trans, HEEP_CTRL_WRD_PCIEX_DATA_REG, val); + iwl_write32(trans, HEEP_CTRL_WRD_PCIEX_CTRL_REG, + ((reg & 0x0000ffff) | (3 << 28))); } static void iwl_pcie_set_pwr(struct iwl_trans *trans, bool vaux) @@ -150,7 +138,6 @@ static void iwl_pcie_apm_config(struct iwl_trans *trans) */ static int iwl_pcie_apm_init(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int ret = 0; IWL_DEBUG_INFO(trans, "Init card's basic functions\n"); @@ -160,8 +147,9 @@ static int iwl_pcie_apm_init(struct iwl_trans *trans) */ /* Disable L0S exit timer (platform NMI Work/Around) */ - iwl_set_bit(trans, CSR_GIO_CHICKEN_BITS, - CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_set_bit(trans, CSR_GIO_CHICKEN_BITS, + CSR_GIO_CHICKEN_BITS_REG_BIT_DIS_L0S_EXIT_TIMER); /* * Disable L0s without affecting L1; @@ -206,26 +194,165 @@ static int iwl_pcie_apm_init(struct iwl_trans *trans) goto out; } + if (trans->cfg->host_interrupt_operation_mode) { + /* + * This is a bit of an abuse - This is needed for 7260 / 3160 + * only check host_interrupt_operation_mode even if this is + * not related to host_interrupt_operation_mode. + * + * Enable the oscillator to count wake up time for L1 exit. This + * consumes slightly more power (100uA) - but allows to be sure + * that we wake up from L1 on time. + * + * This looks weird: read twice the same register, discard the + * value, set a bit, and yet again, read that same register + * just to discard the value. But that's the way the hardware + * seems to like it. + */ + iwl_read_prph(trans, OSC_CLK); + iwl_read_prph(trans, OSC_CLK); + iwl_set_bits_prph(trans, OSC_CLK, OSC_CLK_FORCE_CONTROL); + iwl_read_prph(trans, OSC_CLK); + iwl_read_prph(trans, OSC_CLK); + } + /* * Enable DMA clock and wait for it to stabilize. * - * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" bits - * do not disable clocks. This preserves any hardware bits already - * set by default in "CLK_CTRL_REG" after reset. + * Write to "CLK_EN_REG"; "1" bits enable clocks, while "0" + * bits do not disable clocks. This preserves any hardware + * bits already set by default in "CLK_CTRL_REG" after reset. */ - iwl_write_prph(trans, APMG_CLK_EN_REG, APMG_CLK_VAL_DMA_CLK_RQT); - udelay(20); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) { + iwl_write_prph(trans, APMG_CLK_EN_REG, + APMG_CLK_VAL_DMA_CLK_RQT); + udelay(20); - /* Disable L1-Active */ - iwl_set_bits_prph(trans, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + /* Disable L1-Active */ + iwl_set_bits_prph(trans, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); - set_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); + /* Clear the interrupt in APMG if the NIC is in RFKILL */ + iwl_write_prph(trans, APMG_RTC_INT_STT_REG, + APMG_RTC_INT_STT_RFKILL); + } + + set_bit(STATUS_DEVICE_ENABLED, &trans->status); out: return ret; } +/* + * Enable LP XTAL to avoid HW bug where device may consume much power if + * FW is not loaded after device reset. LP XTAL is disabled by default + * after device HW reset. Do it only if XTAL is fed by internal source. + * Configure device's "persistence" mode to avoid resetting XTAL again when + * SHRD_HW_RST occurs in S3. + */ +static void iwl_pcie_apm_lp_xtal_enable(struct iwl_trans *trans) +{ + int ret; + u32 apmg_gp1_reg; + u32 apmg_xtal_cfg_reg; + u32 dl_cfg_reg; + + /* Force XTAL ON */ + __iwl_trans_pcie_set_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_XTAL_ON); + + /* Reset entire device - do controller reset (results in SHRD_HW_RST) */ + iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + + /* + * Set "initialization complete" bit to move adapter from + * D0U* --> D0A* (powered-up active) state. + */ + iwl_set_bit(trans, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + + /* + * Wait for clock stabilization; once stabilized, access to + * device-internal resources is possible. + */ + ret = iwl_poll_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, + CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY, + 25000); + if (WARN_ON(ret < 0)) { + IWL_ERR(trans, "Access time out - failed to enable LP XTAL\n"); + /* Release XTAL ON request */ + __iwl_trans_pcie_clear_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_XTAL_ON); + return; + } + + /* + * Clear "disable persistence" to avoid LP XTAL resetting when + * SHRD_HW_RST is applied in S3. + */ + iwl_clear_bits_prph(trans, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_PERSIST_DIS); + + /* + * Force APMG XTAL to be active to prevent its disabling by HW + * caused by APMG idle state. + */ + apmg_xtal_cfg_reg = iwl_trans_pcie_read_shr(trans, + SHR_APMG_XTAL_CFG_REG); + iwl_trans_pcie_write_shr(trans, SHR_APMG_XTAL_CFG_REG, + apmg_xtal_cfg_reg | + SHR_APMG_XTAL_CFG_XTAL_ON_REQ); + + /* + * Reset entire device again - do controller reset (results in + * SHRD_HW_RST). Turn MAC off before proceeding. + */ + iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + udelay(10); + + /* Enable LP XTAL by indirect access through CSR */ + apmg_gp1_reg = iwl_trans_pcie_read_shr(trans, SHR_APMG_GP1_REG); + iwl_trans_pcie_write_shr(trans, SHR_APMG_GP1_REG, apmg_gp1_reg | + SHR_APMG_GP1_WF_XTAL_LP_EN | + SHR_APMG_GP1_CHICKEN_BIT_SELECT); + + /* Clear delay line clock power up */ + dl_cfg_reg = iwl_trans_pcie_read_shr(trans, SHR_APMG_DL_CFG_REG); + iwl_trans_pcie_write_shr(trans, SHR_APMG_DL_CFG_REG, dl_cfg_reg & + ~SHR_APMG_DL_CFG_DL_CLOCK_POWER_UP); + + /* + * Enable persistence mode to avoid LP XTAL resetting when + * SHRD_HW_RST is applied in S3. + */ + iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_PERSIST_MODE); + + /* + * Clear "initialization complete" bit to move adapter from + * D0A* (powered-up Active) --> D0U* (Uninitialized) state. + */ + iwl_clear_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_INIT_DONE); + + /* Activates XTAL resources monitor */ + __iwl_trans_pcie_set_bit(trans, CSR_MONITOR_CFG_REG, + CSR_MONITOR_XTAL_RESOURCES); + + /* Release XTAL ON request */ + __iwl_trans_pcie_clear_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_XTAL_ON); + udelay(10); + + /* Release APMG XTAL */ + iwl_trans_pcie_write_shr(trans, SHR_APMG_XTAL_CFG_REG, + apmg_xtal_cfg_reg & + ~SHR_APMG_XTAL_CFG_XTAL_ON_REQ); +} + static int iwl_pcie_apm_stop_master(struct iwl_trans *trans) { int ret = 0; @@ -246,14 +373,18 @@ static int iwl_pcie_apm_stop_master(struct iwl_trans *trans) static void iwl_pcie_apm_stop(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); IWL_DEBUG_INFO(trans, "Stop card, put in low power state\n"); - clear_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); + clear_bit(STATUS_DEVICE_ENABLED, &trans->status); /* Stop device's DMA activity */ iwl_pcie_apm_stop_master(trans); + if (trans->cfg->lp_xtal_workaround) { + iwl_pcie_apm_lp_xtal_enable(trans); + return; + } + /* Reset the entire device */ iwl_set_bit(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); @@ -270,18 +401,15 @@ static void iwl_pcie_apm_stop(struct iwl_trans *trans) static int iwl_pcie_nic_init(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - unsigned long flags; /* nic_init */ - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); iwl_pcie_apm_init(trans); - /* Set interrupt coalescing calibration timer to default (512 usecs) */ - iwl_write8(trans, CSR_INT_COALESCING, IWL_HOST_INT_CALIB_TIMEOUT_DEF); + spin_unlock(&trans_pcie->irq_lock); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - - iwl_pcie_set_pwr(trans, false); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_pcie_set_pwr(trans, false); iwl_op_mode_nic_config(trans->op_mode); @@ -326,6 +454,7 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) { int ret; int t = 0; + int iter; IWL_DEBUG_INFO(trans, "iwl_trans_prepare_card_hw enter\n"); @@ -334,18 +463,23 @@ static int iwl_pcie_prepare_card_hw(struct iwl_trans *trans) if (ret >= 0) return 0; - /* If HW is not ready, prepare the conditions to check again */ - iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG, - CSR_HW_IF_CONFIG_REG_PREPARE); + for (iter = 0; iter < 10; iter++) { + /* If HW is not ready, prepare the conditions to check again */ + iwl_set_bit(trans, CSR_HW_IF_CONFIG_REG, + CSR_HW_IF_CONFIG_REG_PREPARE); + + do { + ret = iwl_pcie_set_hw_ready(trans); + if (ret >= 0) + return 0; - do { - ret = iwl_pcie_set_hw_ready(trans); - if (ret >= 0) - return 0; + usleep_range(200, 1000); + t += 200; + } while (t < 150000); + msleep(25); + } - usleep_range(200, 1000); - t += 200; - } while (t < 150000); + IWL_DEBUG_INFO(trans, "got NIC after %d iterations\n", iter); return ret; } @@ -405,20 +539,27 @@ static int iwl_pcie_load_section(struct iwl_trans *trans, u8 section_num, { u8 *v_addr; dma_addr_t p_addr; - u32 offset; + u32 offset, chunk_sz = section->len; int ret = 0; IWL_DEBUG_FW(trans, "[%d] uCode section being loaded...\n", section_num); - v_addr = dma_alloc_coherent(trans->dev, PAGE_SIZE, &p_addr, GFP_KERNEL); - if (!v_addr) - return -ENOMEM; + v_addr = dma_alloc_coherent(trans->dev, chunk_sz, &p_addr, + GFP_KERNEL | __GFP_NOWARN); + if (!v_addr) { + IWL_DEBUG_INFO(trans, "Falling back to small chunks of DMA\n"); + chunk_sz = PAGE_SIZE; + v_addr = dma_alloc_coherent(trans->dev, chunk_sz, + &p_addr, GFP_KERNEL); + if (!v_addr) + return -ENOMEM; + } - for (offset = 0; offset < section->len; offset += PAGE_SIZE) { + for (offset = 0; offset < section->len; offset += chunk_sz) { u32 copy_size; - copy_size = min_t(u32, PAGE_SIZE, section->len - offset); + copy_size = min_t(u32, chunk_sz, section->len - offset); memcpy(v_addr, (u8 *)section->data + offset, copy_size); ret = iwl_pcie_load_firmware_chunk(trans, @@ -432,26 +573,185 @@ static int iwl_pcie_load_section(struct iwl_trans *trans, u8 section_num, } } - dma_free_coherent(trans->dev, PAGE_SIZE, v_addr, p_addr); + dma_free_coherent(trans->dev, chunk_sz, v_addr, p_addr); return ret; } -static int iwl_pcie_load_given_ucode(struct iwl_trans *trans, - const struct fw_img *image) +static int iwl_pcie_load_cpu_secured_sections(struct iwl_trans *trans, + const struct fw_img *image, + int cpu, + int *first_ucode_section) { + int shift_param; int i, ret = 0; + u32 last_read_idx = 0; + + if (cpu == 1) { + shift_param = 0; + *first_ucode_section = 0; + } else { + shift_param = 16; + (*first_ucode_section)++; + } + + for (i = *first_ucode_section; i < IWL_UCODE_SECTION_MAX; i++) { + last_read_idx = i; + + if (!image->sec[i].data || + image->sec[i].offset == CPU1_CPU2_SEPARATOR_SECTION) { + IWL_DEBUG_FW(trans, + "Break since Data not valid or Empty section, sec = %d\n", + i); + break; + } + + if (i == (*first_ucode_section) + 1) + /* set CPU to started */ + iwl_set_bits_prph(trans, + CSR_UCODE_LOAD_STATUS_ADDR, + LMPM_CPU_HDRS_LOADING_COMPLETED + << shift_param); + + ret = iwl_pcie_load_section(trans, i, &image->sec[i]); + if (ret) + return ret; + } + /* image loading complete */ + iwl_set_bits_prph(trans, + CSR_UCODE_LOAD_STATUS_ADDR, + LMPM_CPU_UCODE_LOADING_COMPLETED << shift_param); + + *first_ucode_section = last_read_idx; + + return 0; +} + +static int iwl_pcie_load_cpu_sections(struct iwl_trans *trans, + const struct fw_img *image, + int cpu, + int *first_ucode_section) +{ + int shift_param; + int i, ret = 0; + u32 last_read_idx = 0; + + if (cpu == 1) { + shift_param = 0; + *first_ucode_section = 0; + } else { + shift_param = 16; + (*first_ucode_section)++; + } + + for (i = *first_ucode_section; i < IWL_UCODE_SECTION_MAX; i++) { + last_read_idx = i; - for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) { - if (!image->sec[i].data) + if (!image->sec[i].data || + image->sec[i].offset == CPU1_CPU2_SEPARATOR_SECTION) { + IWL_DEBUG_FW(trans, + "Break since Data not valid or Empty section, sec = %d\n", + i); break; + } ret = iwl_pcie_load_section(trans, i, &image->sec[i]); if (ret) return ret; } - /* Remove all resets to allow NIC to operate */ - iwl_write32(trans, CSR_RESET, 0); + if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) + iwl_set_bits_prph(trans, + CSR_UCODE_LOAD_STATUS_ADDR, + (LMPM_CPU_UCODE_LOADING_COMPLETED | + LMPM_CPU_HDRS_LOADING_COMPLETED | + LMPM_CPU_UCODE_LOADING_STARTED) << + shift_param); + + *first_ucode_section = last_read_idx; + + return 0; +} + +static int iwl_pcie_load_given_ucode(struct iwl_trans *trans, + const struct fw_img *image) +{ + int ret = 0; + int first_ucode_section; + + IWL_DEBUG_FW(trans, + "working with %s image\n", + image->is_secure ? "Secured" : "Non Secured"); + IWL_DEBUG_FW(trans, + "working with %s CPU\n", + image->is_dual_cpus ? "Dual" : "Single"); + + /* configure the ucode to be ready to get the secured image */ + if (image->is_secure) { + /* set secure boot inspector addresses */ + iwl_write_prph(trans, + LMPM_SECURE_INSPECTOR_CODE_ADDR, + LMPM_SECURE_INSPECTOR_CODE_MEM_SPACE); + + iwl_write_prph(trans, + LMPM_SECURE_INSPECTOR_DATA_ADDR, + LMPM_SECURE_INSPECTOR_DATA_MEM_SPACE); + + /* set CPU1 header address */ + iwl_write_prph(trans, + LMPM_SECURE_UCODE_LOAD_CPU1_HDR_ADDR, + LMPM_SECURE_CPU1_HDR_MEM_SPACE); + + /* load to FW the binary Secured sections of CPU1 */ + ret = iwl_pcie_load_cpu_secured_sections(trans, image, 1, + &first_ucode_section); + if (ret) + return ret; + + } else { + /* load to FW the binary Non secured sections of CPU1 */ + ret = iwl_pcie_load_cpu_sections(trans, image, 1, + &first_ucode_section); + if (ret) + return ret; + } + + if (image->is_dual_cpus) { + /* set CPU2 header address */ + iwl_write_prph(trans, + LMPM_SECURE_UCODE_LOAD_CPU2_HDR_ADDR, + LMPM_SECURE_CPU2_HDR_MEM_SPACE); + + /* load to FW the binary sections of CPU2 */ + if (image->is_secure) + ret = iwl_pcie_load_cpu_secured_sections( + trans, image, 2, + &first_ucode_section); + else + ret = iwl_pcie_load_cpu_sections(trans, image, 2, + &first_ucode_section); + if (ret) + return ret; + } + + /* release CPU reset */ + if (trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) + iwl_write_prph(trans, RELEASE_CPU_RESET, RELEASE_CPU_RESET_BIT); + else + iwl_write32(trans, CSR_RESET, 0); + + if (image->is_secure) { + /* wait for image verification to complete */ + ret = iwl_poll_prph_bit(trans, + LMPM_SECURE_BOOT_CPU1_STATUS_ADDR, + LMPM_SECURE_BOOT_STATUS_SUCCESS, + LMPM_SECURE_BOOT_STATUS_SUCCESS, + LMPM_SECURE_TIME_OUT); + + if (ret < 0) { + IWL_ERR(trans, "Time out on secure boot process\n"); + return ret; + } + } return 0; } @@ -459,7 +759,6 @@ static int iwl_pcie_load_given_ucode(struct iwl_trans *trans, static int iwl_trans_pcie_start_fw(struct iwl_trans *trans, const struct fw_img *fw, bool run_in_rfkill) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int ret; bool hw_rfkill; @@ -469,17 +768,15 @@ static int iwl_trans_pcie_start_fw(struct iwl_trans *trans, return -EIO; } - clear_bit(STATUS_FW_ERROR, &trans_pcie->status); - iwl_enable_rfkill_int(trans); /* If platform's RF_KILL switch is NOT set to KILL */ hw_rfkill = iwl_is_rfkill_set(trans); if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); + set_bit(STATUS_RFKILL, &trans->status); else - clear_bit(STATUS_RFKILL, &trans_pcie->status); - iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); + clear_bit(STATUS_RFKILL, &trans->status); + iwl_trans_pcie_rf_kill(trans, hw_rfkill); if (hw_rfkill && !run_in_rfkill) return -ERFKILL; @@ -517,12 +814,14 @@ static void iwl_trans_pcie_fw_alive(struct iwl_trans *trans, u32 scd_addr) static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - unsigned long flags; + bool hw_rfkill, was_hw_rfkill; + + was_hw_rfkill = iwl_is_rfkill_set(trans); /* tell the device to stop sending interrupts */ - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); /* device going down, Stop using ICT table */ iwl_pcie_disable_ict(trans); @@ -534,7 +833,7 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) * restart. So don't process again if the device is * already dead. */ - if (test_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status)) { + if (test_bit(STATUS_DEVICE_ENABLED, &trans->status)) { iwl_pcie_tx_stop(trans); iwl_pcie_rx_stop(trans); @@ -554,30 +853,64 @@ static void iwl_trans_pcie_stop_device(struct iwl_trans *trans) /* Upon stop, the APM issues an interrupt if HW RF kill is set. * Clean again the interrupt here */ - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); - - iwl_enable_rfkill_int(trans); + spin_unlock(&trans_pcie->irq_lock); /* stop and reset the on-board processor */ iwl_write32(trans, CSR_RESET, CSR_RESET_REG_FLAG_NEVO_RESET); /* clear all status bits */ - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); - clear_bit(STATUS_INT_ENABLED, &trans_pcie->status); - clear_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status); - clear_bit(STATUS_TPOWER_PMI, &trans_pcie->status); - clear_bit(STATUS_RFKILL, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); + clear_bit(STATUS_INT_ENABLED, &trans->status); + clear_bit(STATUS_DEVICE_ENABLED, &trans->status); + clear_bit(STATUS_TPOWER_PMI, &trans->status); + clear_bit(STATUS_RFKILL, &trans->status); + + /* + * Even if we stop the HW, we still want the RF kill + * interrupt + */ + iwl_enable_rfkill_int(trans); + + /* + * Check again since the RF kill state may have changed while + * all the interrupts were disabled, in this case we couldn't + * receive the RF kill interrupt and update the state in the + * op_mode. + * Don't call the op_mode if the rkfill state hasn't changed. + * This allows the op_mode to call stop_device from the rfkill + * notification without endless recursion. Under very rare + * circumstances, we might have a small recursion if the rfkill + * state changed exactly now while we were called from stop_device. + * This is very unlikely but can happen and is supported. + */ + hw_rfkill = iwl_is_rfkill_set(trans); + if (hw_rfkill) + set_bit(STATUS_RFKILL, &trans->status); + else + clear_bit(STATUS_RFKILL, &trans->status); + if (hw_rfkill != was_hw_rfkill) + iwl_trans_pcie_rf_kill(trans, hw_rfkill); } -static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans) +void iwl_trans_pcie_rf_kill(struct iwl_trans *trans, bool state) { - /* let the ucode operate on its own */ - iwl_write32(trans, CSR_UCODE_DRV_GP1_SET, - CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); + if (iwl_op_mode_hw_rf_kill(trans->op_mode, state)) + iwl_trans_pcie_stop_device(trans); +} +static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans, bool test) +{ iwl_disable_interrupts(trans); + + /* + * in testing mode, the host stays awake and the + * hardware won't be reset (not even partially) + */ + if (test) + return; + iwl_pcie_disable_ict(trans); iwl_clear_bit(trans, CSR_GP_CNTRL, @@ -596,11 +929,18 @@ static void iwl_trans_pcie_d3_suspend(struct iwl_trans *trans) } static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, - enum iwl_d3_status *status) + enum iwl_d3_status *status, + bool test) { u32 val; int ret; + if (test) { + iwl_enable_interrupts(trans); + *status = IWL_D3_STATUS_ALIVE; + return 0; + } + iwl_pcie_set_pwr(trans, false); val = iwl_read32(trans, CSR_RESET); @@ -636,16 +976,12 @@ static int iwl_trans_pcie_d3_resume(struct iwl_trans *trans, return ret; } - iwl_write32(trans, CSR_UCODE_DRV_GP1_CLR, - CSR_UCODE_DRV_GP1_BIT_D3_CFG_COMPLETE); - *status = IWL_D3_STATUS_ALIVE; return 0; } static int iwl_trans_pcie_start_hw(struct iwl_trans *trans) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); bool hw_rfkill; int err; @@ -655,6 +991,11 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans) return err; } + /* Reset the entire device */ + iwl_write32(trans, CSR_RESET, CSR_RESET_REG_FLAG_SW_RESET); + + usleep_range(10, 15); + iwl_pcie_apm_init(trans); /* From now on, the op_mode will be kept updated about RF kill state */ @@ -662,53 +1003,30 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans) hw_rfkill = iwl_is_rfkill_set(trans); if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); + set_bit(STATUS_RFKILL, &trans->status); else - clear_bit(STATUS_RFKILL, &trans_pcie->status); - iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); + clear_bit(STATUS_RFKILL, &trans->status); + iwl_trans_pcie_rf_kill(trans, hw_rfkill); return 0; } -static void iwl_trans_pcie_stop_hw(struct iwl_trans *trans, - bool op_mode_leaving) +static void iwl_trans_pcie_op_mode_leave(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - bool hw_rfkill; - unsigned long flags; - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + /* disable interrupts - don't enable HW RF kill interrupt */ + spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); iwl_pcie_apm_stop(trans); - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); iwl_disable_interrupts(trans); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); iwl_pcie_disable_ict(trans); - - if (!op_mode_leaving) { - /* - * Even if we stop the HW, we still want the RF kill - * interrupt - */ - iwl_enable_rfkill_int(trans); - - /* - * Check again since the RF kill state may have changed while - * all the interrupts were disabled, in this case we couldn't - * receive the RF kill interrupt and update the state in the - * op_mode. - */ - hw_rfkill = iwl_is_rfkill_set(trans); - if (hw_rfkill) - set_bit(STATUS_RFKILL, &trans_pcie->status); - else - clear_bit(STATUS_RFKILL, &trans_pcie->status); - iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); - } } static void iwl_trans_pcie_write8(struct iwl_trans *trans, u32 ofs, u8 val) @@ -741,6 +1059,12 @@ static void iwl_trans_pcie_write_prph(struct iwl_trans *trans, u32 addr, iwl_trans_pcie_write32(trans, HBUS_TARG_PRPH_WDAT, val); } +static int iwl_pcie_dummy_napi_poll(struct napi_struct *napi, int budget) +{ + WARN_ON(1); + return 0; +} + static void iwl_trans_pcie_configure(struct iwl_trans *trans, const struct iwl_trans_config *trans_cfg) { @@ -767,6 +1091,18 @@ static void iwl_trans_pcie_configure(struct iwl_trans *trans, trans_pcie->command_names = trans_cfg->command_names; trans_pcie->bc_table_dword = trans_cfg->bc_table_dword; + + /* Initialize NAPI here - it should be before registering to mac80211 + * in the opmode but after the HW struct is allocated. + * As this function may be called again in some corner cases don't + * do anything if NAPI was already initialized. + */ + if (!trans_pcie->napi.poll && trans->op_mode->ops->napi_add) { + init_dummy_netdev(&trans_pcie->napi_dev); + iwl_op_mode_napi_add(trans->op_mode, &trans_pcie->napi, + &trans_pcie->napi_dev, + iwl_pcie_dummy_napi_poll, 64); + } } void iwl_trans_pcie_free(struct iwl_trans *trans) @@ -787,44 +1123,30 @@ void iwl_trans_pcie_free(struct iwl_trans *trans) pci_disable_device(trans_pcie->pci_dev); kmem_cache_destroy(trans->dev_cmd_pool); + if (trans_pcie->napi.poll) + netif_napi_del(&trans_pcie->napi); + kfree(trans); } static void iwl_trans_pcie_set_pmi(struct iwl_trans *trans, bool state) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - if (state) - set_bit(STATUS_TPOWER_PMI, &trans_pcie->status); + set_bit(STATUS_TPOWER_PMI, &trans->status); else - clear_bit(STATUS_TPOWER_PMI, &trans_pcie->status); -} - -#ifdef CONFIG_PM_SLEEP -static int iwl_trans_pcie_suspend(struct iwl_trans *trans) -{ - return 0; + clear_bit(STATUS_TPOWER_PMI, &trans->status); } -static int iwl_trans_pcie_resume(struct iwl_trans *trans) -{ - bool hw_rfkill; - - iwl_enable_rfkill_int(trans); - - hw_rfkill = iwl_is_rfkill_set(trans); - iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill); - - return 0; -} -#endif /* CONFIG_PM_SLEEP */ - static bool iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans, bool silent, unsigned long *flags) { int ret; - struct iwl_trans_pcie *pcie_trans = IWL_TRANS_GET_PCIE_TRANS(trans); - spin_lock_irqsave(&pcie_trans->reg_lock, *flags); + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + + spin_lock_irqsave(&trans_pcie->reg_lock, *flags); + + if (trans_pcie->cmd_in_flight) + goto out; /* this bit wakes up the NIC */ __iwl_trans_pcie_set_bit(trans, CSR_GP_CNTRL, @@ -860,31 +1182,35 @@ static bool iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans, bool silent, WARN_ONCE(1, "Timeout waiting for hardware access (CSR_GP_CNTRL 0x%08x)\n", val); - spin_unlock_irqrestore(&pcie_trans->reg_lock, *flags); + spin_unlock_irqrestore(&trans_pcie->reg_lock, *flags); return false; } } +out: /* * Fool sparse by faking we release the lock - sparse will * track nic_access anyway. */ - __release(&pcie_trans->reg_lock); + __release(&trans_pcie->reg_lock); return true; } static void iwl_trans_pcie_release_nic_access(struct iwl_trans *trans, unsigned long *flags) { - struct iwl_trans_pcie *pcie_trans = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - lockdep_assert_held(&pcie_trans->reg_lock); + lockdep_assert_held(&trans_pcie->reg_lock); /* * Fool sparse by faking we acquiring the lock - sparse will * track nic_access anyway. */ - __acquire(&pcie_trans->reg_lock); + __acquire(&trans_pcie->reg_lock); + + if (trans_pcie->cmd_in_flight) + goto out; __iwl_trans_pcie_clear_bit(trans, CSR_GP_CNTRL, CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); @@ -895,7 +1221,8 @@ static void iwl_trans_pcie_release_nic_access(struct iwl_trans *trans, * scheduled on different CPUs (after we drop reg_lock). */ mmiowb(); - spin_unlock_irqrestore(&pcie_trans->reg_lock, *flags); +out: + spin_unlock_irqrestore(&trans_pcie->reg_lock, *flags); } static int iwl_trans_pcie_read_mem(struct iwl_trans *trans, u32 addr, @@ -917,11 +1244,11 @@ static int iwl_trans_pcie_read_mem(struct iwl_trans *trans, u32 addr, } static int iwl_trans_pcie_write_mem(struct iwl_trans *trans, u32 addr, - void *buf, int dwords) + const void *buf, int dwords) { unsigned long flags; int offs, ret = 0; - u32 *vals = buf; + const u32 *vals = buf; if (iwl_trans_grab_nic_access(trans, false, &flags)) { iwl_write32(trans, HBUS_TARG_MEM_WADDR, addr); @@ -937,7 +1264,7 @@ static int iwl_trans_pcie_write_mem(struct iwl_trans *trans, u32 addr, #define IWL_FLUSH_WAIT_MS 2000 -static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans) +static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans, u32 txq_bm) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_txq *txq; @@ -950,13 +1277,31 @@ static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans) /* waiting for all the tx frames complete might take a while */ for (cnt = 0; cnt < trans->cfg->base_params->num_of_queues; cnt++) { + u8 wr_ptr; + if (cnt == trans_pcie->cmd_queue) continue; + if (!test_bit(cnt, trans_pcie->queue_used)) + continue; + if (!(BIT(cnt) & txq_bm)) + continue; + + IWL_DEBUG_TX_QUEUES(trans, "Emptying queue %d...\n", cnt); txq = &trans_pcie->txq[cnt]; q = &txq->q; - while (q->read_ptr != q->write_ptr && !time_after(jiffies, - now + msecs_to_jiffies(IWL_FLUSH_WAIT_MS))) + wr_ptr = ACCESS_ONCE(q->write_ptr); + + while (q->read_ptr != ACCESS_ONCE(q->write_ptr) && + !time_after(jiffies, + now + msecs_to_jiffies(IWL_FLUSH_WAIT_MS))) { + u8 write_ptr = ACCESS_ONCE(q->write_ptr); + + if (WARN_ONCE(wr_ptr != write_ptr, + "WR pointer moved while flushing %d -> %d\n", + wr_ptr, write_ptr)) + return -ETIMEDOUT; msleep(1); + } if (q->read_ptr != q->write_ptr) { IWL_ERR(trans, @@ -964,6 +1309,7 @@ static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans) ret = -ETIMEDOUT; break; } + IWL_DEBUG_TX_QUEUES(trans, "Queue %d is now empty.\n", cnt); } if (!ret) @@ -998,8 +1344,8 @@ static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans) IWL_ERR(trans, "Q %d is %sactive and mapped to fifo %d ra_tid 0x%04x [%d,%d]\n", cnt, active ? "" : "in", fifo, tbl_dw, - iwl_read_prph(trans, - SCD_QUEUE_RDPTR(cnt)) & (txq->q.n_bd - 1), + iwl_read_prph(trans, SCD_QUEUE_RDPTR(cnt)) & + (TFD_QUEUE_SIZE_MAX - 1), iwl_read_prph(trans, SCD_QUEUE_WRPTR(cnt))); } @@ -1017,71 +1363,6 @@ static void iwl_trans_pcie_set_bits_mask(struct iwl_trans *trans, u32 reg, spin_unlock_irqrestore(&trans_pcie->reg_lock, flags); } -static const char *get_fh_string(int cmd) -{ -#define IWL_CMD(x) case x: return #x - switch (cmd) { - IWL_CMD(FH_RSCSR_CHNL0_STTS_WPTR_REG); - IWL_CMD(FH_RSCSR_CHNL0_RBDCB_BASE_REG); - IWL_CMD(FH_RSCSR_CHNL0_WPTR); - IWL_CMD(FH_MEM_RCSR_CHNL0_CONFIG_REG); - IWL_CMD(FH_MEM_RSSR_SHARED_CTRL_REG); - IWL_CMD(FH_MEM_RSSR_RX_STATUS_REG); - IWL_CMD(FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV); - IWL_CMD(FH_TSSR_TX_STATUS_REG); - IWL_CMD(FH_TSSR_TX_ERROR_REG); - default: - return "UNKNOWN"; - } -#undef IWL_CMD -} - -int iwl_pcie_dump_fh(struct iwl_trans *trans, char **buf) -{ - int i; - static const u32 fh_tbl[] = { - FH_RSCSR_CHNL0_STTS_WPTR_REG, - FH_RSCSR_CHNL0_RBDCB_BASE_REG, - FH_RSCSR_CHNL0_WPTR, - FH_MEM_RCSR_CHNL0_CONFIG_REG, - FH_MEM_RSSR_SHARED_CTRL_REG, - FH_MEM_RSSR_RX_STATUS_REG, - FH_MEM_RSSR_RX_ENABLE_ERR_IRQ2DRV, - FH_TSSR_TX_STATUS_REG, - FH_TSSR_TX_ERROR_REG - }; - -#ifdef CONFIG_IWLWIFI_DEBUGFS - if (buf) { - int pos = 0; - size_t bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40; - - *buf = kmalloc(bufsz, GFP_KERNEL); - if (!*buf) - return -ENOMEM; - - pos += scnprintf(*buf + pos, bufsz - pos, - "FH register values:\n"); - - for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) - pos += scnprintf(*buf + pos, bufsz - pos, - " %34s: 0X%08x\n", - get_fh_string(fh_tbl[i]), - iwl_read_direct32(trans, fh_tbl[i])); - - return pos; - } -#endif - - IWL_ERR(trans, "FH register values:\n"); - for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) - IWL_ERR(trans, " %34s: 0X%08x\n", - get_fh_string(fh_tbl[i]), - iwl_read_direct32(trans, fh_tbl[i])); - - return 0; -} - static const char *get_csr_string(int cmd) { #define IWL_CMD(x) case x: return #x @@ -1108,6 +1389,7 @@ static const char *get_csr_string(int cmd) IWL_CMD(CSR_GIO_CHICKEN_BITS); IWL_CMD(CSR_ANA_PLL_CFG); IWL_CMD(CSR_HW_REV_WA_REG); + IWL_CMD(CSR_MONITOR_STATUS_REG); IWL_CMD(CSR_DBG_HPET_MEM_REG); default: return "UNKNOWN"; @@ -1140,6 +1422,7 @@ void iwl_pcie_dump_csr(struct iwl_trans *trans) CSR_DRAM_INT_TBL_REG, CSR_GIO_CHICKEN_BITS, CSR_ANA_PLL_CFG, + CSR_MONITOR_STATUS_REG, CSR_HW_REV_WA_REG, CSR_DBG_HPET_MEM_REG }; @@ -1162,18 +1445,7 @@ void iwl_pcie_dump_csr(struct iwl_trans *trans) } while (0) /* file operation */ -#define DEBUGFS_READ_FUNC(name) \ -static ssize_t iwl_dbgfs_##name##_read(struct file *file, \ - char __user *user_buf, \ - size_t count, loff_t *ppos); - -#define DEBUGFS_WRITE_FUNC(name) \ -static ssize_t iwl_dbgfs_##name##_write(struct file *file, \ - const char __user *user_buf, \ - size_t count, loff_t *ppos); - #define DEBUGFS_READ_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .read = iwl_dbgfs_##name##_read, \ .open = simple_open, \ @@ -1181,7 +1453,6 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ }; #define DEBUGFS_WRITE_FILE_OPS(name) \ - DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .open = simple_open, \ @@ -1189,8 +1460,6 @@ static const struct file_operations iwl_dbgfs_##name##_ops = { \ }; #define DEBUGFS_READ_WRITE_FILE_OPS(name) \ - DEBUGFS_READ_FUNC(name); \ - DEBUGFS_WRITE_FUNC(name); \ static const struct file_operations iwl_dbgfs_##name##_ops = { \ .write = iwl_dbgfs_##name##_write, \ .read = iwl_dbgfs_##name##_read, \ @@ -1371,16 +1640,15 @@ static ssize_t iwl_dbgfs_fh_reg_read(struct file *file, { struct iwl_trans *trans = file->private_data; char *buf = NULL; - int pos = 0; - ssize_t ret = -EFAULT; - - ret = pos = iwl_pcie_dump_fh(trans, &buf); - if (buf) { - ret = simple_read_from_buffer(user_buf, - count, ppos, buf, pos); - kfree(buf); - } + ssize_t ret; + ret = iwl_dump_fh(trans, &buf); + if (ret < 0) + return ret; + if (!buf) + return -EINVAL; + ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); + kfree(buf); return ret; } @@ -1408,6 +1676,61 @@ err: IWL_ERR(trans, "failed to create the trans debugfs entry\n"); return -ENOMEM; } + +static u32 iwl_trans_pcie_get_cmdlen(struct iwl_tfd *tfd) +{ + u32 cmdlen = 0; + int i; + + for (i = 0; i < IWL_NUM_OF_TBS; i++) + cmdlen += iwl_pcie_tfd_tb_get_len(tfd, i); + + return cmdlen; +} + +static u32 iwl_trans_pcie_dump_data(struct iwl_trans *trans, + void *buf, u32 buflen) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + struct iwl_fw_error_dump_data *data; + struct iwl_txq *cmdq = &trans_pcie->txq[trans_pcie->cmd_queue]; + struct iwl_fw_error_dump_txcmd *txcmd; + u32 len; + int i, ptr; + + if (!buf) + return sizeof(*data) + + cmdq->q.n_window * (sizeof(*txcmd) + + TFD_MAX_PAYLOAD_SIZE); + + len = 0; + data = buf; + data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXCMD); + txcmd = (void *)data->data; + spin_lock_bh(&cmdq->lock); + ptr = cmdq->q.write_ptr; + for (i = 0; i < cmdq->q.n_window; i++) { + u8 idx = get_cmd_index(&cmdq->q, ptr); + u32 caplen, cmdlen; + + cmdlen = iwl_trans_pcie_get_cmdlen(&cmdq->tfds[ptr]); + caplen = min_t(u32, TFD_MAX_PAYLOAD_SIZE, cmdlen); + + if (cmdlen) { + len += sizeof(*txcmd) + caplen; + txcmd->cmdlen = cpu_to_le32(cmdlen); + txcmd->caplen = cpu_to_le32(caplen); + memcpy(txcmd->data, cmdq->entries[idx].cmd, caplen); + txcmd = (void *)((u8 *)txcmd->data + caplen); + } + + ptr = iwl_queue_dec_wrap(ptr); + } + spin_unlock_bh(&cmdq->lock); + + data->len = cpu_to_le32(len); + return sizeof(*data) + len; +} #else static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, struct dentry *dir) @@ -1418,7 +1741,7 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans, static const struct iwl_trans_ops trans_ops_pcie = { .start_hw = iwl_trans_pcie_start_hw, - .stop_hw = iwl_trans_pcie_stop_hw, + .op_mode_leave = iwl_trans_pcie_op_mode_leave, .fw_alive = iwl_trans_pcie_fw_alive, .start_fw = iwl_trans_pcie_start_fw, .stop_device = iwl_trans_pcie_stop_device, @@ -1438,10 +1761,6 @@ static const struct iwl_trans_ops trans_ops_pcie = { .wait_tx_queue_empty = iwl_trans_pcie_wait_txq_empty, -#ifdef CONFIG_PM_SLEEP - .suspend = iwl_trans_pcie_suspend, - .resume = iwl_trans_pcie_resume, -#endif .write8 = iwl_trans_pcie_write8, .write32 = iwl_trans_pcie_write32, .read32 = iwl_trans_pcie_read32, @@ -1454,6 +1773,10 @@ static const struct iwl_trans_ops trans_ops_pcie = { .grab_nic_access = iwl_trans_pcie_grab_nic_access, .release_nic_access = iwl_trans_pcie_release_nic_access, .set_bits_mask = iwl_trans_pcie_set_bits_mask, + +#ifdef CONFIG_IWLWIFI_DEBUGFS + .dump_data = iwl_trans_pcie_dump_data, +#endif }; struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, @@ -1467,9 +1790,10 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, trans = kzalloc(sizeof(struct iwl_trans) + sizeof(struct iwl_trans_pcie), GFP_KERNEL); - - if (!trans) - return NULL; + if (!trans) { + err = -ENOMEM; + goto out; + } trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); @@ -1481,14 +1805,19 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, spin_lock_init(&trans_pcie->reg_lock); init_waitqueue_head(&trans_pcie->ucode_write_waitq); - /* W/A - seems to solve weird behavior. We need to remove this if we - * don't want to stay in L1 all the time. This wastes a lot of power */ - pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 | - PCIE_LINK_STATE_CLKPM); - - if (pci_enable_device(pdev)) { - err = -ENODEV; + err = pci_enable_device(pdev); + if (err) goto out_no_pci; + + if (!cfg->base_params->pcie_l1_allowed) { + /* + * W/A - seems to solve weird behavior. We need to remove this + * if we don't want to stay in L1 all the time. This wastes a + * lot of power. + */ + pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | + PCIE_LINK_STATE_L1 | + PCIE_LINK_STATE_CLKPM); } pci_set_master(pdev); @@ -1525,6 +1854,10 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, * PCI Tx retries from interfering with C3 CPU state */ pci_write_config_byte(pdev, PCI_CFG_RETRY_TIMEOUT, 0x00); + trans->dev = &pdev->dev; + trans_pcie->pci_dev = pdev; + iwl_disable_interrupts(trans); + err = pci_enable_msi(pdev); if (err) { dev_err(&pdev->dev, "pci_enable_msi failed(0X%x)\n", err); @@ -1536,8 +1869,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, } } - trans->dev = &pdev->dev; - trans_pcie->pci_dev = pdev; trans->hw_rev = iwl_read32(trans, CSR_HW_REV); trans->hw_id = (pdev->device << 16) + pdev->subsystem_device; snprintf(trans->hw_id_str, sizeof(trans->hw_id_str), @@ -1558,21 +1889,24 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev, SLAB_HWCACHE_ALIGN, NULL); - if (!trans->dev_cmd_pool) + if (!trans->dev_cmd_pool) { + err = -ENOMEM; goto out_pci_disable_msi; - - trans_pcie->inta_mask = CSR_INI_SET_MASK; + } if (iwl_pcie_alloc_ict(trans)) goto out_free_cmd_pool; - if (request_threaded_irq(pdev->irq, iwl_pcie_isr_ict, - iwl_pcie_irq_handler, - IRQF_SHARED, DRV_NAME, trans)) { + err = request_threaded_irq(pdev->irq, iwl_pcie_isr, + iwl_pcie_irq_handler, + IRQF_SHARED, DRV_NAME, trans); + if (err) { IWL_ERR(trans, "Error allocating IRQ %d\n", pdev->irq); goto out_free_ict; } + trans_pcie->inta_mask = CSR_INI_SET_MASK; + return trans; out_free_ict: @@ -1587,5 +1921,6 @@ out_pci_disable_device: pci_disable_device(pdev); out_no_pci: kfree(trans); - return NULL; +out: + return ERR_PTR(err); } diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index c5e30294c5a..038940afbdc 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -1,6 +1,6 @@ /****************************************************************************** * - * Copyright(c) 2003 - 2013 Intel Corporation. All rights reserved. + * Copyright(c) 2003 - 2014 Intel Corporation. All rights reserved. * * Portions of this file are derived from the ipw3945 project, as well * as portions of the ieee80211 subsystem header files. @@ -65,34 +65,40 @@ ***************************************************/ static int iwl_queue_space(const struct iwl_queue *q) { - int s = q->read_ptr - q->write_ptr; - - if (q->read_ptr > q->write_ptr) - s -= q->n_bd; - - if (s <= 0) - s += q->n_window; - /* keep some reserve to not confuse empty and full situations */ - s -= 2; - if (s < 0) - s = 0; - return s; + unsigned int max; + unsigned int used; + + /* + * To avoid ambiguity between empty and completely full queues, there + * should always be less than TFD_QUEUE_SIZE_MAX elements in the queue. + * If q->n_window is smaller than TFD_QUEUE_SIZE_MAX, there is no need + * to reserve any queue entries for this purpose. + */ + if (q->n_window < TFD_QUEUE_SIZE_MAX) + max = q->n_window; + else + max = TFD_QUEUE_SIZE_MAX - 1; + + /* + * TFD_QUEUE_SIZE_MAX is a power of 2, so the following is equivalent to + * modulo by TFD_QUEUE_SIZE_MAX and is well defined. + */ + used = (q->write_ptr - q->read_ptr) & (TFD_QUEUE_SIZE_MAX - 1); + + if (WARN_ON(used > max)) + return 0; + + return max - used; } /* * iwl_queue_init - Initialize queue's high/low-water and read/write indexes */ -static int iwl_queue_init(struct iwl_queue *q, int count, int slots_num, u32 id) +static int iwl_queue_init(struct iwl_queue *q, int slots_num, u32 id) { - q->n_bd = count; q->n_window = slots_num; q->id = id; - /* count must be power-of-two size, otherwise iwl_queue_inc_wrap - * and iwl_queue_dec_wrap are broken. */ - if (WARN_ON(!is_power_of_2(count))) - return -EINVAL; - /* slots_num must be power-of-two size, otherwise * get_cmd_index is broken. */ if (WARN_ON(!is_power_of_2(slots_num))) @@ -185,17 +191,17 @@ static void iwl_pcie_txq_stuck_timer(unsigned long data) IWL_ERR(trans, "Q %d is %sactive and mapped to fifo %d ra_tid 0x%04x [%d,%d]\n", i, active ? "" : "in", fifo, tbl_dw, - iwl_read_prph(trans, - SCD_QUEUE_RDPTR(i)) & (txq->q.n_bd - 1), + iwl_read_prph(trans, SCD_QUEUE_RDPTR(i)) & + (TFD_QUEUE_SIZE_MAX - 1), iwl_read_prph(trans, SCD_QUEUE_WRPTR(i))); } for (i = q->read_ptr; i != q->write_ptr; - i = iwl_queue_inc_wrap(i, q->n_bd)) + i = iwl_queue_inc_wrap(i)) IWL_ERR(trans, "scratch %d = 0x%08x\n", i, le32_to_cpu(txq->scratchbufs[i].scratch)); - iwl_op_mode_nic_error(trans->op_mode); + iwl_force_nmi(trans); } /* @@ -224,13 +230,13 @@ static void iwl_pcie_txq_update_byte_cnt_tbl(struct iwl_trans *trans, switch (sec_ctl & TX_CMD_SEC_MSK) { case TX_CMD_SEC_CCM: - len += CCMP_MIC_LEN; + len += IEEE80211_CCMP_MIC_LEN; break; case TX_CMD_SEC_TKIP: - len += TKIP_ICV_LEN; + len += IEEE80211_TKIP_ICV_LEN; break; case TX_CMD_SEC_WEP: - len += WEP_IV_LEN + WEP_ICV_LEN; + len += IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN; break; } @@ -275,53 +281,64 @@ static void iwl_pcie_txq_inval_byte_cnt_tbl(struct iwl_trans *trans, /* * iwl_pcie_txq_inc_wr_ptr - Send new write index to hardware */ -void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans, struct iwl_txq *txq) +static void iwl_pcie_txq_inc_wr_ptr(struct iwl_trans *trans, + struct iwl_txq *txq) { + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); u32 reg = 0; int txq_id = txq->q.id; - if (txq->need_update == 0) - return; + lockdep_assert_held(&txq->lock); - if (trans->cfg->base_params->shadow_reg_enable) { - /* shadow register enabled */ - iwl_write32(trans, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); - } else { - struct iwl_trans_pcie *trans_pcie = - IWL_TRANS_GET_PCIE_TRANS(trans); - /* if we're trying to save power */ - if (test_bit(STATUS_TPOWER_PMI, &trans_pcie->status)) { - /* wake up nic if it's powered down ... - * uCode will wake up, and interrupt us again, so next - * time we'll skip this part. */ - reg = iwl_read32(trans, CSR_UCODE_DRV_GP1); - - if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { - IWL_DEBUG_INFO(trans, - "Tx queue %d requesting wakeup," - " GP1 = 0x%x\n", txq_id, reg); - iwl_set_bit(trans, CSR_GP_CNTRL, - CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); - return; - } + /* + * explicitly wake up the NIC if: + * 1. shadow registers aren't enabled + * 2. NIC is woken up for CMD regardless of shadow outside this function + * 3. there is a chance that the NIC is asleep + */ + if (!trans->cfg->base_params->shadow_reg_enable && + txq_id != trans_pcie->cmd_queue && + test_bit(STATUS_TPOWER_PMI, &trans->status)) { + /* + * wake up nic if it's powered down ... + * uCode will wake up, and interrupt us again, so next + * time we'll skip this part. + */ + reg = iwl_read32(trans, CSR_UCODE_DRV_GP1); + + if (reg & CSR_UCODE_DRV_GP1_BIT_MAC_SLEEP) { + IWL_DEBUG_INFO(trans, "Tx queue %d requesting wakeup, GP1 = 0x%x\n", + txq_id, reg); + iwl_set_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + txq->need_update = true; + return; + } + } - IWL_DEBUG_TX(trans, "Q:%d WR: 0x%x\n", txq_id, - txq->q.write_ptr); + /* + * if not in power-save mode, uCode will never sleep when we're + * trying to tx (during RFKILL, we're not trying to tx). + */ + IWL_DEBUG_TX(trans, "Q:%d WR: 0x%x\n", txq_id, txq->q.write_ptr); + iwl_write32(trans, HBUS_TARG_WRPTR, txq->q.write_ptr | (txq_id << 8)); +} - iwl_write_direct32(trans, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); +void iwl_pcie_txq_check_wrptrs(struct iwl_trans *trans) +{ + struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); + int i; - /* - * else not in power-save mode, - * uCode will never sleep when we're - * trying to tx (during RFKILL, we're not trying to tx). - */ - } else - iwl_write32(trans, HBUS_TARG_WRPTR, - txq->q.write_ptr | (txq_id << 8)); + for (i = 0; i < trans->cfg->base_params->num_of_queues; i++) { + struct iwl_txq *txq = &trans_pcie->txq[i]; + + spin_lock_bh(&txq->lock); + if (trans_pcie->txq[i].need_update) { + iwl_pcie_txq_inc_wr_ptr(trans, txq); + trans_pcie->txq[i].need_update = false; + } + spin_unlock_bh(&txq->lock); } - txq->need_update = 0; } static inline dma_addr_t iwl_pcie_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) @@ -336,13 +353,6 @@ static inline dma_addr_t iwl_pcie_tfd_tb_get_addr(struct iwl_tfd *tfd, u8 idx) return addr; } -static inline u16 iwl_pcie_tfd_tb_get_len(struct iwl_tfd *tfd, u8 idx) -{ - struct iwl_tfd_tb *tb = &tfd->tbs[idx]; - - return le16_to_cpu(tb->hi_n_len) >> 4; -} - static inline void iwl_pcie_tfd_set_tb(struct iwl_tfd *tfd, u8 idx, dma_addr_t addr, u16 len) { @@ -402,13 +412,17 @@ static void iwl_pcie_txq_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq) { struct iwl_tfd *tfd_tmp = txq->tfds; - /* rd_ptr is bounded by n_bd and idx is bounded by n_window */ + /* rd_ptr is bounded by TFD_QUEUE_SIZE_MAX and + * idx is bounded by n_window + */ int rd_ptr = txq->q.read_ptr; int idx = get_cmd_index(&txq->q, rd_ptr); lockdep_assert_held(&txq->lock); - /* We have only q->n_window txq->entries, but we use q->n_bd tfds */ + /* We have only q->n_window txq->entries, but we use + * TFD_QUEUE_SIZE_MAX tfds + */ iwl_pcie_tfd_unmap(trans, &txq->entries[idx].meta, &tfd_tmp[rd_ptr]); /* free SKB */ @@ -429,7 +443,7 @@ static void iwl_pcie_txq_free_tfd(struct iwl_trans *trans, struct iwl_txq *txq) } static int iwl_pcie_txq_build_tfd(struct iwl_trans *trans, struct iwl_txq *txq, - dma_addr_t addr, u16 len, u8 reset) + dma_addr_t addr, u16 len, bool reset) { struct iwl_queue *q; struct iwl_tfd *tfd, *tfd_tmp; @@ -451,13 +465,10 @@ static int iwl_pcie_txq_build_tfd(struct iwl_trans *trans, struct iwl_txq *txq, return -EINVAL; } - if (WARN_ON(addr & ~DMA_BIT_MASK(36))) + if (WARN(addr & ~IWL_TX_DMA_MASK, + "Unaligned address = %llx\n", (unsigned long long)addr)) return -EINVAL; - if (unlikely(addr & ~IWL_TX_DMA_MASK)) - IWL_ERR(trans, "Unaligned address = %llx\n", - (unsigned long long)addr); - iwl_pcie_tfd_set_tb(tfd, num_tbs, addr, len); return 0; @@ -538,15 +549,14 @@ static int iwl_pcie_txq_init(struct iwl_trans *trans, struct iwl_txq *txq, { int ret; - txq->need_update = 0; + txq->need_update = false; /* TFD_QUEUE_SIZE_MAX must be power-of-two size, otherwise * iwl_queue_inc_wrap and iwl_queue_dec_wrap are broken. */ BUILD_BUG_ON(TFD_QUEUE_SIZE_MAX & (TFD_QUEUE_SIZE_MAX - 1)); /* Initialize queue's high/low-water marks, and head/tail indexes */ - ret = iwl_queue_init(&txq->q, TFD_QUEUE_SIZE_MAX, slots_num, - txq_id); + ret = iwl_queue_init(&txq->q, slots_num, txq_id); if (ret) return ret; @@ -571,15 +581,18 @@ static void iwl_pcie_txq_unmap(struct iwl_trans *trans, int txq_id) struct iwl_txq *txq = &trans_pcie->txq[txq_id]; struct iwl_queue *q = &txq->q; - if (!q->n_bd) - return; - spin_lock_bh(&txq->lock); while (q->write_ptr != q->read_ptr) { + IWL_DEBUG_TX_REPLY(trans, "Q %d Free %d\n", + txq_id, q->read_ptr); iwl_pcie_txq_free_tfd(trans, txq); - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd); + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr); } + txq->active = false; spin_unlock_bh(&txq->lock); + + /* just in case - this queue may have been stopped */ + iwl_wake_queue(trans, txq); } /* @@ -610,10 +623,12 @@ static void iwl_pcie_txq_free(struct iwl_trans *trans, int txq_id) } /* De-alloc circular buffer of TFDs */ - if (txq->q.n_bd) { - dma_free_coherent(dev, sizeof(struct iwl_tfd) * - txq->q.n_bd, txq->tfds, txq->q.dma_addr); + if (txq->tfds) { + dma_free_coherent(dev, + sizeof(struct iwl_tfd) * TFD_QUEUE_SIZE_MAX, + txq->tfds, txq->q.dma_addr); txq->q.dma_addr = 0; + txq->tfds = NULL; dma_free_coherent(dev, sizeof(*txq->scratchbufs) * txq->q.n_window, @@ -670,7 +685,8 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr) /* The chain extension of the SCD doesn't work well. This feature is * enabled by default by the HW, so we need to disable it manually. */ - iwl_write_prph(trans, SCD_CHAINEXT_EN, 0); + if (trans->cfg->base_params->scd_chain_ext_wa) + iwl_write_prph(trans, SCD_CHAINEXT_EN, 0); iwl_trans_ac_txq_enable(trans, trans_pcie->cmd_queue, trans_pcie->cmd_fifo); @@ -690,8 +706,9 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr) reg_val | FH_TX_CHICKEN_BITS_SCD_AUTO_RETRY_EN); /* Enable L1-Active */ - iwl_clear_bits_prph(trans, APMG_PCIDEV_STT_REG, - APMG_PCIDEV_STT_VAL_L1_ACT_DIS); + if (trans->cfg->device_family != IWL_DEVICE_FAMILY_8000) + iwl_clear_bits_prph(trans, APMG_PCIDEV_STT_REG, + APMG_PCIDEV_STT_VAL_L1_ACT_DIS); } void iwl_trans_pcie_tx_reset(struct iwl_trans *trans) @@ -724,10 +741,9 @@ int iwl_pcie_tx_stop(struct iwl_trans *trans) { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int ch, txq_id, ret; - unsigned long flags; /* Turn off all Tx DMA fifos */ - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); iwl_pcie_txq_set_sched(trans, 0); @@ -744,13 +760,19 @@ int iwl_pcie_tx_stop(struct iwl_trans *trans) iwl_read_direct32(trans, FH_TSSR_TX_STATUS_REG)); } - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); - if (!trans_pcie->txq) { - IWL_WARN(trans, - "Stopping tx queues that aren't allocated...\n"); + /* + * This function can be called before the op_mode disabled the + * queues. This happens when we have an rfkill interrupt. + * Since we stop Tx altogether - mark the queues as stopped. + */ + memset(trans_pcie->queue_stopped, 0, sizeof(trans_pcie->queue_stopped)); + memset(trans_pcie->queue_used, 0, sizeof(trans_pcie->queue_used)); + + /* This can happen: start_hw, stop_device */ + if (!trans_pcie->txq) return 0; - } /* Unmap DMA from host system and free skb's */ for (txq_id = 0; txq_id < trans->cfg->base_params->num_of_queues; @@ -823,7 +845,7 @@ static int iwl_pcie_tx_alloc(struct iwl_trans *trans) sizeof(struct iwl_txq), GFP_KERNEL); if (!trans_pcie->txq) { IWL_ERR(trans, "Not enough memory for txq\n"); - ret = ENOMEM; + ret = -ENOMEM; goto error; } @@ -852,7 +874,6 @@ int iwl_pcie_tx_init(struct iwl_trans *trans) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); int ret; int txq_id, slots_num; - unsigned long flags; bool alloc = false; if (!trans_pcie->txq) { @@ -862,7 +883,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans) alloc = true; } - spin_lock_irqsave(&trans_pcie->irq_lock, flags); + spin_lock(&trans_pcie->irq_lock); /* Turn off all Tx DMA fifos */ iwl_write_prph(trans, SCD_TXFACT, 0); @@ -871,7 +892,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans) iwl_write_direct32(trans, FH_KW_MEM_ADDR_REG, trans_pcie->kw.dma >> 4); - spin_unlock_irqrestore(&trans_pcie->irq_lock, flags); + spin_unlock(&trans_pcie->irq_lock); /* Alloc and init all Tx queues, including the command queue (#4/#9) */ for (txq_id = 0; txq_id < trans->cfg->base_params->num_of_queues; @@ -916,8 +937,7 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, { struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_txq *txq = &trans_pcie->txq[txq_id]; - /* n_bd is usually 256 => n_bd - 1 = 0xff */ - int tfd_num = ssn & (txq->q.n_bd - 1); + int tfd_num = ssn & (TFD_QUEUE_SIZE_MAX - 1); struct iwl_queue *q = &txq->q; int last_to_free; @@ -927,6 +947,12 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, spin_lock_bh(&txq->lock); + if (!txq->active) { + IWL_DEBUG_TX_QUEUES(trans, "Q %d inactive - ignoring idx %d\n", + txq_id, ssn); + goto out; + } + if (txq->q.read_ptr == tfd_num) goto out; @@ -935,12 +961,12 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, /*Since we free until index _not_ inclusive, the one before index is * the last we will free. This one must be used */ - last_to_free = iwl_queue_dec_wrap(tfd_num, q->n_bd); + last_to_free = iwl_queue_dec_wrap(tfd_num); if (!iwl_queue_used(q, last_to_free)) { IWL_ERR(trans, "%s: Read index for DMA queue txq id (%d), last_to_free %d is out of range [0-%d] %d %d.\n", - __func__, txq_id, last_to_free, q->n_bd, + __func__, txq_id, last_to_free, TFD_QUEUE_SIZE_MAX, q->write_ptr, q->read_ptr); goto out; } @@ -950,7 +976,7 @@ void iwl_trans_pcie_reclaim(struct iwl_trans *trans, int txq_id, int ssn, for (; q->read_ptr != tfd_num; - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr)) { if (WARN_ON_ONCE(txq->entries[txq->q.read_ptr].skb == NULL)) continue; @@ -984,28 +1010,40 @@ static void iwl_pcie_cmdq_reclaim(struct iwl_trans *trans, int txq_id, int idx) struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); struct iwl_txq *txq = &trans_pcie->txq[txq_id]; struct iwl_queue *q = &txq->q; + unsigned long flags; int nfreed = 0; lockdep_assert_held(&txq->lock); - if ((idx >= q->n_bd) || (!iwl_queue_used(q, idx))) { + if ((idx >= TFD_QUEUE_SIZE_MAX) || (!iwl_queue_used(q, idx))) { IWL_ERR(trans, "%s: Read index for DMA queue txq id (%d), index %d is out of range [0-%d] %d %d.\n", - __func__, txq_id, idx, q->n_bd, + __func__, txq_id, idx, TFD_QUEUE_SIZE_MAX, q->write_ptr, q->read_ptr); return; } - for (idx = iwl_queue_inc_wrap(idx, q->n_bd); q->read_ptr != idx; - q->read_ptr = iwl_queue_inc_wrap(q->read_ptr, q->n_bd)) { + for (idx = iwl_queue_inc_wrap(idx); q->read_ptr != idx; + q->read_ptr = iwl_queue_inc_wrap(q->read_ptr)) { if (nfreed++ > 0) { IWL_ERR(trans, "HCMD skipped: index (%d) %d %d\n", idx, q->write_ptr, q->read_ptr); - iwl_op_mode_nic_error(trans->op_mode); + iwl_force_nmi(trans); } } + if (trans->cfg->base_params->apmg_wake_up_wa && + q->read_ptr == q->write_ptr) { + spin_lock_irqsave(&trans_pcie->reg_lock, flags); + WARN_ON(!trans_pcie->cmd_in_flight); + trans_pcie->cmd_in_flight = false; + __iwl_trans_pcie_clear_bit(trans, + CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + spin_unlock_irqrestore(&trans_pcie->reg_lock, flags); + } + iwl_pcie_txq_progress(trans_pcie, txq); } @@ -1045,6 +1083,10 @@ static inline void iwl_pcie_txq_set_inactive(struct iwl_trans *trans, (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); } +/* Receiver address (actually, Rx station's index into station table), + * combined with Traffic ID (QOS priority), in format used by Tx Scheduler */ +#define BUILD_RAxTID(sta_id, tid) (((sta_id) << 4) + (tid)) + void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, int sta_id, int tid, int frame_limit, u16 ssn) { @@ -1069,6 +1111,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, /* enable aggregations for the queue */ iwl_set_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id)); + trans_pcie->txq[txq_id].ampdu = true; } else { /* * disable aggregations for the queue, this will also make the @@ -1076,6 +1119,8 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, * non-AGG queue. */ iwl_clear_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id)); + + ssn = trans_pcie->txq[txq_id].q.read_ptr; } /* Place first TFD at index corresponding to start sequence number. @@ -1103,6 +1148,7 @@ void iwl_trans_pcie_txq_enable(struct iwl_trans *trans, int txq_id, int fifo, (fifo << SCD_QUEUE_STTS_REG_POS_TXF) | (1 << SCD_QUEUE_STTS_REG_POS_WSL) | SCD_QUEUE_STTS_REG_MSK); + trans_pcie->txq[txq_id].active = true; IWL_DEBUG_TX_QUEUES(trans, "Activate queue %d on FIFO %d WrPtr: %d\n", txq_id, fifo, ssn & 0xff); } @@ -1114,8 +1160,15 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) SCD_TX_STTS_QUEUE_OFFSET(txq_id); static const u32 zero_val[4] = {}; + /* + * Upon HW Rfkill - we stop the device, and then stop the queues + * in the op_mode. Just for the sake of the simplicity of the op_mode, + * allow the op_mode to call txq_disable after it already called + * stop_device. + */ if (!test_and_clear_bit(txq_id, trans_pcie->queue_used)) { - WARN_ONCE(1, "queue %d not used", txq_id); + WARN_ONCE(test_bit(STATUS_DEVICE_ENABLED, &trans->status), + "queue %d not used", txq_id); return; } @@ -1125,6 +1178,7 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) ARRAY_SIZE(zero_val)); iwl_pcie_txq_unmap(trans, txq_id); + trans_pcie->txq[txq_id].ampdu = false; IWL_DEBUG_TX_QUEUES(trans, "Deactivate queue %d\n", txq_id); } @@ -1134,10 +1188,10 @@ void iwl_trans_pcie_txq_disable(struct iwl_trans *trans, int txq_id) /* * iwl_pcie_enqueue_hcmd - enqueue a uCode command * @priv: device private data point - * @cmd: a point to the ucode command structure + * @cmd: a pointer to the ucode command structure * - * The function returns < 0 values to indicate the operation is - * failed. On success, it turns the index (> 0) of command in the + * The function returns < 0 values to indicate the operation + * failed. On success, it returns the index (>= 0) of command in the * command queue. */ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, @@ -1148,12 +1202,13 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, struct iwl_queue *q = &txq->q; struct iwl_device_cmd *out_cmd; struct iwl_cmd_meta *out_meta; + unsigned long flags; void *dup_buf = NULL; dma_addr_t phys_addr; int idx; u16 copy_size, cmd_size, scratch_size; bool had_nocopy = false; - int i; + int i, ret; u32 cmd_pos; const u8 *cmddata[IWL_MAX_CMD_TBS_PER_TFD]; u16 cmdlen[IWL_MAX_CMD_TBS_PER_TFD]; @@ -1260,28 +1315,39 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, cmd_pos = offsetof(struct iwl_device_cmd, payload); copy_size = sizeof(out_cmd->hdr); for (i = 0; i < IWL_MAX_CMD_TBS_PER_TFD; i++) { - int copy = 0; + int copy; if (!cmd->len[i]) continue; - /* need at least IWL_HCMD_SCRATCHBUF_SIZE copied */ - if (copy_size < IWL_HCMD_SCRATCHBUF_SIZE) { - copy = IWL_HCMD_SCRATCHBUF_SIZE - copy_size; - - if (copy > cmd->len[i]) - copy = cmd->len[i]; - } - /* copy everything if not nocopy/dup */ if (!(cmd->dataflags[i] & (IWL_HCMD_DFL_NOCOPY | - IWL_HCMD_DFL_DUP))) + IWL_HCMD_DFL_DUP))) { copy = cmd->len[i]; - if (copy) { memcpy((u8 *)out_cmd + cmd_pos, cmd->data[i], copy); cmd_pos += copy; copy_size += copy; + continue; + } + + /* + * Otherwise we need at least IWL_HCMD_SCRATCHBUF_SIZE copied + * in total (for the scratchbuf handling), but copy up to what + * we can fit into the payload for debug dump purposes. + */ + copy = min_t(int, TFD_MAX_PAYLOAD_SIZE - cmd_pos, cmd->len[i]); + + memcpy((u8 *)out_cmd + cmd_pos, cmd->data[i], copy); + cmd_pos += copy; + + /* However, treat copy_size the proper way, we need it below */ + if (copy_size < IWL_HCMD_SCRATCHBUF_SIZE) { + copy = IWL_HCMD_SCRATCHBUF_SIZE - copy_size; + + if (copy > cmd->len[i]) + copy = cmd->len[i]; + copy_size += copy; } } @@ -1296,7 +1362,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, memcpy(&txq->scratchbufs[q->write_ptr], &out_cmd->hdr, scratch_size); iwl_pcie_txq_build_tfd(trans, txq, iwl_pcie_get_scratchbuf_dma(txq, q->write_ptr), - scratch_size, 1); + scratch_size, true); /* map first command fragment, if any remains */ if (copy_size > scratch_size) { @@ -1312,7 +1378,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, } iwl_pcie_txq_build_tfd(trans, txq, phys_addr, - copy_size - scratch_size, 0); + copy_size - scratch_size, false); } /* map the remaining (adjusted) nocopy/dup fragments */ @@ -1335,7 +1401,7 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, goto out; } - iwl_pcie_txq_build_tfd(trans, txq, phys_addr, cmdlen[i], 0); + iwl_pcie_txq_build_tfd(trans, txq, phys_addr, cmdlen[i], false); } out_meta->flags = cmd->flags; @@ -1343,18 +1409,46 @@ static int iwl_pcie_enqueue_hcmd(struct iwl_trans *trans, kfree(txq->entries[idx].free_buf); txq->entries[idx].free_buf = dup_buf; - txq->need_update = 1; - trace_iwlwifi_dev_hcmd(trans->dev, cmd, cmd_size, &out_cmd->hdr); /* start timer if queue currently empty */ if (q->read_ptr == q->write_ptr && trans_pcie->wd_timeout) mod_timer(&txq->stuck_timer, jiffies + trans_pcie->wd_timeout); + spin_lock_irqsave(&trans_pcie->reg_lock, flags); + + /* + * wake up the NIC to make sure that the firmware will see the host + * command - we will let the NIC sleep once all the host commands + * returned. This needs to be done only on NICs that have + * apmg_wake_up_wa set. + */ + if (trans->cfg->base_params->apmg_wake_up_wa && + !trans_pcie->cmd_in_flight) { + trans_pcie->cmd_in_flight = true; + __iwl_trans_pcie_set_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + ret = iwl_poll_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN, + (CSR_GP_CNTRL_REG_FLAG_MAC_CLOCK_READY | + CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP), + 15000); + if (ret < 0) { + __iwl_trans_pcie_clear_bit(trans, CSR_GP_CNTRL, + CSR_GP_CNTRL_REG_FLAG_MAC_ACCESS_REQ); + spin_unlock_irqrestore(&trans_pcie->reg_lock, flags); + trans_pcie->cmd_in_flight = false; + idx = -EIO; + goto out; + } + } + /* Increment and update queue's write index */ - q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); + q->write_ptr = iwl_queue_inc_wrap(q->write_ptr); iwl_pcie_txq_inc_wr_ptr(trans, txq); + spin_unlock_irqrestore(&trans_pcie->reg_lock, flags); + out: spin_unlock_bh(&txq->lock); free_dup_buf: @@ -1419,12 +1513,12 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans, iwl_pcie_cmdq_reclaim(trans, txq_id, index); if (!(meta->flags & CMD_ASYNC)) { - if (!test_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status)) { + if (!test_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status)) { IWL_WARN(trans, "HCMD_ACTIVE already clear for command %s\n", get_cmd_string(trans_pcie, cmd->hdr.cmd)); } - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); IWL_DEBUG_INFO(trans, "Clearing HCMD_ACTIVE for command %s\n", get_cmd_string(trans_pcie, cmd->hdr.cmd)); wake_up(&trans_pcie->wait_command_queue); @@ -1435,7 +1529,7 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans, spin_unlock_bh(&txq->lock); } -#define HOST_COMPLETE_TIMEOUT (2 * HZ) +#define HOST_COMPLETE_TIMEOUT (2 * HZ) static int iwl_pcie_send_hcmd_async(struct iwl_trans *trans, struct iwl_host_cmd *cmd) @@ -1467,12 +1561,11 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, IWL_DEBUG_INFO(trans, "Attempting to send sync command %s\n", get_cmd_string(trans_pcie, cmd->id)); - if (WARN_ON(test_and_set_bit(STATUS_HCMD_ACTIVE, - &trans_pcie->status))) { - IWL_ERR(trans, "Command %s: a command is already active!\n", - get_cmd_string(trans_pcie, cmd->id)); + if (WARN(test_and_set_bit(STATUS_SYNC_HCMD_ACTIVE, + &trans->status), + "Command %s: a command is already active!\n", + get_cmd_string(trans_pcie, cmd->id))) return -EIO; - } IWL_DEBUG_INFO(trans, "Setting HCMD_ACTIVE for command %s\n", get_cmd_string(trans_pcie, cmd->id)); @@ -1480,7 +1573,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, cmd_idx = iwl_pcie_enqueue_hcmd(trans, cmd); if (cmd_idx < 0) { ret = cmd_idx; - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); IWL_ERR(trans, "Error sending %s: enqueue_hcmd failed: %d\n", get_cmd_string(trans_pcie, cmd->id), ret); @@ -1488,41 +1581,41 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans, } ret = wait_event_timeout(trans_pcie->wait_command_queue, - !test_bit(STATUS_HCMD_ACTIVE, - &trans_pcie->status), + !test_bit(STATUS_SYNC_HCMD_ACTIVE, + &trans->status), HOST_COMPLETE_TIMEOUT); if (!ret) { - if (test_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status)) { - struct iwl_txq *txq = - &trans_pcie->txq[trans_pcie->cmd_queue]; - struct iwl_queue *q = &txq->q; + struct iwl_txq *txq = &trans_pcie->txq[trans_pcie->cmd_queue]; + struct iwl_queue *q = &txq->q; - IWL_ERR(trans, - "Error sending %s: time out after %dms.\n", - get_cmd_string(trans_pcie, cmd->id), - jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); + IWL_ERR(trans, "Error sending %s: time out after %dms.\n", + get_cmd_string(trans_pcie, cmd->id), + jiffies_to_msecs(HOST_COMPLETE_TIMEOUT)); - IWL_ERR(trans, - "Current CMD queue read_ptr %d write_ptr %d\n", - q->read_ptr, q->write_ptr); - - clear_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status); - IWL_DEBUG_INFO(trans, - "Clearing HCMD_ACTIVE for command %s\n", - get_cmd_string(trans_pcie, cmd->id)); - ret = -ETIMEDOUT; - goto cancel; - } + IWL_ERR(trans, "Current CMD queue read_ptr %d write_ptr %d\n", + q->read_ptr, q->write_ptr); + + clear_bit(STATUS_SYNC_HCMD_ACTIVE, &trans->status); + IWL_DEBUG_INFO(trans, "Clearing HCMD_ACTIVE for command %s\n", + get_cmd_string(trans_pcie, cmd->id)); + ret = -ETIMEDOUT; + + iwl_force_nmi(trans); + iwl_trans_fw_error(trans); + + goto cancel; } - if (test_bit(STATUS_FW_ERROR, &trans_pcie->status)) { + if (test_bit(STATUS_FW_ERROR, &trans->status)) { IWL_ERR(trans, "FW error in SYNC CMD %s\n", get_cmd_string(trans_pcie, cmd->id)); + dump_stack(); ret = -EIO; goto cancel; } - if (test_bit(STATUS_RFKILL, &trans_pcie->status)) { + if (!(cmd->flags & CMD_SEND_IN_RFKILL) && + test_bit(STATUS_RFKILL, &trans->status)) { IWL_DEBUG_RF_KILL(trans, "RFKILL in SYNC CMD... no rsp\n"); ret = -ERFKILL; goto cancel; @@ -1559,12 +1652,8 @@ cancel: int iwl_trans_pcie_send_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd) { - struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans); - - if (test_bit(STATUS_FW_ERROR, &trans_pcie->status)) - return -EIO; - - if (test_bit(STATUS_RFKILL, &trans_pcie->status)) { + if (!(cmd->flags & CMD_SEND_IN_RFKILL) && + test_bit(STATUS_RFKILL, &trans->status)) { IWL_DEBUG_RF_KILL(trans, "Dropping CMD 0x%x: RF KILL\n", cmd->id); return -ERFKILL; @@ -1589,18 +1678,17 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, dma_addr_t tb0_phys, tb1_phys, scratch_phys; void *tb1_addr; u16 len, tb1_len, tb2_len; - u8 wait_write_ptr = 0; + bool wait_write_ptr; __le16 fc = hdr->frame_control; u8 hdr_len = ieee80211_hdrlen(fc); - u16 __maybe_unused wifi_seq; + u16 wifi_seq; txq = &trans_pcie->txq[txq_id]; q = &txq->q; - if (unlikely(!test_bit(txq_id, trans_pcie->queue_used))) { - WARN_ON_ONCE(1); + if (WARN_ONCE(!test_bit(txq_id, trans_pcie->queue_used), + "TX on unused queue %d\n", txq_id)) return -EINVAL; - } spin_lock(&txq->lock); @@ -1609,19 +1697,16 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, * the BA. * Check here that the packets are in the right place on the ring. */ -#ifdef CONFIG_IWLWIFI_DEBUG wifi_seq = IEEE80211_SEQ_TO_SN(le16_to_cpu(hdr->seq_ctrl)); - WARN_ONCE((iwl_read_prph(trans, SCD_AGGR_SEL) & BIT(txq_id)) && - ((wifi_seq & 0xff) != q->write_ptr), + WARN_ONCE(txq->ampdu && + (wifi_seq & 0xff) != q->write_ptr, "Q: %d WiFi Seq %d tfdNum %d", txq_id, wifi_seq, q->write_ptr); -#endif /* Set up driver data for this TFD */ txq->entries[q->write_ptr].skb = skb; txq->entries[q->write_ptr].cmd = dev_cmd; - dev_cmd->hdr.cmd = REPLY_TX; dev_cmd->hdr.sequence = cpu_to_le16((u16)(QUEUE_TO_SEQ(txq_id) | INDEX_TO_SEQ(q->write_ptr))); @@ -1644,7 +1729,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, */ len = sizeof(struct iwl_tx_cmd) + sizeof(struct iwl_cmd_header) + hdr_len - IWL_HCMD_SCRATCHBUF_SIZE; - tb1_len = (len + 3) & ~3; + tb1_len = ALIGN(len, 4); /* Tell NIC about any 2-byte padding after MAC header */ if (tb1_len != len) @@ -1654,7 +1739,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, memcpy(&txq->scratchbufs[q->write_ptr], &dev_cmd->hdr, IWL_HCMD_SCRATCHBUF_SIZE); iwl_pcie_txq_build_tfd(trans, txq, tb0_phys, - IWL_HCMD_SCRATCHBUF_SIZE, 1); + IWL_HCMD_SCRATCHBUF_SIZE, true); /* there must be data left over for TB1 or this code must be changed */ BUILD_BUG_ON(sizeof(struct iwl_tx_cmd) < IWL_HCMD_SCRATCHBUF_SIZE); @@ -1664,7 +1749,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, tb1_phys = dma_map_single(trans->dev, tb1_addr, tb1_len, DMA_TO_DEVICE); if (unlikely(dma_mapping_error(trans->dev, tb1_phys))) goto out_err; - iwl_pcie_txq_build_tfd(trans, txq, tb1_phys, tb1_len, 0); + iwl_pcie_txq_build_tfd(trans, txq, tb1_phys, tb1_len, false); /* * Set up TFD's third entry to point directly to remainder @@ -1680,7 +1765,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, &txq->tfds[q->write_ptr]); goto out_err; } - iwl_pcie_txq_build_tfd(trans, txq, tb2_phys, tb2_len, 0); + iwl_pcie_txq_build_tfd(trans, txq, tb2_phys, tb2_len, false); } /* Set up entry for this TFD in Tx byte-count array */ @@ -1694,12 +1779,7 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, trace_iwlwifi_dev_tx_data(trans->dev, skb, skb->data + hdr_len, tb2_len); - if (!ieee80211_has_morefrags(fc)) { - txq->need_update = 1; - } else { - wait_write_ptr = 1; - txq->need_update = 0; - } + wait_write_ptr = ieee80211_has_morefrags(fc); /* start timer if queue currently empty */ if (txq->need_update && q->read_ptr == q->write_ptr && @@ -1707,22 +1787,19 @@ int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb, mod_timer(&txq->stuck_timer, jiffies + trans_pcie->wd_timeout); /* Tell device the write index *just past* this latest filled TFD */ - q->write_ptr = iwl_queue_inc_wrap(q->write_ptr, q->n_bd); - iwl_pcie_txq_inc_wr_ptr(trans, txq); + q->write_ptr = iwl_queue_inc_wrap(q->write_ptr); + if (!wait_write_ptr) + iwl_pcie_txq_inc_wr_ptr(trans, txq); /* * At this point the frame is "transmitted" successfully - * and we will get a TX status notification eventually, - * regardless of the value of ret. "ret" only indicates - * whether or not we should update the write pointer. + * and we will get a TX status notification eventually. */ if (iwl_queue_space(q) < q->high_mark) { - if (wait_write_ptr) { - txq->need_update = 1; + if (wait_write_ptr) iwl_pcie_txq_inc_wr_ptr(trans, txq); - } else { + else iwl_stop_queue(trans, txq); - } } spin_unlock(&txq->lock); return 0; |